rv-park
Candlestick RV Park
650 Gilman Ave, San Francisco, CA 94124
RV park ~4 mi south of downtown San Francisco offering monthly long-term residency (~$1,350-$1,500/month) with full hookups, laundry, and Wi-Fi.
Moderate · Why this rating →
Tiny Homes in San Francisco, California
Tiny homes in San Francisco, California — zoning rules, THOW parking, builder costs, and what you need to know before buying.
Last researched June 2026
$60,000 – $175,000
Builder cost range
6
Builders serving area
873,965
Population
Moderate
Tiny-home friendliness
Why San Francisco
Living small is native to San Francisco — the housing stock has always run compact, and most tiny-home energy here goes into garage conversions and rear-yard cottages in neighborhoods like the Outer Sunset, Excelsior, and Bernal Heights, where lots actually have yards. The marine climate is famously steady: 50s and 60s nearly year-round, fog rolling over the west side on summer afternoons, no real winter. That means low utility bills but a premium on well-sealed, bright interiors. Ocean Beach, Golden Gate Park, and Marin trailheads are all within a short ride, and car-free living is more realistic here than almost anywhere in California.
Zoning & Placement
State zoning:ModerateADU rules:Documented below
San Francisco is one of the more restrictive California cities for tiny homes. The city's Planning Code requires a minimum room size of 70 square feet and imposes minimum ADU sizes of 220 square feet with 7.5-foot ceiling heights, effectively excluding most THOW formats. Unlike Los Angeles and Fresno, San Francisco has not adopted an explicit "movable tiny house" or THOW-as-ADU ordinance. THOWs are not recognized as legal dwelling units within San Francisco city limits as of April 2026; specific ordinance details were not confirmed beyond this general restriction.
Foundation-built ADUs represent the primary tiny home pathway in San Francisco. The city updated its ADU program significantly in 2025: approval became ministerial (eliminating neighborhood notification requirements under Planning Code Section 311); starting May 1, 2025, ADUs can be sold as separately deeded condominiums under AB 1033; and beginning January 1, 2025, the city was required to offer pre-approved ADU plans. Single-family lots with four or fewer existing dwelling units may add one ADU; multi-family properties may add one ADU for every four existing residential units. ADUs must include private open space, adequate natural light and ventilation, and fire safety egress compliance.
The Family Zoning Plan, signed into law by Mayor Lurie on December 12, 2025 (effective January 12, 2026), removes restrictive zoning barriers in western and northern San Francisco neighborhoods, creating capacity for up to 36,200 additional units citywide. This may expand ADU and small-unit opportunities over time. Verify current requirements with your local planning department before purchasing land or beginning construction.
Verify current requirements with your local planning department.
What to verify locally
- • Confirm whether your tiny home will be treated as an ADU, a site-built dwelling, or a recreational vehicle.
- • Ask about utility hookup requirements, especially sewer, electrical service, and emergency-access setbacks.
- • Check whether long-term occupancy is allowed on the lot type you are considering.
- • Verify minimum square footage requirements for your zone classification.
ADU & Backyard Tiny Homes
San Francisco runs two parallel ADU tracks: the local program under Planning Code Section 207.1 (which removes the unit cap on lots with more than four dwelling units and uses a waiver process) and the state-mandated program under Section 207.2 for ADUs and JADUs in or attached to existing or proposed homes. Most San Francisco ADUs are conversions of garages, basements, and ground-floor storage rather than backyard cottages, though detached units are possible under the state program. As of July 2025, an ordinance approved by the Board of Supervisors (File No. 241069) added Planning Code Section 207.4, allowing eligible new or detached state-program ADUs to be subdivided and sold as separate condominiums.
Where to Park
Communities, RV parks, and parking options in and near San Francisco.
