Restaurant & Bar Build-Out Guide for Contractors (2026)

Restaurant and bar build-outs are a different animal from standard commercial construction. The MEP requirements are heavier, the code landscape is more complex, and the owners are almost always racing toward a hard opening date that doesn’t care about your permitting delays or equipment lead times. If you get these projects right, they’re profitable and lead to more hospitality work. If you get them wrong, they’ll eat your margin and your sanity.

This guide is written for general contractors and commercial subs who are either already doing restaurant work or looking to break into it. We’ll cover the full lifecycle from initial assessment through certificate of occupancy, with a focus on the practical details that actually determine whether you make money on these projects.

Why Restaurant and Bar Build-Outs Are Worth the Complexity

There’s a reason experienced commercial contractors gravitate toward hospitality work even though it’s more demanding than a standard office or retail build-out. The economics and the repeat business potential make it worth the extra effort.

Higher project values. A 2,500 square foot restaurant build-out typically runs $250,000 to $750,000 or more depending on the concept and market. That’s significantly more revenue per square foot than most office tenant improvements. The density of MEP work, finishes, and specialty systems means there’s simply more construction happening per square foot, which translates to higher contract values.

Repeat business from restaurant groups. Individual restaurateurs might be one-and-done clients, but restaurant groups open multiple locations. If you build one location well, on time, and on budget, you become their go-to contractor for the next one. Groups that are expanding might open two or three locations per year, and they want a contractor who already knows their specs and can hit the ground running.

Referral networks are tight. The restaurant and bar industry is a small world. Owners talk to each other. Kitchen equipment vendors refer contractors. Designers and architects who specialize in hospitality have a short list of contractors they trust. Once you’re on that list, you get calls without marketing for them.

Year-round work. Restaurants open year-round. There’s no seasonal slowdown the way there is with some residential or exterior commercial work. A contractor with a steady pipeline of hospitality projects can keep crews busy twelve months a year.

Diverse skill development. These projects touch every trade at a high level. Your crew gets experience with commercial kitchen ventilation, grease waste plumbing, high-amperage electrical, specialty finishes, and complex coordination. That experience translates to capability on other demanding project types.

The complexity isn’t a downside if you have the right systems. It’s a barrier to entry that keeps less organized competitors out of the space. Contractors who invest in understanding the codes, building relationships with health departments, and developing accurate estimating templates for hospitality work create a competitive advantage that’s hard to replicate.

Understanding the Scope: What Makes Restaurant Build-Outs Different

Before you price a restaurant build-out, you need to understand why these projects are fundamentally different from a standard commercial interior fit-out. The differences show up in every phase, from permitting to punch list.

The Kitchen Is the Project

In a restaurant build-out, the kitchen drives everything. The kitchen footprint, equipment layout, and ventilation requirements dictate the structural, mechanical, electrical, and plumbing design for the entire space. You can’t finalize the dining room layout until the kitchen is designed, because the kitchen’s exhaust hood location affects the HVAC system, the grease trap location affects the plumbing routing, and the electrical panel sizing depends on the equipment load.

If the owner hasn’t finalized the kitchen design and equipment list before you start estimating, you’re guessing. And guessing on a commercial kitchen rough-in is how contractors lose $30,000 on a single project.

Code Complexity Is Higher

A standard office build-out might involve building, electrical, and mechanical permits. A restaurant build-out adds health department plan review, fire marshal review (for hood suppression systems and occupancy loads), liquor authority requirements (if there’s a bar), and ADA compliance that goes beyond what most commercial spaces require.

Each of these agencies has their own review timeline, and they don’t coordinate with each other. Your schedule needs to account for the slowest reviewer in the chain. In many markets, the health department plan review alone takes four to six weeks. If you don’t submit early, you’re sitting on a fully permitted building project that can’t proceed because the health department hasn’t signed off on the kitchen layout.

MEP Density Is Extreme

Compare the electrical requirements of a 2,500 square foot office space to a 2,500 square foot restaurant. The office might need a 200-amp service. The restaurant might need 600 to 800 amps depending on the kitchen equipment. Commercial ovens, fryers, walk-in coolers, walk-in freezers, ice machines, dishwashers, and hood systems all pull significant power.

The plumbing is equally dense. A commercial kitchen has multiple sinks (three-compartment, hand wash, prep, mop), floor drains throughout, grease interceptors, hot water systems sized for commercial dishwashing, and potentially gas lines to multiple pieces of equipment. The bar adds its own set of plumbing for glass washers, ice bins, hand sinks, and floor drains.

HVAC is complicated by the kitchen exhaust hood system. Type I hoods over cooking equipment require dedicated make-up air systems to replace the air being exhausted. Without adequate make-up air, the restaurant develops negative pressure that pulls air through every crack and opening, makes doors hard to open, and creates uncomfortable drafts in the dining room. The HVAC design has to account for the exhaust volume and provide balanced make-up air.

Owner Expectations Are Different

Restaurant owners are not like office tenants. They have an opening date tied to lease obligations, investor commitments, staffing plans, and sometimes seasonal business cycles. A three-week delay doesn’t just inconvenience them. It costs them tens of thousands in rent on a space that isn’t generating revenue, staff that’s being paid to train in a space that isn’t finished, and marketing commitments for an opening that has to be postponed.

This urgency means restaurant owners are both highly motivated clients and highly demanding ones. They’ll call you daily. They’ll visit the site constantly. They’ll want to make changes late in the game because they just saw something at another restaurant that they want to incorporate. Managing those expectations without damaging the relationship requires clear communication systems and firm change order processes.

Site Assessment and Pre-Construction Planning

The work you do before construction starts determines whether the project runs smoothly or turns into a mess. Restaurant build-outs have more pre-construction variables than most commercial projects, and skipping steps here creates problems that compound throughout the build.

Evaluating the Existing Space

Restaurant build-outs generally fall into one of three categories:

Shell condition (new construction or vanilla box). You’re starting from bare walls, concrete floor, and basic utility stubs. This gives you the most flexibility in layout but also the most scope. Everything from the grease interceptor to the hood system to the finished dining room is on you.

