Before a restaurant can open, most build-out and remodel work needs construction permits, and the finished space needs a certificate of occupancy. These are separate from your health and business licenses and are handled by your local building department. Requirements, fees, and timelines vary heavily by city and county, so always confirm the specifics with your local authority. The answers below explain how the pieces fit together.
A building permit is written approval from your local building department to construct, alter, or change the use of a space. Most restaurant projects need one because opening a food service space usually involves new walls, plumbing, electrical, ventilation, or a change of use from the prior tenant. The permit lets inspectors verify the work meets building, fire, and accessibility codes. Whether a specific project needs a permit, and how much it costs, varies by jurisdiction, so check with your local building department before you start any construction or demolition.
Usually yes, if you are building out or remodeling the space. Turning a vacant shell or a former retail store into a working kitchen and dining room almost always triggers permits for construction, plumbing, electrical, and mechanical work. Even a light remodel of an existing restaurant can require them. The main exception is taking over a space already permitted as a restaurant and making no physical changes, though you still need your own certificate of occupancy and licenses. Rules vary by jurisdiction, so confirm with your local building department.
In most places, yes. A certificate of occupancy is what allows you to legally use the space as a restaurant and open to the public. It is normally issued only after your build-out passes final building, electrical, plumbing, mechanical, and fire inspections. If you are taking over an existing restaurant, you may still need a new CO in your name or a change reflecting any alterations. Because requirements vary by jurisdiction, confirm what your local building department needs before you plan an opening date.
A building permit is permission to do the work; a certificate of occupancy is permission to use the finished space. You pull the building permit first, do the construction, pass inspections along the way, and then the building department issues the certificate of occupancy at the end. Think of the permit as covering the project and the CO as covering the result. Both are handled by your local building department, and the steps, fees, and timing vary by jurisdiction, so confirm the sequence locally.
Generally whenever you alter the structure, systems, or use of a space: adding or moving walls, running new plumbing or gas lines, changing electrical service, installing a kitchen hood, or converting a non-restaurant space to food service. Cosmetic work like painting or shelving often does not require a permit. Because the line between permit and no-permit work varies by jurisdiction, and some cities require permits for signs and equipment too, check with your local building department before starting any project.
Typically you or your contractor submit plans to the local building department, often prepared by an architect or engineer, showing the proposed layout, plumbing, electrical, mechanical, and accessibility details. The department reviews the plans, may request revisions, and then issues the permit once fees are paid. Work is inspected at stages as it progresses. Health department plan review often runs in parallel. Steps, required drawings, and fees vary by jurisdiction, so ask your local building department for its submittal checklist. See our permits and licenses guide for the wider approval process.
It varies widely, from a couple of weeks for a simple project in a small jurisdiction to several months for a full restaurant build-out in a large city with plan review backlogs. Timing depends on the complexity of your plans, how complete your submittal is, whether revisions are required, and the department's workload. Incomplete drawings are the most common cause of delay. Because timelines vary by jurisdiction, submit early and complete, and ask your local building department for its current review times when you apply.
Building permit fees vary heavily by jurisdiction and are often based on the value of the construction work, the square footage, or a fixed schedule, plus separate fees for plan review and each trade permit. A full restaurant build-out typically involves several permits and inspections that add up. There is no reliable national figure, so treat any single number with caution. Ask your local building department for its fee schedule, and budget for building, electrical, plumbing, mechanical, and sign permits separately when planning your project costs.
Usually yes if the remodel touches structure or systems: relocating equipment that needs new gas, water, or electrical connections, changing the hood or ventilation, moving walls, or altering plumbing. Swapping a like-for-like piece of equipment in the same spot may not require a permit, but changes that affect fire suppression, ventilation, or drainage almost always do, and often trigger health department plan review as well. Because rules vary by jurisdiction, check with your local building department before starting a kitchen remodel.
Often yes. Many jurisdictions issue a main building permit plus separate trade permits for electrical, plumbing, and mechanical (HVAC and ventilation) work, each pulled by a licensed contractor in that trade and inspected separately. A restaurant build-out usually involves all of these. Some smaller jurisdictions bundle them under one permit. Because how permits are split and who must pull them varies by jurisdiction, ask your local building department which trade permits your project needs and whether your contractors must be licensed to pull them.
