How San Francisco Handles Permit Requirements: A Practical Guide

San Francisco maintains 203 local ordinances across all categories, and 4 of those deal specifically with permit requirements. Here is a breakdown of what the city actually requires, what is prohibited, and where San Francisco falls on the strict-to-permissive spectrum compared to other cities.

Shed & Outbuilding Permits

San Francisco requires permits for most accessory structures including sheds. The 120 sq ft exemption common in other cities is more limited in SF. DBI and Planning review may both be required. Permit fees vary by valuation.

Key details: Permit Required: Most sheds need permits. 120 sq ft Exemption: Limited in SF. Lot Coverage: Often at maximum. Penalty: Up to 9x permit fee.

Unpermitted structures: NOV from DBI, penalties up to 9x permit fee. May be required to remove.

Compared to other cities, San Francisco takes a harder line on shed & outbuilding permits. The enforcement and penalty structure reflects that.

Fence Permits

San Francisco requires permits for fences over 6 feet. Fences 6 feet and under in rear/side yards generally do not need a building permit but must comply with Planning Code. Section 311 notification may apply.

Key details: Front Max: 3 feet. Rear/Side Max: 6 feet. Permit Required: Over 6 feet. Section 311: May apply to taller fences.

Over-height fences: NOV and potential removal order. Building without required permit: penalties up to 9x fee.

Deck & Patio Permits

San Francisco requires building permits for most decks. New decks and deck enlargements trigger Section 311 neighborhood notification. Neighbors within 150 feet are notified and can appeal. DBI considers decks horizontal enlargements.

Key details: Permits: Required for most decks. Section 311: Neighbor notification required. Appeal Period: 30 days for Discretionary Review. Guardrails: 42 inches (CA code).

Unpermitted decks: NOV, penalties up to 9x permit fee. Neighbors can file complaints triggering enforcement.

This is not one of those rules that cities tend to ignore. San Francisco actively enforces its deck & patio permits requirements.

Renovation Permits

San Francisco requires permits for most renovation work beyond cosmetic changes. DBI and SF Planning both review permits. The process is complex and often requires professional help. Penalties for unpermitted work are up to 9x the permit fee.

Key details: Scope: Most work needs permits. Reviews: DBI + Planning (dual review). Penalty: Up to 9x permit fee. Historic: HPC review may apply.

Unpermitted work: fines up to 9x permit fee. Work must be exposed for inspection. DBI can order removal of non-compliant work.

This is one of the stricter rules in San Francisco's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

San Francisco is tougher than many cities when it comes to permit requirements. Out of the 4 rules covered here, 3 are rated strict. If you are a homeowner, renter, or business owner in San Francisco, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that San Francisco can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.