Second-generation restaurant space. The previous tenant was also a restaurant, and some of the kitchen infrastructure is in place. This can be a huge advantage if the existing hood, grease trap, and electrical service are adequate for the new concept. It can also be a trap if you assume the existing systems are code-compliant or sized correctly for different equipment.

Conversion from non-restaurant use. The space was previously retail, office, or something else entirely. This is the most challenging scenario because none of the restaurant-specific infrastructure exists. You’ll need to bring in gas service, upgrade electrical, install grease interceptors (often requiring exterior excavation), and build the kitchen ventilation system from scratch.

During your site assessment, document:

• Existing electrical service size and panel capacity
• Gas service availability and meter size
• Existing plumbing (water supply size, sewer connection location, grease interceptor presence and condition)
• HVAC system type, capacity, and condition
• Structural elements (load-bearing walls, column locations, ceiling height)
• Floor condition and slope (critical for kitchen floor drains)
• Exterior access for grease trap, exhaust duct routing, dumpster placement
• ADA accessibility of entrances, restrooms, and dining areas
• Condition of any existing kitchen equipment the owner plans to reuse

Assembling the Right Team Early

Restaurant build-outs require more pre-construction coordination than most projects. Before you finalize your estimate, you need input from:

Kitchen design consultant. Most restaurant owners work with a kitchen designer or equipment supplier who creates the kitchen layout and specifies the equipment. You need their finalized plans to do accurate rough-in pricing. If the owner doesn’t have a kitchen designer, recommend one. Estimating a kitchen rough-in from a napkin sketch is a guaranteed path to change orders.

Health department. Many jurisdictions offer pre-application meetings where you can review the proposed layout and get feedback before submitting the formal plan review. Take advantage of this. A 30-minute meeting can identify issues that would otherwise delay your permit by weeks.

MEP engineer. For anything beyond a simple second-gen conversion, you’ll want an engineer sizing the electrical service, designing the HVAC system with make-up air calculations, and specifying the plumbing systems. The engineering cost is minor compared to the cost of undersized systems that fail inspection.

Fire protection contractor. Kitchen hood suppression systems are specialized. Your fire protection sub should be involved during design, not called in after the hood is hung. The suppression system design affects the hood layout, the gas line routing (for automatic gas shutoff), and the fire alarm integration.

Permitting Strategy

Submit permits as early as possible, and submit them in parallel where your jurisdiction allows it. The typical permit package for a restaurant build-out includes:

• Building permit (architectural plans, structural if needed)
• Mechanical permit (HVAC, kitchen ventilation, make-up air)
• Electrical permit
• Plumbing permit
• Health department plan review
• Fire marshal review (especially for hood suppression, occupancy load, exit paths)
• Sign permits (often overlooked until late)

In many jurisdictions, you can submit the building permit while the health department review is still in progress. The building department issues the permit for the general construction, and the health department signs off on the kitchen-specific elements. Understand your local process so you can start work on non-kitchen areas while the health department review is pending.

Estimating Restaurant and Bar Build-Outs

Accurate estimating on restaurant projects requires more upfront work than most commercial jobs. The number of specialty systems and the density of the MEP scope mean that a miss on any major line item can sink your margin.

Break the Estimate into Zones

Restaurant build-outs are easier to estimate accurately when you break the space into functional zones, each with its own set of requirements:

Kitchen. This is the most expensive zone per square foot. Your estimate needs to account for: demolition of existing conditions, floor prep and slope corrections for drainage, floor drains and grease waste piping, water supply lines to each piece of equipment, gas piping to cooking equipment, electrical circuits for each piece of equipment (many require dedicated circuits), exhaust hood and ductwork, make-up air system, fire suppression system for the hood, walk-in cooler and freezer (including refrigeration lines, electrical, and floor insulation), three-compartment sink, hand wash sinks, prep sinks, wall and ceiling finishes (FRP panels, stainless steel, or tile per health department requirements), and commercial flooring (typically quarry tile or epoxy with integral cove base).

Bar. The bar area has its own MEP needs: bar sink and glass washer plumbing, ice bin drainage, floor drains behind the bar, dedicated electrical for coolers, ice machines, and POS systems, specialty lighting, and often a separate HVAC zone because the bar area runs warmer with equipment heat and higher occupancy density.

Dining room. This is closer to a standard commercial finish-out: flooring, wall finishes, lighting, HVAC distribution, electrical for receptacles and POS stations, and any architectural features like booths, banquettes, or feature walls.

Restrooms. ADA-compliant restrooms with commercial fixtures, proper ventilation, and finishes that hold up to high-traffic restaurant use. Health departments have specific requirements for employee and customer restrooms in food service establishments.

Back of house. Dry storage, office space, employee areas, mop sink, water heater, and mechanical rooms. Less flashy but still has specific code requirements.

Get Equipment Specs Before You Price Rough-In

This is worth repeating: do not finalize your MEP estimate until you have the equipment specification sheets. Every commercial kitchen appliance has specific requirements for electrical (voltage, amperage, phase), plumbing (water supply size, drain size, connection type), and gas (BTU rating, connection size). A combi oven might need a 208V 60A three-phase circuit, a water connection with a specific pressure range, and a dedicated drain. If you estimate generic rough-in and the actual equipment needs something different, you’re eating the cost to redo it.

Create a rough-in matrix that lists every piece of equipment with its utility requirements. Cross-reference this with your MEP plans to make sure every connection is accounted for. This matrix becomes a critical coordination document during construction and a check list during rough-in inspection.

