The specific permit, cost, licensing, and safety questions San Francisco homeowners ask before starting a remodel, ADU, or addition. SFDBI permits, the soft-story retrofit mandate, SFBC Title 24 (the strictest California energy code), CSLB contractor verification, Article 10/11 historic review, rent-control tenant rules, and 2026 pricing — all answered with SF specifics, not national averages.
Yes for almost any work beyond paint and finish swaps. The San Francisco Department of Building Inspection (SFDBI) issues residential permits through the Permit Center / Online Permit and Complaint Tracking system. Cosmetic-only swaps without electrical or plumbing changes are typically permit-exempt under SFBC. Plan-review for a kitchen runs 6-14 weeks — among the longest in the country, driven by SFBC strictness, plan-checker shortages, and concurrent Planning review. If your home is in one of SF's 11 designated Article 10 historic landmarks or 14 Article 11 Conservation Districts (Jackson Square, Northeast Waterfront, South End, etc.), Planning Department Historic Preservation review adds 4-12 weeks BEFORE building permits.
Mandatory Soft Story Program (Ordinance 66-13, expanded 2013) requires seismic retrofit of pre-1978 wood-frame buildings with 5+ residential units that have a soft, weak, or open-front (SWOF) ground floor — typically tuck-under parking. ~4,800 buildings citywide are subject. Tier 1 deadline was 2017, Tier 2 (most restrictive) was 2019, Tier 3 was 2020, Tier 4 (smaller buildings) was 2021. Most compliance is now complete but enforcement continues. Single-family homes are NOT subject to this ordinance, but voluntary cripple-wall and foundation-bolt retrofits ($3K-$15K) are common in pre-1960 SF homes. The CEA (California Earthquake Authority) and Earthquake Brace + Bolt program offer up to $3,000 in grants for voluntary retrofits.
SFDBI handles building code review; SF Planning Department handles zoning, design review, and historic preservation review — and Planning sign-off is required BEFORE most permits. Planning review applies to: any addition increasing height/depth/envelope, garage conversions, ADUs, condo conversions, mergers, demolitions, and any project in Article 10/11 historic districts. Discretionary Review (DR) by the Planning Commission applies if neighbors object — adding 4-9 months and a public hearing. Standard ministerial Planning review for a kitchen remodel is 4-8 weeks; a major addition or DR can add 6-12 months. SF is the most procedurally-complex remodeling city in the U.S. — budget extra time and consultation fees.
San Francisco ranges in 2026: $65K-$110K for a mid-range kitchen (semi-custom cabinets, quartz, mid-tier appliances, same footprint), $115K-$210K for a full gut with custom cabinetry and Sub-Zero/Wolf appliances, and $230K+ for chef-grade with structural changes. Pacific Heights, Russian Hill, Noe Valley, and Cole Valley add 10-20% premium on top. Permit fees on a $120K SF kitchen run $4K-$10K. Trade labor is $115-$170/hr — among the highest in the country, driven by tight licensed-trade supply, strong unions, and SFBC complexity. Even modest renovations require licensed C-10 electrical and C-36 plumbing — DIY is impractical given SFBC requirements.
$220K-$550K all-in for a typical 400-800 sq ft ADU in San Francisco — typically rear-yard or in-law conversion. SF has expanded ADU allowances under state law (SB 1069, AB 68, AB 881) plus local AB 1033 condo-sale allowances. Garage conversions are slightly cheaper at $160K-$340K. Drivers of high cost: lot constraints (most SF parcels are 25x100 ft with structures already covering most of the lot), utility upgrades (sewer lateral $20K-$40K, electrical service often requires PG&E-coordinated upgrades), Planning + Historic Preservation review fees ($8K-$25K), and SFBC structural and energy-code stringency. ADUs in SOMA, Mission, and outer neighborhoods typically run cheaper than Pacific Heights/Russian Hill.
Full-gut renovations in SF run $475-$850 per square foot in 2026. A 2,200 sq ft Noe Valley or Cole Valley gut typically lands at $1.05M-$1.9M including soft costs and permits. Pacific Heights, Russian Hill, and Marina District push to the top of the band. Pre-1978 homes (most SF housing) trigger California Title 17 lead-paint rules. Pre-1985 commonly has asbestos in popcorn ceilings, floor tile, pipe insulation, and HVAC duct wrap. SF-specific drivers: Title 24 Building Energy Efficiency Standards (most aggressive in California — solar-ready roof, heat-pump water heater, induction cooking on remodel-triggered upgrades), Article 10/11 historic review, and rent-controlled tenant relocation costs ($15K-$80K per tenant if displacement occurs).
