Do I Need a Permit to Build a Deck in San Francisco, CA?

Interactive check

Check your deck details

Client-side only. No runtime backend required.

Fees

Estimated city fees

Baseline for a simple permitted deck: $500–$1,100 estimated combined fees (plan check + permit issuance) for a typical residential deck in San Francisco

Fee	Amount	Notes
Plan check fee	$350–$700 (estimated)	San Francisco DBI plan check fees are based on the valuation of the proposed work. A typical residential deck project ($15,000–$40,000 value) generates an estimated $350–$700 in plan check fees. Verify current amounts at sf.gov/information/building-permit-fees.
Permit issuance fee	$150–$400 (estimated)	The permit issuance fee is assessed upon approval and payment. Combined plan check and permit issuance fees for a typical residential deck typically run $500–$1,100.
State Strong Motion Instrumentation Program (SMIP) surcharge	0.013% of valuation	California assesses a SMIP surcharge on all permitted construction to fund the state's seismic monitoring network. On a $20,000 deck project, the SMIP surcharge is approximately $2.60. This is collected by DBI at permit issuance.

Documents

Required documents

SF Department of Building Inspection permit application, submitted via the DBI Online Permit Application (OPA) portal at aca-prod.accela.com/SFDBI or in person at 49 South Van Ness Avenue.
Site plan drawn to scale showing property lines, existing structures, proposed deck footprint, and distances from the deck to all property lines — required to confirm setback compliance with the SF Planning Code.
Architectural construction drawings including floor plan, elevations, and cross-section showing deck dimensions, height above grade, guardrail height and design, stair configuration, and materials.
Structural drawings complying with 2022 CBC (Title 24) seismic requirements, including: footing design for SDC D, post/beam/joist schedule, ledger connection details with hold-down hardware, and guardrail post connection details.
Soils report from a licensed geotechnical engineer if the lot is on a hillside, within a mapped landslide zone, or if DBI plan check requires one based on site conditions.
SF Planning Department clearance (over-the-counter or formal) confirming the deck complies with Planning Code setback, lot coverage, and open space requirements for the applicable zoning district.
Documentation of any Historic Preservation Commission approval if the property is on the SF Historic Resource Inventory or in a historic district.

Timeline

Typical timing

Plan review: 10–20 business days (standard); expedited review available in 3–5 business days for an additional fee
Total cycle: 6–10 weeks from application to final inspection

Hillside lots, soils report requirements, Planning Department clearance, or Historic Preservation review can extend the timeline significantly. Projects with correction rounds add additional review cycles.

Process

How the permit process works

Check Planning Department zoning and clearance requirements Before designing the deck, contact the SF Planning Department (sfplanning.org) to confirm setback requirements for your zoning district and whether the proposed deck location requires a variance or Administrative Exception. Use the SF Property Information Map (sfplanninggis.org) to identify zoning district, historic resource status, and any special use districts. Planning clearance is required before DBI can issue a building permit.
Determine hillside and soils report requirements Use the SF Seismic Hazard Zones map and DBI's hillside construction resources to determine if your lot is in a landslide zone or subject to SFBC Appendix R hillside construction requirements. If so, engage a licensed geotechnical engineer early — a soils report is required as part of the permit submission.
Prepare CBC-compliant drawings with seismic details Hire a designer, structural engineer, or licensed contractor familiar with both the 2022 California Building Code (CBC) Title 24 and San Francisco Building Code amendments. Drawings must include SDC D seismic details: footing sizes and reinforcement, hold-down hardware at ledger connections, anchor bolt spacing, and lateral bracing. SF plan checkers will flag missing seismic details.
Submit permit application through SF DBI OPA or in person Submit the permit application, drawings, and supporting documents through the SF DBI Online Permit Application portal (aca-prod.accela.com/SFDBI) or in person at 49 South Van Ness Avenue. Include all required documents: site plan, architectural drawings, structural drawings, Planning clearance, and soils report (if required). Pay the initial plan check fee at submission.
Address plan check comments and resubmit DBI plan checkers review submissions for compliance with the SFBC, 2022 CBC structural requirements, and seismic provisions. Correction notices are issued electronically; revise drawings per comments and resubmit through the OPA portal. Hillside or complex projects may require multiple review rounds.
Pay fees and receive the permit Once plan check is approved, pay the permit issuance fee and any remaining fees (including the SMIP surcharge). The permit card must be posted on-site and the approved drawings kept on-site during construction. Construction cannot begin before the permit is issued and posted.
Schedule DBI inspections and obtain final Request required inspections through the DBI inspection scheduling system. Required inspections for a deck typically include: footing inspection before concrete pour, rough framing inspection after all structural members are installed (but before covering), and final inspection. The final inspection closes the permit and records the completed work. DBI seismic and structural details are verified at framing.