Line Items That Get Missed

Restaurant build-outs have a long tail of costs that are easy to forget:

• Grease interceptor. Interior or exterior, sized per local code based on fixture count and kitchen size. Exterior grease traps require excavation and can run $8,000 to $25,000 depending on size and site conditions.
• Backflow preventer. Required on the water service for any commercial food service establishment. $1,500 to $4,000 installed.
• Fire suppression system. Wet chemical suppression for the hood, including gas shutoff integration. $3,000 to $8,000 depending on hood size and number of nozzles.
• Ansul system inspection and certification. Required before the fire marshal signs off.
• Make-up air unit. Often a rooftop unit that requires structural support, curbing, and ductwork. $5,000 to $15,000 or more.
• Walk-in cooler/freezer. The unit itself is often owner-furnished, but the contractor is responsible for the floor insulation, electrical connection, refrigeration line set (if remote condensing unit), floor drain, and any structural work for rooftop condenser.
• POS and low-voltage infrastructure. Data drops, POS station electrical, music system wiring, security cameras, and phone lines.
• Signage and exterior work. Awnings, patio infrastructure, exterior lighting, and sign installation.
• Final clean. Restaurant openings require a level of clean that goes beyond standard construction cleaning. Health departments inspect for cleanliness before issuing the food service permit.

Protecting Margins on Change-Heavy Projects

Restaurant owners change their minds more than almost any other client type. The concept evolves during construction. They visit a competitor’s new location and want to add a feature. The chef joins the project mid-build and has different kitchen requirements than the original plan.

Your contract needs a clear change order process with written approval required before any additional work begins. Use construction estimating and change order tools that make it easy to generate, price, and document changes so nothing falls through the cracks. Every verbal “can you also add…” should be followed by a written change order with a price and schedule impact before anyone picks up a tool.

Build contingency into your estimate. A 10% contingency on a restaurant build-out is not padding. It’s realistic planning for the unknown conditions and owner-driven changes that will happen. If you don’t use it, great. If you do, your margin is protected.

Scheduling the Build: Trade Sequencing for Restaurant Projects

Restaurant build-outs have more trade overlaps and harder dependencies than standard commercial work. Getting the sequence right keeps the project on schedule. Getting it wrong creates expensive idle time and rework that eats your margin.

Phase 1: Demo and Site Prep (Week 1-2)

• Selective demolition of existing conditions
• Structural modifications (new openings, headers, posts)
• Slab cutting for plumbing (kitchen drains, grease waste, floor drains)
• Exterior excavation for grease interceptor (if required)
• Rough grading for kitchen floor slope

Demo on a second-gen restaurant space can uncover surprises: corroded grease lines, undersized electrical service, or structural modifications from a previous tenant that weren’t permitted. Budget time in your schedule for discovery and plan review after demo.

Phase 2: Underground and Rough-In (Week 2-5)

• Underground plumbing (kitchen drains, floor drains, grease waste to interceptor)
• Slab repair and pour-back
• Wall framing
• MEP rough-in (electrical, plumbing above slab, gas piping, HVAC ductwork)
• Kitchen hood installation and ductwork
• Fire suppression rough-in
• Low-voltage rough-in
• Roof penetrations for exhaust and make-up air

This is the most coordination-intensive phase. Your plumber, electrician, HVAC crew, and fire suppression contractor are all working in the same spaces. Use your project scheduling software to map dependencies and communicate timing to every sub. The plumber needs to finish underground before you pour back the slab. The framer needs to be done before the electrician starts pulling wire. The hood needs to be set before the fire suppression contractor can install nozzles.

A pre-rough-in coordination meeting with all your MEP subs is not optional on these projects. Walk the space together, identify conflicts, and agree on routing. Thirty minutes of planning saves days of rework.

Phase 3: Inspections and Close-In (Week 5-7)

• Rough-in inspections (building, electrical, plumbing, mechanical)
• Health department rough-in inspection (some jurisdictions require this)
• Fire marshal hood and suppression inspection
• Insulation
• Drywall or FRP installation in kitchen
• Drywall in dining room, restrooms, and back of house

Schedule inspections the moment rough-in is complete. Every day you wait for an inspector is a day your drywall crew sits idle. In busy jurisdictions, inspection wait times can stretch to a week or more. Build that into your schedule and request inspections early.

Phase 4: Finishes (Week 7-12)

• Kitchen wall and ceiling finishes (FRP, tile, stainless)
• Kitchen flooring (quarry tile or epoxy)
• Dining room and restroom finishes (paint, wall treatments, tile)
• Dining room flooring
• Millwork and cabinetry (bar top, host stand, banquettes, shelving)
• Bar installation
• Finish electrical (fixtures, devices, switches)
• Finish plumbing (fixtures, faucets, trim)
• Ceiling grid and tile (if applicable)
• Specialties (mirrors, accessories, grab bars, toilet partitions)

The finish phase on a restaurant is longer than most commercial projects because the variety of finishes is greater. You might have quarry tile in the kitchen, hardwood in the dining room, ceramic tile in the restrooms, and epoxy in the walk-in. Each finish has its own sub, its own prep requirements, and its own cure times.

Phase 5: Equipment, Testing, and Closeout (Week 12-14)

• Kitchen equipment delivery and setting
• Equipment connections (electrical, plumbing, gas)
• Walk-in cooler and freezer startup
• Hood system balancing and testing
• Make-up air balancing
• HVAC balancing and commissioning
• Fire suppression system testing and certification
• Health department final inspection
• Building department final inspection
• Fire marshal final inspection
• Certificate of occupancy
• Punch list and closeout

Equipment delivery and connection is a phase that catches contractors off guard. Commercial kitchen equipment is heavy, bulky, and specific about placement. A single combi oven might weigh 500 pounds and need to be positioned within an inch of the specified location to align with pre-run utilities. Coordinate delivery access, staging, and rigging requirements before the equipment shows up.

Health Department Requirements Every Contractor Needs to Know

The health department is the regulatory body that causes the most schedule delays and the most rework on restaurant projects. Understanding their requirements before you start building prevents costly surprises during inspections.

Plan Review Comes First

Most health departments require a plan review before construction begins. They want to see the kitchen layout, equipment placement, finish specifications, plumbing fixture count and locations, ventilation details, and food flow patterns (how raw food moves through the kitchen to the plate without cross-contamination).

Submit the health department plan review at the same time you submit for the building permit. Don’t wait for the building permit to be issued before starting the health department process. These reviews run in parallel, and the health department review almost always takes longer.

