What a building permit office does and where to find yours
Your city's building permit office is the department that reviews plans, issues permits, and inspects construction work to make sure it meets local building codes. They are the people you contact before you start any renovation, addition, new construction, or major repair on a property in your city. The office is usually part of the planning or development services department at city hall, though some cities call it the building department, development services, or code enforcement office.
Finding your specific office starts with your city's website. Search for "[your city name] building permit" or "[your city name] development services" — most cities list the office address, phone number, and hours on a dedicated page. If your city has a 311 line or general information number, they can tell you the exact department name and location. Some cities have multiple offices by neighborhood or district, so confirm you have the right location for your address before you go.
The building permit office is separate from the planning board or zoning board, though they often work together. The permit office handles the technical review of how you will build; the planning or zoning board handles whether you are allowed to build what you want on that lot. You may need approval from both, and the order matters — usually you get zoning approval first, then explore for the permit.
Key Takeaways
- Your building permit office is usually listed on your city's website under planning, development services, or building department, and you can call 311 or the main city line if you cannot find it.
- You need a permit before starting renovation, addition, new construction, or major repair work; starting without one can result in fines, forced removal of the work, or problems when you sell.
- The permit office reviews your plans against local building codes, issues the permit if they approve, and sends inspectors to check the work at specific stages.
- Most cities charge a permit fee based on the project cost or scope, and the fee does not change based on how long the permit takes to review.
- You can usually submit plans online, by mail, or in person, and most offices post their current review times on their website so you know how long approval will take.
What projects need a permit and what does not
Most cities require a permit for any structural work, electrical work, plumbing work, or work that changes the footprint or use of a building. This includes additions, new construction, roof replacement, foundation repair, moving walls, installing a new bathroom or kitchen, rewiring, replacing the HVAC system, and adding windows or doors. The rule is usually: if the work changes the structure, systems, or size of the building, you need a permit.
Work that typically does not need a permit includes interior painting, replacing fixtures (like faucets or light fixtures) with the same type, patching drywall, replacing flooring in kind, and minor repairs. Some cities allow small projects like a single-room addition under a certain square footage or a deck under a certain height to use a simplified permit process. The safest approach is to call your permit office and describe the work — they can tell you in one call whether you need a permit, and that conversation is free.
If you are unsure and proceed without a permit, the risk is real. An inspector can order you to stop work, require you to remove what you built, fine you, or all three. When you sell the house, a title search or home inspection may uncover unpermitted work, and the buyer can demand you fix it or reduce the price. Getting the permit retroactively is usually more expensive and time-consuming than getting it before you start.
How to submit plans and what documents you need
Before you submit to the permit office, you need a set of plans that shows what you are building. For small projects like a deck or a single-room addition, you may be able to use a straightforward sketch with dimensions and materials listed. For larger projects, you will need a full set of architectural or engineering drawings that show the existing building, the proposed work, electrical and plumbing layouts, and how the work meets local codes. Many permit offices post a checklist on their website that tells you exactly what drawings and documents they need.
Required documents almost always include a completed permit process form (available on the city website), proof of property ownership or authorization from the owner, and a site plan showing where the work will happen on the lot. For electrical, plumbing, or HVAC work, you need a licensed contractor's signature on the plans in most cities. Some cities require proof that you have notified neighbors, a copy of your contractor's license and insurance, or a letter from a structural engineer if the work affects the foundation or load-bearing walls.
Most cities now accept submissions online through a portal on their website, though some still accept paper copies by mail or in person. The online route is usually faster because the office can track your process and send you messages about missing documents without delay. Check your city's website for the submission method and the current review time — this varies from one week to several months depending on how busy the office is and how complete your plans are.
Permit fees and how long review takes
Permit fees vary widely by city and by project type. Most cities charge a base fee plus an amount that scales with the project cost or square footage. For example, one city might charge $150 plus $5 per $1,000 of construction cost; another might charge $300 plus $2 per square foot. A few cities charge a flat fee regardless of project size. Your city's permit office website should list the fee schedule, or you can call and ask for an estimate based on your project scope.
The fee is set when you submit and does not change if the review takes longer than expected. You pay it upfront or when you pick up the permit, depending on your city's process. Some cities refund part of the fee if you abandon the project before the review is complete, but this varies — ask when you submit.
