California · Off-grid & homestead potential
San Francisco County scores 22/100 on the Bolthole Index, a weak county profile. The trade-offs: little seclusion — roughly 1,771,780 people within a 30-minute drive and higher long-term carry cost.
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Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
Scout San Francisco County
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Property hunt
Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.
Each button opens a current land search for San Francisco County. Listing sites control their own results and filters.
Use rough quotes or placeholders. Blank fields count as $0.
Working estimate
A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.
Before an offer
Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.
What it takes to build here — permits, zoning, and septic — scouted from San Francisco County’s own official sources.
As a consolidated city-county, San Francisco requires building permits issued by the Department of Building Inspection under the California Building Code and San Francisco Building Code amendments.
San Francisco Department of Building Inspection - Permit Services ↗The San Francisco Planning Department administers zoning districts under the San Francisco Planning Code; many projects require Planning approval before a building permit.
San Francisco Planning Department - Permits ↗Not published on an official source — confirm with the county.
California recognizes a statewide owner-builder exemption (B&P Code 7044); an Owner-Builder Declaration is required at permit issuance.
California Contractors State License Board - Owner-Builder Overview ↗Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Always confirm current rules with San Francisco Department of Building Inspection before you buy or build. Scouted Jul 2026 from official county sources.
San Francisco County scores 22/100 on the Bolthole Index, a weak county profile. Watch-outs: little seclusion — roughly 1,771,780 people within a 30-minute drive and higher long-term carry cost.
San Francisco County generally requires a residential building permit, and it enforces county zoning. Owner-builders may act as their own contractor to build their home. Rules change and cities within the county differ — always confirm with the county before you buy or build.
Land in San Francisco County runs about $48,425 per acre, based on the latest county data.
San Francisco County gets about 25.5" of rain a year, with severe drought in roughly 34.9% of years.
A representative private-land location has about 1,771,780 people within a 30-minute drive and 11,846,987 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.
Off-grid gear
Going off-grid in San Francisco County means bringing your own water and power. The kit we’d start with:
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