Common Health Department Requirements

While requirements vary by jurisdiction, these are standard across most areas:

Floors. Kitchen floors must be smooth, non-absorbent, easily cleanable, and sloped to drains. Quarry tile with epoxy grout is the most common specification. Integral cove base is typically required where the floor meets the wall to eliminate corners where food debris can accumulate.

Walls. Kitchen walls must be smooth, non-absorbent, and easily cleanable to a height of at least six feet (some jurisdictions require floor to ceiling). FRP (fiberglass reinforced panels), stainless steel, or ceramic tile are the standard options. Drywall with paint is generally not accepted in cooking and food prep areas.

Ceilings. Kitchen ceilings must be smooth, non-absorbent, and easily cleanable. Painted drywall or FRP are common. Suspended acoustic tile is sometimes permitted in food prep areas if it’s the washable type, but many jurisdictions don’t allow it over cooking areas.

Sinks. A commercial kitchen typically requires: a three-compartment sink for washing, rinsing, and sanitizing, hand wash sinks accessible to food handlers without leaving the food prep area (most codes require at least one hand sink within 25 feet of any food handling area), a mop sink or utility sink, and prep sinks as needed.

Hot water. The dishwasher and three-compartment sink require water at specific temperatures (typically 120F for washing, 140F minimum at the dishwasher for sanitizing). Your water heater sizing needs to handle peak demand, which in a busy restaurant is significant. Undersized hot water is a common inspection failure.

Grease control. Grease interceptors are required for any fixture that discharges grease-laden water. The interceptor must be sized according to the total flow from connected fixtures. Interior point-of-use interceptors under individual sinks are allowed in some jurisdictions, while others require a centralized exterior grease trap.

Food storage. Dry storage areas need to be separate from chemical storage. All food storage must be at least six inches off the floor. Walk-in coolers and freezers need accurate thermometers and adequate shelving.

Working with the Inspector

Health department inspectors are not adversaries. They’re checking for compliance with food safety standards that protect public health. The contractors who develop good relationships with their local health inspectors get faster turnaround on reviews, clearer guidance on ambiguous requirements, and the benefit of the doubt on borderline issues.

Invite the health department to do a pre-inspection walkthrough before you request the final inspection. This informal visit lets them flag issues while you still have trades on site to fix them. A failed final inspection when the owner has already set their opening date is a disaster for everyone.

Bar Build-Out Specifics: Plumbing, Electrical, and Code Considerations

The bar is often the most profitable area of a restaurant per square foot, and it has its own set of construction requirements that differ from the kitchen and dining room.

Bar Plumbing

A properly built bar requires more plumbing than most people realize:

• Bar sink. At minimum a two-compartment sink for rinsing glassware, though many operations also install an under-bar glass washer.
• Hand wash sink. Required for bartenders, separate from the bar sink.
• Ice bin drainage. Built-in ice bins need drain connections. These are small diameter lines but they need to be run during rough-in.
• Floor drains. Behind the bar and in any area where spills are expected. Slope the floor behind the bar to these drains.
• Beer system glycol lines. If the bar has a walk-in keg cooler with long-draw draft lines, you’ll need a glycol trunk line run from the cooler to the taps. Plan the chase or conduit path during framing.
• Carbonation system. CO2 lines from the tank location to the bar for draft beer and soda guns.

Bar Electrical

Behind a typical bar you’ll need:

• Dedicated circuits for the glass washer, under-bar refrigeration, and ice machine
• Circuits for POS terminals and cash drawers
• Outlets for blenders and specialty equipment
• Low-voltage for POS data, music system, and TVs
• Decorative and task lighting circuits (bars often have complex lighting with dimmers and zones)

Plan for more circuits than you think you need behind a bar. Operators always add equipment after opening, and having spare capacity in the panel and a few extra circuits behind the bar saves you from a callback six months later.

Liquor Authority and Code Requirements

If the establishment serves alcohol, there may be additional code requirements depending on your jurisdiction:

• Separation between bar area and dining area (some jurisdictions require physical barriers)
• Specific restroom counts based on bar occupancy separate from dining occupancy
• Security camera requirements in some areas
• Sound insulation requirements if the bar concept includes live music or a DJ
• Occupancy load calculations that account for standing patrons at the bar (different density factor than seated dining)

The liquor license application process is the owner’s responsibility, but construction details like bar layout, entry/exit locations, and proximity to schools or churches can affect license approval. Be aware of these factors during design so you’re not building something that creates licensing problems.

ADA Compliance in Restaurant and Bar Construction

ADA compliance in restaurants goes beyond standard commercial accessibility requirements. The combination of dining, bar, and restroom areas creates multiple compliance checkpoints that need attention during design and construction.

Accessible Routes

The path from the entrance through the dining area to the restrooms must be accessible. This means 36-inch minimum clear width, no steps or level changes without ramps (1:12 slope maximum), and door openings of at least 32 inches clear. In a restaurant where every square foot of dining space represents revenue, owners push back on accessibility requirements that reduce seating capacity. Your job is to build what’s code-compliant, not to negotiate ADA waivers.

Dining Area Requirements

At least 5% of dining seats must be accessible, and accessible seating must be dispersed throughout the dining area, not clustered in one corner. Tables need knee clearance of at least 27 inches high, 30 inches wide, and 19 inches deep. Booth seating is popular in restaurants, but you need accessible table seating interspersed with the booths.

If the restaurant has a raised platform or mezzanine dining area, the same menu and level of service must be available in the accessible area. You can’t put all the good seats on a raised platform and relegate accessible seating to the back corner.

Bar Accessibility

A portion of the bar counter must be accessible, typically at 34 inches maximum height (compared to the standard 42-inch bar height). This is often handled with a lowered section of the bar top. The accessible section needs approach clearance and knee space just like an accessible table.

Restroom Requirements

Restaurant restrooms must meet ADA requirements for accessible stalls, fixture heights, grab bar placement, clear floor space, and door hardware. In a single-user restroom, the entire room must be accessible. In multi-stall restrooms, at least one stall must be wheelchair-accessible with the required 60-inch turning radius.