Review time depends on how busy the office is and how complete your plans are. Most cities post their current average review time on their website — this might be two weeks for a straightforward project or three months for a complex one. If your plans are incomplete or do not meet code, the office will send you a list of corrections, and the clock restarts when you resubmit. Hiring an architect or engineer to prepare the plans correctly the first time usually speeds up the process, even though it costs more upfront.
Inspections during and after construction
Once you have a permit, you can start work. The permit office will send inspectors to check the work at specific stages — usually after the foundation is poured, after framing is complete, after electrical and plumbing rough-in, and after final completion. You must call the permit office to request an inspection before you cover up the work; if you cover it without inspection, you may have to tear it open again for the inspector to see it.
The inspector checks that the work matches the approved plans and meets the local building code. If something does not pass, the inspector will tell you what needs to be fixed and when they will return to re-inspect. Most inspectors are reasonable about minor issues and will give you time to correct them. If the work is significantly different from the plans or does not meet code, you may have to hire a contractor to fix it or explore for a variance (a formal exception to the code).
Once all inspections pass and the work is complete, the permit office issues a certificate of completion or certificate of occupancy. Keep this document — you will need it if you sell the house or explore for a mortgage. Some cities mail it automatically; others require you to request it after the final inspection passes.
What to do if your permit process is denied or delayed
If the permit office denies your process, they must tell you why in writing. Common reasons include the work does not meet zoning rules, the plans do not meet building code, or you do not have the required documents. You have options: you can revise the plans to address the issue and resubmit, you can request a meeting with the permit office to discuss alternatives, or you can explore for a variance from the zoning board or planning board (a formal request for an exception to the rules).
If your process is delayed beyond the posted review time, call the office and ask for a status update. Sometimes applications get stuck because a document is missing or unclear, and a quick phone call can unstick it. If the delay is very long and the office cannot explain it, you can file a complaint with your city council or the mayor's office, though this is rare and usually a last resort.
Some cities have an expedited review process for a higher fee, or they allow you to pay for a third-party plan reviewer to check your work before you submit to the city. These options cost more but can save time if you are on a tight schedule.
Working with contractors and the permit office
If you hire a contractor, they usually handle the permit process and inspections on your behalf. Make sure this is in your contract — some contractors include it in their bid, and others charge a separate fee. A good contractor knows the local codes and the permit office staff, which can speed up the process. They also know which inspections are required and when to call for them, so you do not have to track it yourself.
If you are doing the work yourself, you are responsible for getting the permit and calling for inspections. Some cities require that electrical, plumbing, and HVAC work be done by a licensed contractor even if you obtained the permit yourself. Check your local rules before you start. If you do the work yourself and it does not pass inspection, you will have to hire a licensed contractor to fix it, which usually costs more than doing it right the first time.
Whether you use a contractor or do the work yourself, keep copies of the permit, all inspection reports, and the certificate of completion. These documents prove the work was done legally and to code, which matters when you sell or refinance.
Frequently Asked Questions
Do I need a permit for a small deck or shed?
Most cities require a permit for any structure attached to the house or over a certain size (often 100 to 200 square feet). A detached shed or deck may or may not need one depending on its size and your city's rules. Call your permit office with the dimensions and they will tell you in one call whether you need a permit.
What happens if I start work without a permit?
An inspector can order you to stop, require you to remove the work, and fine you. When you sell, the buyer's inspector or lender may find unpermitted work and demand you fix it or reduce the price. Getting a retroactive permit is usually more expensive and harder than getting one before you start.
How long does it take to get a permit?
Review time varies by city and project complexity. Most cities post their current average review time on their website — this might be two weeks for a straightforward project or three months for a complex one. Incomplete or non-code-compliant plans will take longer because you have to revise and resubmit.
Can I start work while my permit is being reviewed?
No. You must wait until the permit office issues the permit before you start any work. Starting before approval can result in fines and orders to stop or remove the work, even if the permit is eventually approved.
What if the inspector fails my work?
The inspector will tell you what needs to be fixed and when they will return to re-inspect. You have time to make corrections, though the timeline depends on the severity of the issue. If the work is significantly different from the approved plans, you may need to explore for a variance or hire a contractor to bring it into compliance.