California licenses contractors at the state level through the Contractors State License Board (CSLB). Verify at cslb.ca.gov by license number — must be 'Active' with the correct classification (B for general, C-36 plumbing, C-10 electrical, C-20 HVAC, etc.) and show bonded status. SF requires a CSLB license for any project over $500. Workers' comp coverage and a $25K bond minimum are required. The City and County of San Francisco also requires a Business Registration Certificate from the Office of the Treasurer & Tax Collector (BRT). Building inspectors check both CSLB license and BRT during framing, rough-in, and final. Never pay more than 10% or $1,000 (whichever is less) as a deposit (B&P Code 7159).
No separate 'SF contractor license' above CSLB. But the City and County of SF requires a Business Registration Certificate (BRT) for any contractor doing work in SF, registered with the Office of the Treasurer & Tax Collector. Trade contractors (electrical, plumbing, HVAC) hold separate CSLB classifications (C-10, C-36, C-20) — verify the actual sub-trade license. SFDBI also requires that the named licensee on permits match the CSLB-licensed entity. Inspectors are particularly strict about license-on-permit-vs-actual-builder mismatches in SF — this is a common cause of failed inspections and stop-work orders. Always verify CSLB license + BRT + that the responsible managing employee on file is actually on site.
California treats unlicensed contracting on jobs over $500 as a misdemeanor under B&P Code 7028 — fines up to $5,000, up to 6 months in jail, and the homeowner has no mechanics-lien defense or CSLB Recovery Fund access. SF DBI and Code Enforcement issue Stop Work Orders and 2x permit-fee penalties. Worse: unpermitted/unlicensed work creates a major problem with SF's tenant-protection ordinances (rent control + eviction rules), with the SF Planning Department's enforcement of tenant-occupied-unit alterations, and with California TDS (Real Estate Transfer Disclosure Statement) on resale. Some unpermitted alterations have triggered $50K-$200K in retroactive fines and required tear-out. Always verify CSLB + BRT before any contract.
SFBC adopts California Title 24 with stricter local amendments — making SF among the most aggressive energy-code jurisdictions in the country. Mandatory on remodels triggering envelope/HVAC/electrical work: solar-ready roof (conduit, framing, electrical capacity for future PV), heat-pump water heater (new installs and replacements), induction-ready electrical service for cooking, R-38 attic insulation minimum, dual-pane low-E windows, HRV/ERV ventilation in tight envelopes, and full Title 24 compliance documentation (CF-1R/CF-2R/CF-3R forms). New construction requires solar PV. SF Building Standards Code also enforces more stringent fire and seismic provisions than most California cities. Title 24 compliance documentation alone runs $2K-$8K for a typical renovation.
SF Rent Ordinance (Chapter 37 SF Admin Code) governs tenant displacement during renovation. If a renovation requires temporary displacement of rent-controlled tenants, you must serve formal notice, pay relocation expenses (current rates: $7,800-$8,000 base + $5,000-$7,000 per qualifying member, capped per unit), and respect Tenant Buyout Agreement procedures if buyout is offered. Permanent displacement under the Ellis Act has 1-year notice requirements (extendable for senior/disabled tenants) and re-rental restrictions. Major capital improvement (MCI) passthrough to rents is heavily restricted in SF. ALWAYS consult a SF tenant attorney BEFORE scoping a renovation in a tenant-occupied unit — penalties for noncompliance run into the hundreds of thousands of dollars.
SF Planning Code Article 10 designates individual landmark buildings (~280 designated). Article 11 establishes Conservation Districts in commercial zones (Jackson Square, Northeast Waterfront, South End, Inner Mission, Kearny-Belden, Kearny-Market, etc.). For Article 10 landmarks, any exterior alteration, new signage, or character-defining-feature change requires a Certificate of Appropriateness from the Historic Preservation Commission (HPC) — review 6-16 weeks. For Article 11 Conservation Districts, similar review applies. SF also has many properties listed on the California Register or National Register, and Planning treats those as 'category A' historic resources requiring CEQA review. Historic review can add 6 months and $10K-$40K in soft costs to a project. Pull your property's Planning history (Property Information Map) BEFORE scoping.
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