Don’t forget that the path to the restroom must also be accessible. Restaurants with narrow hallways to the restrooms or level changes between the dining area and the restroom corridor need design attention during the planning phase, not discovery during the final inspection.

Managing the Owner Relationship on Restaurant Projects

Restaurant owners are passionate, invested, and often spending their life savings on a concept they’ve dreamed about for years. That emotional investment makes them engaged clients, which is great, but it also makes them prone to scope creep, late changes, and unrealistic expectations. Managing the relationship well is as important as managing the construction.

Set the Communication Framework Early

Establish how and when you’ll communicate from day one. A weekly progress meeting with a standing agenda keeps the owner informed without them calling you five times a day. Use a construction project communication platform where the owner can see the schedule, view progress photos, and submit questions in an organized way.

Restaurant owners who feel informed are easier to manage than ones who feel in the dark. When they don’t hear from you, they assume the worst. A quick photo update showing progress calms anxiety and reduces the “just checking in” phone calls that eat your day.

Handle Change Requests Firmly but Professionally

You will get change requests on every restaurant project. The owner will want to move a wall, add an outlet, change the tile, upgrade the bar top, or reconfigure the kitchen layout after they attend a food show and see a new piece of equipment. Some of these changes are minor. Some will blow your schedule.

Every change gets documented with a price and a schedule impact before work begins. No exceptions. The owner who says “just do it, we’ll figure out the cost later” is the same owner who disputes the invoice at the end of the project. A clean change order process protects both sides.

When a change request comes in late and will impact the schedule, be honest about it. “We can absolutely make that change, but it pushes the opening date by five days because we need to reroute the gas line and get a re-inspection.” Let the owner make an informed decision rather than absorbing the schedule impact yourself.

Coordinate with Their Other Vendors

The restaurant owner has vendors you’ll need to work with who are outside your contract: the kitchen equipment supplier, the POS vendor, the furniture supplier, the sound system installer, the signage company, and sometimes an interior designer. These vendors all need access to the space at specific times, and their work needs to coordinate with yours.

Create a vendor coordination schedule during pre-construction. Identify when each vendor needs access, what site conditions they require (power, finished floors, etc.), and who is responsible for coordinating deliveries. The POS vendor who shows up to install terminals before your electrician has finished the data drops creates chaos. The furniture delivery that arrives before the flooring is cured creates damage claims.

This is where having your entire project schedule visible in a centralized scheduling tool pays off. When every vendor and sub can see the timeline, they plan accordingly instead of showing up when it’s convenient for them.

Specialty Systems: Exhaust Hoods, Fire Suppression, and Grease Management

These three systems are the heart of a restaurant build-out’s mechanical scope, and they’re the areas where contractors who are new to hospitality work make the most expensive mistakes.

Kitchen Exhaust Hood Systems

Type I hoods are required over any equipment that produces grease-laden vapors: fryers, grills, charbroilers, ranges, and similar cooking equipment. Type II hoods cover equipment that produces heat and steam but not grease: dishwashers, ovens, and steamers.

The hood size is determined by the equipment underneath it, with required overhangs on all open sides (typically 6 inches on the sides and back, 12 inches on the front). The exhaust rate is calculated based on the hood type, size, and the cooking equipment being served. These aren’t numbers you guess at. They’re engineered calculations that affect the make-up air system, the ductwork sizing, and the roof penetration.

Hood ductwork must be welded stainless steel or listed factory-built grease duct in most jurisdictions. Joints must be designed so that grease flows back toward the hood, not toward the fan. Access panels are required at every change of direction for cleaning. The duct route from the hood to the roof exhaust fan needs to be as short and direct as possible, and it needs to maintain fire-rated separation from combustible construction.

The exhaust fan is typically mounted on the roof with a grease-rated curb. Plan for structural support if the fan is large, and make sure the ductwork penetration is properly fire-rated and weatherproofed.

Fire Suppression

Kitchen hood fire suppression is a wet chemical system (commonly called by the brand name Ansul, though there are other manufacturers). The system includes nozzles positioned to cover each piece of cooking equipment, a chemical tank, a manual pull station, and automatic activation via fusible links in the hood.

The fire suppression system must tie into the gas shutoff, automatically closing the gas valve to all cooking equipment when the system activates. It should also tie into the building fire alarm and the exhaust fan shunt trip (shutting down the exhaust to prevent feeding the fire with air).

This system is designed, installed, and certified by a licensed fire protection contractor. Your role as the GC is to coordinate the installation timing, ensure the rough-in for the gas shutoff valve is accessible, and make sure the system is tested and certified before the final fire marshal inspection. Do not let the fire protection sub be your schedule’s last coordination item. Get them involved during design so their requirements are built into the hood and gas rough-in plan.

Grease Interceptors and Waste Management

Grease interceptors prevent fats, oils, and grease from entering the municipal sewer system. They’re required by virtually every jurisdiction for commercial food service establishments.

Interior point-of-use interceptors (small units installed under individual sinks or in the floor) work for some applications, but most jurisdictions require a centralized exterior grease interceptor for full-service restaurants. These are large concrete or fiberglass vaults buried outside the building, sized based on the flow rate from all connected fixtures.

Exterior grease interceptor installation requires excavation, which means you need to do it early in the project before site work is finished. If the building is in a multi-tenant shopping center, you’ll need landlord approval for the excavation location and may need to coordinate with the property’s overall grease waste system.

Grease interceptors require regular pumping and maintenance. Make sure the installation includes an accessible cleanout cover and that the location doesn’t conflict with parking, deliveries, or landscaping. The owner will be paying for regular pumping service, and the service truck needs to be able to reach the interceptor.

Post-Construction: From Final Inspections to Opening Night

The last two weeks of a restaurant build-out are the most intense. Multiple inspections from different agencies, equipment commissioning, vendor installations, and the owner’s growing urgency all converge at once.