Occupancy classification is how the building code categorizes a space based on how it is used; restaurants usually fall in an assembly classification because people gather there. A change of use happens when you convert a space from one classification to another, such as turning a retail store or office into a restaurant. That change often triggers stricter requirements for exits, restrooms, accessibility, and fire protection. Classifications and the upgrades they require vary by jurisdiction and code edition, so confirm the implications with your local building department.
Almost always. Converting retail or another use to a restaurant is a change of use that typically triggers building permits, plan review, and upgrades to plumbing, ventilation, grease handling, restrooms, exits, and accessibility. It also usually requires a new certificate of occupancy reflecting the restaurant use. This is one of the more involved and costly conversions in commercial construction. Because required upgrades vary by jurisdiction and by the existing building's condition, consult your local building department and often an architect before signing a lease on a non-restaurant space.
A sign permit is local government approval to install or modify a business sign, covering size, height, placement, lighting, and sometimes design. Cities regulate signs through zoning and sign codes to control appearance and safety, and many require a permit even for a modest storefront sign. Historic districts and some landlords add further restrictions. Fees and rules vary by jurisdiction, so before you order a sign, check your city's sign code and permit process, and confirm any limits in your lease with the landlord.
In most cities, yes, especially for permanent exterior signs, illuminated signs, or anything attached to the building or freestanding. Small window lettering or temporary banners may be exempt or have separate rules. Because sign regulations are set locally through zoning and sign codes, the size, height, brightness, and placement you are allowed vary by jurisdiction. Check with your city's planning or building department and factor sign permitting into your opening timeline, since it can take time to approve and fabricate.
Sign permit fees vary by jurisdiction and are often based on the sign's size, type, or valuation, sometimes with separate fees for electrical connection on illuminated signs. There is no reliable standard figure, and larger or lighted signs generally cost more to permit and install. Some cities also require a licensed sign contractor. Ask your city's planning or building department for its sign fee schedule, and get the sign company's fabrication and installation quote separately so you can budget the full amount.
No. Signs are regulated by local zoning and sign codes that limit size, height, number, illumination, and placement, and by your lease, which may set landlord or shopping-center standards. Historic districts and some overlay zones impose extra design rules. Putting up a non-compliant sign can lead to fines and a removal order. Because sign rules vary by jurisdiction, confirm what is allowed with your city's planning department and your landlord before designing or ordering a sign.
A temporary certificate of occupancy (TCO) lets you occupy or open a space before all work is fully complete, provided the building is safe for the intended use and only minor items remain. Some jurisdictions issue a TCO so a restaurant can open while punch-list items are finished, with a deadline to complete them and obtain the final CO. Not every jurisdiction offers one, and conditions vary, so ask your local building department whether a TCO is available and what must be done before it will be granted.
Occupancy load is the maximum number of people the building code allows in a space at once, calculated from floor area, use, and available exits. It matters because it drives requirements for exits, restrooms, and sometimes fire sprinklers, and it caps how many guests you can legally seat and serve. Exceeding the posted load is a code and fire safety violation. The exact calculation follows the adopted building and fire codes, which vary by jurisdiction, so confirm your approved occupancy load with your local building or fire department.
Your local building and fire officials set the maximum occupancy based on the building code, using the floor layout, use classification, and exit capacity. It is established during plan review and inspection and is often posted on a placard you must display. The fire marshal enforces it, especially in bars and assembly spaces. Because the calculation and posting rules follow the codes adopted in your area, which vary by jurisdiction, get your official occupancy figure from your local building or fire department rather than estimating it yourself.
For a restaurant build-out, often yes. Many jurisdictions require permit drawings to be prepared and stamped by a licensed architect or engineer once a project exceeds a certain size or complexity, and restaurants with commercial kitchens usually qualify. Simple projects may accept contractor-drawn plans. Because thresholds vary by jurisdiction, ask your local building department whether stamped plans are required. Even when not mandatory, a designer familiar with restaurant plan review can speed approval and help you avoid costly redesigns after submittal.
Typically a series of staged inspections tied to your permits: underground plumbing, rough electrical, rough plumbing, mechanical and ventilation, framing, fire suppression, and then final inspections for each trade before the certificate of occupancy. A separate health department inspection covers food-safety fixtures and finishes. Inspectors must approve each stage before work is covered up or the next stage proceeds. The exact sequence and which inspections apply vary by jurisdiction and project, so get the inspection schedule from your local building department when your permits are issued.
