What happens if you build or remodel without a permit in San Francisco?

Homeowners often assume that quiet interior work won’t draw attention once the contractor’s truck leaves. In dense San Francisco neighborhoods, unpermitted work usually comes to DBI’s attention through one of four channels:

• Neighbor or tenant complaints through 311: Anyone can look up an address in the SF.gov Permit and Complaint Tracking System to see if an active building permit exists. When someone reports a problem, DBI says it sends an inspector to investigate within 72 hours (SF.gov guide to fixing a building code violation).
• Inspections: DBI can issue a Notice of Violation after an inspection, or when it needs to stop construction work (SF.gov NOV information). The Building Official can also order unpermitted work to stop (SFBC Section 104A.2.4).
• Future permit applications: DBI can also issue a Notice of Violation while a permit is being reviewed or processed (SF.gov NOV information). So a permit for a new project years later can bring older unpermitted work to light.
• Home sales: When a San Francisco home is sold, owners or realtors are legally required to give the buyer a Report of Residential Building Record (3R Report). The report costs $379 and lists the building’s authorized use and building permit history (SF.gov 3R Report page). Buyers can also look up the address in DBI’s online Permit and Complaint Tracking System.

SF.gov describes the enforcement process in these steps (SF.gov guide to fixing a building code violation):

1. Stop-work order: If construction is still underway, the Building Official can serve a written stop order under SFBC Section 104A.2.4. All work covered by the notice must stop immediately until DBI authorizes you to proceed.
2. Notice of Violation (NOV): If the inspector finds a violation, they write a Notice of Violation that describes it and the corrections you need to make. DBI posts the notice on the building and mails it to you. SF.gov lists 30 days to file the permit needed to fix the violation (SF.gov guide to fixing a building code violation). Anyone can follow the complaint in DBI’s online tracking system (SF.gov NOV information).
3. Follow-ups and monitoring fees: While the case is open, the inspector checks on progress about every 30 days (SF.gov guide to fixing a building code violation). While the case is open, DBI also charges a monthly violation monitoring fee under SFBC Table 1A-K.
4. Director’s Hearing: If you haven’t tried to resolve the violation and DBI doesn’t hear from you, it moves the case to a Director’s Hearing. DBI posts a Notice of Director’s Hearing on the building and sends it by certified mail. From this point, abatement fees add up until the problem is fixed (SF.gov guide to fixing a building code violation). The hearing itself is billed by the hour under SFBC Table 1A-K.
5. Order of Abatement and property lien: If the problem remains, the hearing officer issues a Director’s Order of Abatement. You can appeal it to the Abatement Appeals Board within 15 days. If you don’t win an appeal, DBI records the order at the Recorder’s Office and places it on the property’s land records. If you don’t fix the violation by the date in the order, DBI places a lien on the property (SF.gov guide to fixing a building code violation). Recording a lien adds its own charge (SFBC Table 1A-K). If a property accumulates more than 3 liens or orders, DBI refers the case to the City Attorney (SF.gov guide to fixing a building code violation).

San Francisco sets exact penalty multiples in SFBC Section 107A.5, Section 103A, and Section 110A, Table 1A-K. Every fee below is paid by the property owner on top of the normal plan-review and permit fees.

Paying the investigation fee does not close the case. You still have to follow the corrective actions on the Notice of Violation and get the site inspected (SF.gov NOV information).

To clear a Notice of Violation or voluntarily clean up unpermitted work you discovered on your property, DBI requires you to permit and inspect the work (SF.gov guide to fixing a building code violation). Not sure the work needed a permit at all? Start with our guide on when you need a building permit in San Francisco.

1. Read the Notice of Violation carefully: Note the violation description, the code sections cited, the assigned division (Building Inspection or Code Enforcement), and the compliance deadline (SF.gov NOV information).
2. Hire a designer, architect, or engineer if plans are required: Whenever the unpermitted work changed room layouts, added plumbing fixtures in a new location, altered framing, or converted space, you must submit existing and as-built drawings (SF.gov check if your permit needs plans). Under California B&P Code §5537 and B&P Code §6737.1, an unlicensed designer may draw conventional wood-frame work in a 1-to-4 unit building up to two stories plus a basement, while any non-conventional framing or structural alteration must be signed and stamped by a licensed architect or engineer (B&P Code §5537(b)). Our guide on architect vs. building designer in California explains who can draw which legalization plans.
3. File the permits the notice calls for: Your Notice of Violation tells you whether you need a permit to fix the violation and which permits you need. That can include separate electrical or plumbing permits (SF.gov guide to fixing a building code violation).
4. Open concealed work for field inspection: Inspectors can’t sign off what they can’t see, so you may need to open sections of drywall, tile, or subfloor to expose framing, plumbing, and wiring.
5. Pass final inspection to close the case: When the work is done, schedule a final inspection. If the violation is corrected, the inspector closes the case. You also have to pay any hearing and abatement fees before the case can close (SF.gov guide to fixing a building code violation).

If the unpermitted work is an unauthorized in-law unit or accessory dwelling unit that existed before Jan 1, 2013, San Francisco offers a voluntary unit legalization screening and permit pathway under SFBC Section 106A.3.1.3.

Unpermitted work also creates problems when you insure or sell the house. If a fire starts in unpermitted wiring or a pipe bursts in an unpermitted bathroom, your homeowner’s insurance carrier may dispute coverage for damage tied to non-compliant construction. When you sell a home in California, California Civil Code Section 1102.6 requires you to disclose whether you’re aware of room additions, structural modifications, or other alterations made without necessary permits. See our guide on selling or buying a house with unpermitted work in California for your options before listing.