Inspection Sequencing

Plan your final inspections in the right order:

1. Building department final. This covers the general construction, electrical, plumbing, and mechanical.
2. Fire marshal final. Hood suppression certification, fire alarm testing, exit signs and emergency lighting, occupancy load posting, and fire extinguisher placement.
3. Health department final. Kitchen finishes, equipment installation, plumbing fixtures, hot water temperatures, food storage areas, and general cleanliness. This is often the last inspection before the certificate of occupancy.

Some jurisdictions issue a temporary certificate of occupancy that allows the restaurant to open while minor punch items are completed. Others require everything to be 100% complete. Know your local process and plan accordingly.

Punch List Management

The punch list on a restaurant project is always longer than you expect. Between the dining room finishes, the kitchen equipment alignment, the bar millwork details, and the restroom accessories, there are hundreds of small items that need attention. Walk the project with your superintendent and create a detailed punch list organized by area and trade at least two weeks before the target opening date. Don’t wait until the owner does their walkthrough to discover that the bar top has a scratch, the kitchen hand sink doesn’t have hot water, or the restroom door closer needs adjustment.

Assign every punch item to a specific person with a completion date. Track it in your project management system, not on a legal pad. For tips on handling this final push, check out our construction project management guide which covers punch list best practices in detail.

Warranty and Post-Opening Support

Restaurant construction generates more warranty calls than most commercial projects because the equipment density and the intensity of use expose any installation shortcomings quickly. A kitchen that runs 14 hours a day, six days a week will find every loose connection, every improperly pitched drain, and every undersized circuit within the first month.

Define your warranty scope clearly in the contract. You’re responsible for your workmanship and installation. You’re not responsible for equipment failures (that’s the manufacturer and the equipment supplier), owner abuse, or normal wear and tear. A loose drain fitting that was never properly tightened is on you. A faucet that fails because the dishwasher runs it 200 times a day is the manufacturer’s problem.

Respond to warranty calls promptly, especially in the first month after opening. A restaurant with a plumbing problem during dinner service can’t wait three days for you to send someone. The contractor who shows up within hours when there’s a real problem earns the owner’s loyalty and the next project.

Second-Generation Restaurant Spaces: Hidden Savings and Hidden Traps

Taking over a space that was previously a restaurant sounds like a shortcut, and sometimes it is. But second-gen spaces come with their own category of problems that catch contractors off guard. Understanding how to evaluate what’s actually reusable versus what needs to be ripped out and replaced is the difference between a profitable fast-track project and a money pit disguised as a head start.

What You Can Actually Reuse

The biggest potential savings in a second-gen space come from infrastructure that’s already in place and still meets code:

Grease interceptor. If the previous restaurant had an exterior grease trap that’s still in good condition and properly sized for the new operation, you just saved $10,000 to $25,000 and weeks of excavation work. Have it pumped and inspected before you assume it’s usable. Cracked vaults, collapsed baffles, and corroded inlet pipes are common in older installations. Get the health department to confirm the sizing is adequate for the new kitchen’s fixture count before you build your budget around reusing it.

Electrical service. If the existing service is 600 amps and the new concept needs 400, you’re in good shape. But verify the panel condition, the wire sizing on existing circuits, and whether the previous tenant pulled proper permits for their electrical work. Unpermitted electrical modifications are surprisingly common in restaurant spaces, especially in buildings that have turned over multiple times. Your electrician should do a thorough evaluation, not just check that the lights turn on.

Exhaust hood and ductwork. A properly sized and maintained hood system is one of the most expensive single items in a kitchen build-out. If the existing hood covers the new kitchen layout and the ductwork is clean welded stainless in good condition, reusing it saves significant money. But the hood needs to be professionally cleaned, the fire suppression system needs to be re-certified for the new equipment layout (nozzle positions may need to change), and the make-up air system needs to be verified for the new exhaust volume. Don’t assume the old system works for the new concept without engineering review.

Walk-in cooler and freezer. Walk-in boxes that are structurally sound with good door seals and functional refrigeration can be reused. Have a refrigeration tech inspect the compressor, evaporator, and controls before the owner commits to keeping them. A walk-in that dies three months after opening is the owner’s problem, but they’ll blame you for telling them it was fine to reuse.

Floor drains and underground plumbing. If the floor drains are in usable locations for the new layout and the underground piping is in good condition, you avoid the most disruptive part of a kitchen plumbing rough-in: cutting and repairing the slab. Camera the drain lines to verify condition before you plan around them.

What Almost Always Needs Replacing

Fire suppression system. Even if the hood is reusable, the wet chemical suppression system needs to be evaluated for the new equipment layout. If the cooking equipment under the hood changes (different positions, different types), the nozzle locations and coverage patterns change. Most fire protection contractors will recommend a new system rather than modifying an old one, and the fire marshal will want a fresh certification regardless.

Kitchen finishes. FRP panels, quarry tile, and stainless steel from the previous tenant are almost never in good enough condition to pass a health department inspection for a new restaurant. Grease staining, cracked tile, damaged cove base, and worn FRP are cosmetic issues that become code issues when the health inspector walks through. Budget for new kitchen finishes even in a second-gen space.

Plumbing fixtures. Three-compartment sinks, hand wash sinks, and faucets from the previous tenant are generally not worth reusing. They’re inexpensive relative to the total project cost, they wear out quickly in commercial use, and the health department will scrutinize them closely. New fixtures are a small price for a clean inspection.

Gas piping configuration. Unless the new kitchen layout happens to place gas equipment in exactly the same locations as the old layout, the gas piping needs to be modified. Gas work requires permits and inspection regardless of whether it’s new or modified, so the cost savings of partial reuse are minimal.

The Landlord Factor

In second-gen spaces, the landlord’s lease terms significantly affect your scope. Some landlords require the outgoing tenant to return the space to shell condition, which means the “second-gen” advantage disappears. Others leave the previous build-out in place but won’t guarantee the condition of any systems. And some landlords actively misrepresent what’s included or functional.

Get into the space with your subs for a thorough evaluation before the owner signs the lease if possible. A two-hour walkthrough with your plumber, electrician, and HVAC contractor can identify whether the existing infrastructure is actually an advantage or just a demolition scope that the landlord is passing off as a feature.