A final inspection is the last check the building department makes after all work under a permit is complete, verifying it matches the approved plans and meets code. Passing the final inspections for each trade, along with fire and health sign-offs, is normally what clears the way for your certificate of occupancy. If an inspector finds deficiencies, they issue a correction list and re-inspect after you fix the items. Because procedures vary by jurisdiction, confirm what your local building department requires before scheduling your final.
For commercial restaurant work, usually not. Most jurisdictions require licensed contractors to pull trade permits and perform electrical, plumbing, mechanical, and often general construction work in commercial buildings, and inspectors verify licensed work. Doing it yourself can void the permit, fail inspection, and create liability. Some minor work may be allowed under an owner's supervision, but commercial food service is rarely a do-it-yourself project. Because licensing rules vary by jurisdiction, confirm with your local building department who is allowed to perform and permit the work.
Unpermitted work can lead to stop-work orders, fines, and a requirement to open up finished work for inspection or tear it out and redo it. It can also block your certificate of occupancy, delay or void your health and business licenses, void insurance coverage, and create problems when you sell or transfer the lease. Correcting unpermitted work after the fact is usually more expensive than permitting it upfront. Because penalties vary by jurisdiction, always permit work before starting and consult your local building department if you inherit unpermitted work.
Often yes. Under federal accessibility law and local building codes, alterations to a commercial space generally must make the altered areas accessible, and larger remodels can trigger upgrades to entrances, restrooms, paths of travel, and seating. New construction must be fully accessible. How much you must do depends on the scope of work and local code interpretation, which vary by jurisdiction. Because accessibility is both a code and a civil-rights requirement, confirm the specifics with your local building department and, for larger projects, a design professional.
Almost always. Fire officials typically review plans and inspect for exits, emergency lighting, extinguishers, sprinklers, and especially the kitchen hood fire-suppression system, and many jurisdictions issue an operational fire permit for assembly occupancies. Fire sign-off is usually required before your certificate of occupancy and often renewed annually. Requirements vary by jurisdiction, so involve your local fire department early. Our guide on fire suppression systems explains what commercial kitchens generally need.
A Type I hood is the grease exhaust hood required over cooking equipment that produces grease and smoke, such as fryers, griddles, and ranges. Installing one is a mechanical project that needs a permit, plan review, and inspection, and it ties into fire suppression and make-up air. Whether your equipment requires a Type I hood depends on the cooking process and local code. Use our do I need a hood tool as a starting point, then confirm the requirement and permitting with your local building and fire departments.
Usually yes. Most jurisdictions require restaurants to install a grease interceptor or trap to keep fats, oils, and grease out of the sewer, and the installation needs a plumbing permit and inspection, sometimes with sizing approval from the local sewer or wastewater authority. Ongoing cleaning and record-keeping are often required too. Sizing rules and permitting vary by jurisdiction, so check with your local building department and sewer authority. Our grease trap sizing calculator can help you estimate the size you may need.
A demolition permit authorizes removing walls, structures, or major systems before you rebuild. Many jurisdictions require one when you gut a space or remove structural or system elements during a restaurant build-out, partly to ensure safe disconnection of utilities and proper handling of any hazardous materials. Light removal of non-structural fixtures may not need a separate permit. Because thresholds vary by jurisdiction, ask your local building department whether your demolition scope requires its own permit or is covered under the main building permit.
Start with a pre-application meeting or counter visit at your local building department, which can tell you the required permits, plan-review steps, and fees for your specific project and address. Also contact your health department for food-establishment plan review and your fire department for fire requirements. Your architect or general contractor can help identify everything. Because requirements vary by jurisdiction, do this before signing a lease so you understand the scope, cost, and timeline of getting the space approved.
Generally no. Opening to the public without a certificate of occupancy (or a temporary CO where allowed) is typically illegal and can bring fines, closure, and insurance problems. The CO confirms the space passed its inspections and is safe and legal to use as a restaurant. If your build-out is nearly done, ask whether a temporary certificate of occupancy is available in your area. Because rules vary by jurisdiction, confirm the requirement with your local building department and plan your opening around it.