To get an occupancy permit, you apply to your local building department, submit your approved plans and permit records, pay the application fee, and pass a final inspection covering the building’s structural, electrical, plumbing, mechanical, and fire safety systems. Once the inspector signs off, the building official issues the certificate of occupancy (CO), and you can legally move in or open for business. The exact fees and forms vary by jurisdiction, but the sequence is the same almost everywhere because most local codes follow the International Building Code.
When You Actually Need One
The International Building Code prohibits occupying a building, or changing how it’s occupied, without a certificate of occupancy from the local building official.1UpCodes. Change of Occupancy In practice, that covers four situations:
- New construction, whether a single-family home or a commercial complex.
- Major renovations that alter a building’s structure, fire safety systems, or means of exiting. Cosmetic work like painting or replacing flooring typically does not trigger a new CO.
- A change of use, such as converting a residential property to commercial space or a warehouse to a restaurant.1UpCodes. Change of Occupancy
- Extended vacancy, in jurisdictions that require a re-occupancy inspection after a prolonged empty period.
Work that’s exempt from building permits generally doesn’t require a CO either.1UpCodes. Change of Occupancy What counts as permit-exempt varies, but it usually means minor repairs and cosmetic changes that don’t touch structural or safety systems. Older buildings constructed before modern code requirements took effect may never have had a CO, and that isn’t necessarily a problem. If you can’t find one for an older property, ask the building department whether one was ever required; they can often issue a letter confirming the legal status based on their records.
Who Files the Application
On new construction, the general contractor usually handles the CO application because they pulled the building permits and coordinated the work. For renovations on an existing home, the property owner is often the applicant, though a contractor or construction manager can file on the owner’s behalf. Whoever applies needs to be available for the required inspections and to have the project documentation on hand.
If you’re buying, the seller is generally responsible for delivering the property with a valid CO at closing. Open permits or a missing CO can become your problem once you take ownership, so verify the status before you commit.
What to Submit With the Application
Documentation
You need to prove your project was properly permitted and built to plan. Expect to provide the approved building plans, records of all construction permits pulled for the project, and any specialized reports such as environmental testing for lead or asbestos in older buildings. For larger or more complex projects, the building department may also want signed certifications from the architect or engineer of record confirming the finished work matches the approved design.
The application form itself asks for the property address, a description of the project scope, information about the contractors who performed the work, and permit numbers for all previously completed phases. Missing pieces slow the process down, so review your local building department’s checklist before you file.
Fees
Application fees typically depend on building type, intended use, and square footage. Base fees for residential properties generally run from around $150 to a few hundred dollars, with commercial projects and higher occupant loads paying more. Many jurisdictions also charge re-inspection fees if the property fails and needs a follow-up visit. Check your local fee schedule before applying.
How to File
Most building departments accept applications online, in person, or by mail. Online portals are the standard in larger jurisdictions, and they often let you track application status and schedule inspections. Some jurisdictions require full payment upfront; others bill after initial review.
The Final Inspection
After the application is accepted, the building department schedules a final inspection. An inspector visits the property to verify that everything matches the approved plans and meets code. Each of these systems has to pass on its own:
- Structural: framework, foundation, and load-bearing elements.
- Electrical: wiring, panels, outlets, and grounding.
- Plumbing: water supply, drainage, and fixtures.
- Mechanical: heating, ventilation, and air conditioning.
- Fire safety: smoke detectors, alarm systems, sprinklers where required, fire-rated assemblies, and adequate exits.
In many jurisdictions, fire safety inspections are handled by the fire department rather than the building department, which means you may need sign-offs from two separate agencies before the CO can issue.
If everything passes, the building official issues the CO. The document lists the building permit number, property address, the approved use and occupancy classification, the type of construction, the design occupant load, and whether a sprinkler system is installed.2UpCodes. Section 111 Certificate of Occupancy Keep it safe. You’ll need it for real estate transactions, insurance, and any future permit applications.
If the inspector finds deficiencies, you get a detailed report of what needs to be corrected. You fix the issues and schedule a re-inspection. The cycle repeats until the property passes, and each re-inspection typically carries its own fee.
Why Inspections Fail
Most failed inspections come down to a short list of recurring problems. Catching them before you request the final visit saves fees and weeks of delay.
- Code violations such as improper electrical wiring, inadequate fire exits, insufficient ventilation, or missed accessibility requirements.
- Incomplete work. Every system has to be fully installed and functional. Missing handrails, uninstalled smoke detectors, or unfinished flooring will fail you.
- Outstanding permits. All permits associated with the property must be closed and approved before a CO can issue. If a previous owner pulled a permit for earlier work and never scheduled the final inspection, that open permit can block your application.
- Deviations from approved plans. Work that doesn’t match the plans on file fails even when the construction is technically sound. If you changed anything during the build, get an approved plan revision before the final inspection.
The outstanding-permits problem catches people off guard most often because it can involve work done years ago by someone else. Before starting a project, ask the building department to check the property for open permits.
When You Need to Move In Before Everything’s Finished
If the building is safe enough to occupy but still has minor unresolved items, the building official can issue a temporary certificate of occupancy (TCO) instead of making you wait for full completion.2UpCodes. Section 111 Certificate of Occupancy A TCO lets you occupy the space while the remaining work gets done.
The building official sets the period during which the TCO remains valid.2UpCodes. Section 111 Certificate of Occupancy In practice, that’s often around 90 days, though the exact duration varies. If you haven’t resolved everything by the expiration date, you can usually apply for a renewal. A TCO isn’t a substitute for finishing the work; it’s a bridge that keeps you occupying the space while the punch list gets cleared.
TCOs are common on large commercial projects where items like landscaping, signage, or cosmetic finishes are still pending. They’re less common on single-family homes, where the scope is usually small enough to finish before the final inspection.
Checking a CO on an Existing Property
If you’re buying, renting, or taking over a lease, verify the CO status before you commit. Start with the local building department. Most maintain records of every CO and permit issued for a given address. Many larger jurisdictions offer online portals where you can search by address and pull the full permit history, including whether a CO was issued and what occupancy classification it establishes. Smaller jurisdictions may require a phone call or in-person visit.
A CO generally does not expire. It stays valid as long as the building continues to be used for the purpose stated on the certificate. What invalidates it is a change in use, a major alteration, or damage severe enough to require substantial reconstruction. If any of those happen, a new CO is required before the building can be reoccupied.