San Francisco's Building Safety: The Rules That Matter

Every city handles building safety a little differently. In San Francisco, California, there are 8 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Lead Paint

San Francisco's Health Department declares any inspected dwelling unit with lead hazards a nuisance and can order the owner to remediate within 14 to 30 days.

Key details: Trigger: Inspection finds lead hazard, §1626. Standard deadline: 14 days to substantially complete. Extended deadline: 30 days if permits/contractors needed. Inspection fee: $85 per hour of DPH staff time. Max civil penalty: $500 per day of noncompliance.

Failure to comply risks civil penalties up to $500 per day (Sec. 1637(a)) or administrative penalties of $100/$200/$500 per day for first, second, and later violations within a year.

Compared to other cities, San Francisco takes a harder line on lead paint. The enforcement and penalty structure reflects that.

Building Inspections

San Francisco permitted construction must stay accessible and exposed until the Building Official approves it at each required stage, foundation through final inspection, and no work may advance past an uninspected checkpoint.

Key details: Governing section: Building Code § 108A. Job Card: Posted from permit issuance to final inspection. Structural framework: No concealment without prior approval (§ 108A.5.1). Concealed work order: Owner bears exposure cost. Final inspection: Required before occupancy.

Covering or concealing work before its required inspection is approved brings a stop-work order and can force the owner to expose the concealed work at the owner's expense. Reinspection fees apply when work is not ready at the called inspection or corrections have not been made.

Door Locking Hardware

San Francisco requires apartment and condo entry doors to have a combination deadlatch and deadbolt lock meeting specific throw dimensions under the Building Code's Chapter 10A security requirements.

Key details: Deadlatch throw: 1/2 inch minimum. Deadbolt throw: 1 inch minimum. Applies to: Apartments, condos (3+ units). Citation: SF Building Code § 1005A.4.1.

Installing entry doors that don't meet the deadlatch/deadbolt specifications is a Building Code violation; DBI can require the owner to retrofit compliant hardware before signing off on final inspection or certificate of occupancy.

Fire Sprinkler Requirements

San Francisco follows the state rule requiring automatic fire sprinklers in new one- and two-family homes and townhouses, but its local amendment exempts additions to existing homes that never had sprinklers installed.

Key details: Base rule: New R-3 homes need sprinklers. Local carve-out: SFBC § 903.2.8, exception 5. Covers: Townhouses, 1-2 family dwellings, ≤3 stories. Condition: Only if no system already installed.

Because Section 903.2.8's exception 5 only waives sprinklers for additions to homes that already lack them, new one- and two-family construction that skips required sprinklers under the referenced Residential Code sections is a Building Code violation subject to permit rejection or correction notice by the Department of Building Inspection.

Building Permits

San Francisco requires a building permit for reroofing work once it involves roof sheathing or covers more than 25 percent of the roof in any 12-month period, per Building Code Section 106A.2.

Key details: Governing section: SF Building Code § 106A.2(13). Exempt threshold: Under 25% of roof, no sheathing work. Permit required: Sheathing work or over 25% resurfaced. Issuing agency: Dept. of Building Inspection.

Reroofing without a required permit is unpermitted work under the Building Code, subject to stop-work orders, permit fees, and code enforcement penalties from the Department of Building Inspection.

Electrical Permits

San Francisco requires a Department of Building Inspection permit before any electrical installation, alteration, or repair, issued only to licensed contractors or homeowners under the Homeowner's Permit exception.

Key details: Permit required: Before any electrical installation or alteration. Issuing agency: Dept. of Building Inspection (DBI). Homeowner permits: Allowed for single-family dwelling, self-performed work. Penalty: Up to $500/day civil penalty. Emergency work: Permit required within 1 business day.

Violating any provision of the Electrical Code, including working without a permit, is a misdemeanor punishable by a fine up to $500 and up to six months in jail, or a civil penalty up to $500 per day (Section 89.125).

Plumbing Permits

San Francisco requires a permit and payment of Central Permit Bureau fees before most plumbing work can begin, under the local amendments to the Plumbing Code.

Key details: Permit fees due: Before permit issuance. Fixture swap exemption: No drainage/venting change. Separate fee per class: Sewers, gas, water. Adopting ordinance: Ord. 226-25, eff. Jan. 1, 2026.

Work performed without paying required permit fees can be denied final inspection, and violators are subject to a civil penalty of up to $500 per day plus possible misdemeanor prosecution under Section 106.3 of the Plumbing Code.

Elevator Maintenance

San Francisco requires at least one passenger elevator to stay in working order and accessible to the Fire Department at all times.

Key details: Minimum working elevators: At least 1 passenger elevator. Standard: Accessible for immediate Fire Dept use. When it applies: At all times. Governing code: SF Fire Code Section 604.5.5.

Building owners who let every elevator go out of service simultaneously are out of compliance with SFFD's elevator maintenance requirement and can be cited by the Fire Department during inspection.

The Bottom Line

San Francisco's building safety rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming San Francisco is broadly strict or permissive.

These rules come from San Francisco's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.