THOW parking rules:Documented belowCommunities listed:3
Within San Francisco city limits, THOWs (tiny homes on wheels) are not recognized as legal dwelling units under current zoning and lack an explicit permit pathway as of April 2026. Placing a THOW on private residential property as a full-time dwelling is not currently authorized. Those seeking a legally compliant tiny-home lifestyle in San Francisco should focus on foundation-built ADUs or explore options outside city limits. For THOW parking and RV-based residency, Treasure Island Mobile Home & RV Park is located on Treasure Island in San Francisco Bay and offers RV spaces. Candlestick RV Park in the city's southeast industrial area has increasingly housed long-term residents, with spaces starting around $2,500 per month including water, electricity, and sewer hookups. San Francisco also launched a pilot program in late 2025 to fund landlords who house RV residents, reflecting the city's awareness of vehicle-based housing. Delta Bay (in Isleton, approximately 50 miles northeast, in the California Delta) is the nearest confirmed legal tiny home community allowing permanent THOW residency in Northern California. Call individual parks to confirm current availability and full-time residency policies.
rv-park
Treasure Island Mobile Home & RV Park
1700 El Camino Real, South San Francisco, CA 94080 (~10 mi S of downtown SF)
350+ space year-round residential RV and mobile home community with long-term stays starting at $1,600/month and full hookups.
rv-park
San Francisco RV Resort
700 Palmetto Ave, Pacifica, CA 94044 (~15 mi S of downtown SF)
Oceanfront Thousand Trails RV resort in Pacifica offering monthly stays (~$1,765-$1,837 for premium inland sites, electricity excluded).
Builders Serving California
California Tiny House
Fresno, California
Fresno-based family-owned builder with over a decade of experience and 100+ tiny homes built. Offers custom THOWs, shells, and a DIY Beta Program. Active in California tiny home legislation and partners with high school CTE programs through their Tiny_edu nonprofit. THIA member.
THOW Custom builds ADU consulting
Service areas: California
Forever Tiny Homes
Cottonwood, California
RVIA and PWA certified builder operating from a 24,000 sq ft facility in Cottonwood. Minority woman-owned, state-licensed RV manufacturer with NHTSA compliance and VIN stamping. Offers in-stock models and custom builds with nationwide shipping. THIA commercial member.
THOW ADU
Service areas: California, Nationwide
Seattle Tiny Homes
Buckley, Washington
Buckley-based builder and one of Washington's first to embrace L&I factory inspection. Builds ANSI 119.5 certified THOWs, park models, and modular tiny homes. CEO Todd McKellips also serves as executive director of the Washington Tiny House Association.
THOW Park models Modular homes
Service areas: Washington, Oregon, California
Tiny Heirloom
Portland, Oregon
Portland-based luxury tiny home builder featured on national television. Family-owned company offering fully custom THOWs, park models, ADUs, and commercial builds. Signature Series starts at $129,900. Builds designed for Oregon's climate with moisture resistance and thermal insulation.
Luxury custom THOW Park models ADU
Service areas: Oregon, Washington, California
Tru Form Tiny
Eugene, Oregon
Eugene-based luxury tiny home builder with over 300 handcrafted homes delivered. Family-owned company with PHIUS and LEED backgrounds emphasizing sustainable building practices. Offers both signature models and fully custom builds with financing starting at $697/month.
Luxury THOW Custom builds
Service areas: Oregon, Washington, California
Wolf Industries
Battle Ground, washington
Battle Ground factory builder producing modular tiny homes, ADUs, and single-family homes. Over 500 homes placed in five years. New 21,000 sq ft factory doubles production capacity to two homes per week.
Modular homes ADU focused Prefab / factory-built
Service areas: washington, oregon, california, montana, idaho
Costs
A comparison between tiny-home living and conventional homeownership in San Francisco.
Typical builder range:$60,000 – $175,000
Builder cost range
$60,000 – $175,000 estimated range
Average tiny home builder costs in the San Francisco area. Actual prices vary by size, materials, and customization.
Guides for California Buyers
Guides, zoning explainers, and financing articles related to this state.
The Complete Guide to Tiny Home Living in California (2026)
Everything you need to know about living in a tiny home in California — legal pathways, best cities, costs by region, builders, financing, insurance, and off-grid options. Updated for 2026 laws.
Tiny Home Zoning Laws by State (2026): Where Can You Actually Live?
A state-by-state breakdown of tiny home zoning laws, THOW regulations, ADU rules, and where tiny homes are easiest to place legally in 2026.
Tiny Home Zoning by State: What's Legal Where in 2025
A state-by-state overview of tiny home zoning laws, covering the most friendly and most restrictive states for THOW and foundation tiny home placement.