Common Inspection Failures and How to Prevent Them

Failed inspections are the number one schedule killer on restaurant build-outs. Each failure means a re-inspection wait (sometimes a week or more in busy jurisdictions), idle crews, and an owner who’s watching their opening date slip. Most inspection failures are preventable if you know what inspectors are looking for and you check before they do.

Health Department Failures

Missing or improperly located hand wash sinks. This is the single most common health department failure. The code requires hand wash sinks accessible to food handlers within a specific distance (usually 25 feet) of any food prep or cooking area. The sink must be dedicated to hand washing only, not shared with food prep. It needs hot and cold water, soap dispenser, and paper towel dispenser. Contractors who are used to office or retail work routinely undercount hand wash sinks on restaurant plans.

Inadequate hot water capacity. The health department will check water temperature at the three-compartment sink and the dishwasher during the final inspection. If your water heater can’t maintain 120°F at the sinks and 140°F at the dishwasher during simultaneous use, you fail. Size the water heater for peak demand, not average demand. A busy restaurant running the dishwasher continuously while prep cooks are using the three-compartment sink needs serious hot water capacity.

Floor and wall finish deficiencies. Gaps in FRP panels, cracked quarry tile, missing cove base, and unsealed penetrations through kitchen walls are all inspection failures. The health department is looking for surfaces that can be cleaned and sanitized with no gaps where food particles or pests can hide. Every penetration through a kitchen wall (pipes, conduit, ductwork) must be sealed smooth and flush.

Improper food storage. All shelving in walk-in coolers, dry storage, and freezers must be at least six inches off the floor. Wire shelving is preferred because solid shelves can trap moisture and debris. Chemical storage (cleaning supplies) must be physically separated from food storage, typically in a different area or a clearly designated section with a physical barrier.

Cross-contamination pathways. The health department reviews the “flow” of food through the kitchen: receiving, storage, prep, cooking, plating, and service. The layout should minimize situations where raw food crosses paths with cooked food. If your kitchen layout creates obvious cross-contamination risks, the inspector will flag it even if the individual fixtures and finishes are compliant.

Building Department Failures

Occupancy load and egress. The building department calculates occupancy load based on the use of each area (dining at 15 sq ft per person, bar standing at 5 sq ft per person, kitchen as non-occupant space). The exit capacity must accommodate the total calculated occupancy. Restaurants that try to maximize seating sometimes exceed the occupancy load that the exits can support. Exit signs, emergency lighting, and panic hardware on exit doors are also common failure points.

ADA deficiencies. Accessible route widths, restroom clearances, and fixture heights are measured during the final inspection. A restroom that’s one inch too narrow for the required wheelchair turning radius fails. Measure twice during construction, not during the inspection.

Fire-rated assemblies. Kitchen exhaust duct penetrations through fire-rated walls and ceilings need proper fire-rated protection. This is an area where the building inspector and fire marshal both have jurisdiction, and both will check it.

Fire Marshal Failures

Hood suppression certification. The fire marshal wants to see the suppression system installation certificate from a licensed contractor, the system test documentation, and proper signage. If the certification isn’t ready when they show up, you fail the inspection even if the system is physically installed and functional.

Gas shutoff integration. The suppression system must automatically shut off gas to all cooking equipment when it activates. The fire marshal will verify this integration during the inspection. If the gas shutoff isn’t properly connected and tested, it’s a failure.

Exit path obstructions. Equipment, supplies, or construction materials blocking exit paths are an immediate failure. Clear the exit paths completely before the fire marshal inspection, and make sure the owner hasn’t started staging tables, chairs, or supplies in the exit corridors.

Pre-Inspection Checklist Strategy

Build a pre-inspection checklist for each agency and walk it yourself (or have your superintendent walk it) at least two days before the scheduled inspection. Fix everything you find. Then walk it again the day before. This double-check approach catches the items that get fixed incorrectly or new issues that appear between your first walk and the inspection.

A failed inspection isn’t just a schedule problem. It damages your reputation with the inspector and the permitting office. Contractors who pass inspections on the first attempt get faster service on future projects because inspectors trust that their work is done right. Track your inspection scheduling and results so nothing falls through the cracks on these multi-agency projects.

Outdoor Dining and Patio Construction

Outdoor dining went from a nice-to-have to an essential revenue driver over the past few years, and most new restaurant concepts include some form of exterior seating. For contractors, patio build-outs add a layer of scope that’s easy to underestimate because it looks simple on the surface. A patio is not just a slab with some furniture on it.

Permitting and Zoning

Outdoor dining areas often trigger zoning reviews that indoor construction doesn’t. Setback requirements, property line proximity, noise ordinances, and parking calculations can all be affected by adding outdoor seating. If the outdoor area increases the restaurant’s total occupancy, the parking requirement increases, which can be a deal-breaker on tight commercial sites.

Some municipalities require a separate outdoor dining permit beyond the building permit. Others include it in the overall plan review. Sidewalk seating on public rights-of-way has its own permitting process entirely, usually through the city’s public works department rather than the building department. Don’t assume the building permit covers exterior work without verifying.

Structural and Site Work

A patio that supports commercial dining needs a proper foundation. A four-inch residential-grade slab won’t hold up to commercial furniture, foot traffic, and the occasional delivery truck that cuts through the patio area. Design the slab for commercial loading with appropriate thickness, reinforcement, and subgrade preparation.

Drainage is critical. A patio that puddles after every rain makes half the seats unusable and creates slip hazards. Grade the slab away from the building with adequate slope (typically 1/4 inch per foot minimum) and provide drainage at the low end. In cold climates, freeze-thaw cycles will destroy a poorly drained patio within a few seasons.

If the patio includes a roof structure or pergola, verify that it doesn’t trigger additional building code requirements for the space underneath. A solid roof over an outdoor dining area can reclassify the space as an interior room in some jurisdictions, which changes the ventilation, egress, and finish requirements completely.