Code basis

What San Francisco reviews against

2022 California Residential Code (CRC) / California Building Code (CBC) Title 24, as amended by the San Francisco Building Code (SFBC). San Francisco adopts the CBC with local amendments — SFBC amendments take precedence over base CBC provisions where they differ.

Residential permit page San Francisco permit portal

If you skip the permit

What can go wrong

SF Department of Building Inspection can issue a stop-work order requiring all construction to halt immediately. DBI may post a notice of violation on the property.
DBI can require demolition or correction of unpermitted work at the owner's expense, including removal of a completed deck if it cannot be brought into compliance through a post-construction permit.
California law (Civil Code Section 1102) requires sellers to disclose known unpermitted construction in real estate transactions — an unpermitted deck must be disclosed to buyers, which typically affects sale price and may require correction prior to close.
Decks built without seismic review in San Francisco's SDC D environment pose a genuine structural risk — uninspected ledger connections and footings may be inadequate for the seismic forces the structure will experience.
Title companies and lenders may flag unpermitted work in San Francisco, creating complications during property sales, refinancing, or home equity line applications.

FAQ

Common San Francisco deck permit questions

Do I need a permit to build a deck in San Francisco?

Yes — always. Any deck attached to the house requires a San Francisco DBI building permit regardless of size. There is no square-footage exemption for attached decks in San Francisco. Freestanding decks more than 30 inches above grade also require a permit. San Francisco enforces its building code strictly, and unpermitted work is subject to stop-work orders and mandatory correction.

What makes San Francisco deck permitting different from other cities?

Two factors make SF deck permitting especially involved: seismic requirements and hillside regulations. San Francisco is in Seismic Design Category D, meaning all permitted decks must include CBC-compliant seismic details — hold-down hardware at ledger connections, anchor bolt schedules, SDC D footing design, and lateral bracing. Projects on hillside lots are also subject to SFBC Appendix R (Hillside Construction) and may require a soils report from a licensed geotechnical engineer. Additionally, Planning Department clearance is required before DBI can issue a permit.

How much does a deck permit cost in San Francisco?

Estimated combined permit fees (plan check + permit issuance) for a typical residential deck in San Francisco run approximately $500–$1,100. Fees are based on project valuation; a higher-value deck will generate higher fees. A state SMIP surcharge (0.013% of valuation) is also assessed. Verify current fee amounts at sf.gov/information/building-permit-fees.

Do I need a soils report for my deck in San Francisco?

Not necessarily — but likely if your lot is on a hillside or in a mapped landslide zone. DBI and SFBC Appendix R (Hillside Construction) require a soils report from a licensed geotechnical engineer for projects in hillside terrain or on lots where soil conditions affect footing design. DBI plan checkers may also require a soils report based on site-specific conditions. Check the SF Seismic Hazard Zones map and consult DBI before preparing drawings.

What happens if I build a deck without a permit in San Francisco?

SF DBI can issue a stop-work order and require you to obtain a permit after the fact (an 'as-built' permit) or demolish the deck if it cannot be brought into compliance. There is also a penalty fee — typically 100% of the permit fee — for after-the-fact permits. California law requires disclosure of unpermitted work in real estate transactions, and unpermitted decks can affect property sales, title insurance, and financing.

Sources

Official links and freshness

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