Utilities for Outdoor Service

Outdoor dining areas need more infrastructure than most owners realize:

• Electrical. Outlets for heat lamps, string lighting, fans, and POS stations. Outdoor-rated boxes and GFCI protection throughout. If the patio has a TV or music speakers, add those circuits too.
• Lighting. Adequate lighting for dining (not just ambiance) plus egress lighting at exits and walkways. Landscape lighting for the perimeter is a common owner request that gets added late.
• Heating. In cooler climates, gas or electric patio heaters extend the usable season. Gas heaters need a gas line run to the patio, properly sized and with accessible shutoff valves. Electric heaters need dedicated high-amperage circuits. Either way, plan the infrastructure during rough-in, not as an afterthought.
• Sound system. Outdoor speakers for music. The owner will want them. Run the low-voltage during rough-in.
• Plumbing. A hose bib for patio cleaning at minimum. If there’s an outdoor bar or food service station, the plumbing scope expands significantly with hot and cold water, drainage, and potentially a separate grease connection.

Enclosures and Seasonal Considerations

Many restaurants want the option to enclose the patio seasonally with roll-down panels, retractable glass walls, or removable enclosures. These systems have building code implications. A fully enclosed patio may need HVAC, fire protection, and code-compliant egress that an open patio doesn’t require. Check with the building department before the owner invests in an enclosure system that triggers $50,000 in additional mechanical and fire protection work.

Wind screens, planters, and railings that define the patio edge also have code requirements for height, strength, and accessibility. Railings adjacent to a grade change need to meet guard requirements. The building department will check these during the final inspection.

Technology and Low-Voltage Planning for Modern Restaurants

Ten years ago, low-voltage planning on a restaurant project meant a few phone lines and maybe a data drop for the office computer. Today, the technology requirements in a modern restaurant are significant, and contractors who plan for them during rough-in save the owner thousands in post-opening retrofit costs.

POS Infrastructure

Modern point-of-sale systems are the nerve center of a restaurant’s operations, and they need a solid infrastructure backbone. Most POS platforms are now cloud-based, which means reliable internet connectivity is critical. Plan for:

• Dedicated internet connection. A business-grade connection with a service level agreement, not the cheapest cable package. The restaurant’s revenue stops flowing if the internet goes down and the POS can’t process payments.
• Network closet or rack. A secure, ventilated location for the router, switch, and any on-premise POS server hardware. This space needs dedicated electrical (on its own circuit, ideally on a UPS) and adequate ventilation to prevent overheating.
• Structured cabling. Cat6 or Cat6A to every POS station, office workstation, back-of-house printer, and any location where a network-connected device will live. Wireless is convenient for tablets, but hardwired connections are more reliable for primary POS stations and kitchen display screens.
• POS station power. Each POS station needs a dedicated outlet or group of outlets for the terminal, receipt printer, and cash drawer. Plan positions during the design phase so you’re not surface-mounting conduit to a finished bar top.

Kitchen Display Systems

Many restaurants have replaced paper ticket printers with kitchen display screens that show orders digitally. These screens need data connections and power at specific locations in the kitchen, typically mounted above the expo line and at each cooking station. The screens need to be visible from the cook’s working position and protected from heat, grease, and steam. Plan the mounting locations and run the wiring during rough-in, not after the kitchen finishes are installed.

Security and Cameras

Restaurant owners increasingly want camera coverage of the dining room, bar, kitchen, back door, and cash handling areas. A basic system might have 6 to 12 cameras, each needing a network cable run to the NVR location. Plan the camera positions during design, and run cables during rough-in when the walls are open. Retrofitting camera cables through finished walls and ceilings is expensive and ugly.

If the jurisdiction requires cameras as part of the liquor license (some do), the system specifications may be dictated by the licensing authority. Get those requirements early so you install the right system the first time.

Music and Audio

Background music is standard in every restaurant, and the audio system ranges from a simple Bluetooth speaker (which you don’t need to plan for) to a multi-zone commercial system with ceiling-mounted speakers, a mixer, and separate volume controls for the dining room, bar, patio, and restrooms. Run speaker wire to planned ceiling locations during rough-in. A well-organized project management approach helps you track these low-voltage items alongside the major trades so nothing gets missed in the walls.

Digital Signage and Menu Boards

Fast-casual and quick-service restaurants often use digital menu boards that need power and data connections at specific mounting locations above the counter. Full-service restaurants may have digital displays in the entry or bar area for menus, event promotions, or sports programming. Each display location needs an outlet and a data drop, and the mounting hardware may need structural backing in the wall if the displays are large and heavy.

Future-Proofing

Pull a few extra cable runs to likely expansion points. The cost of adding two or three spare Cat6 runs during rough-in is minimal compared to opening walls later. Common future needs include additional POS stations if the restaurant adds seating, a second bar area, or kiosk ordering. An empty conduit from the network closet to the dining room ceiling gives the owner a path for future technology additions without tearing into finished surfaces.

When you’re tracking all these low-voltage details alongside your major scope items, having everything in one place matters. Tools like Projul’s project management platform let you organize the entire scope, from underground plumbing to speaker wire locations, so your subs know exactly what’s expected and when.

Pulling It All Together

Restaurant and bar build-outs are demanding, complex, and among the most rewarding commercial projects a contractor can take on. The key to profiting from this work is preparation: thorough site assessments, accurate estimates built from real equipment specs, schedules that account for the multiple inspection agencies involved, and communication systems that keep the owner informed without letting them derail your process.

The contractors who build a reputation in hospitality construction do it by understanding that these projects have unique requirements that standard commercial experience doesn’t fully prepare you for. Health department codes, kitchen ventilation engineering, grease waste systems, and the intensity of the owner relationship all demand specific knowledge and systems.

Invest the time to learn the codes, build relationships with inspectors, develop accurate estimating templates, and put project management systems in place that can handle the coordination demands. The payoff is a niche with strong demand, high project values, and a referral network that keeps your pipeline full.

For a deeper look at transitioning into commercial work, read our guide on moving from residential to commercial construction. And if you’re ready to tighten up your project management for demanding commercial projects, see how Projul works for contractors like you.