San Francisco County, California GIS, parcel, zoning and land-record resources
A county parcel map is a starting point for locating land and finding its public records. Use official California and San Francisco County research paths to locate the parcel, confirm jurisdiction, review planning and environmental requirements, open underlying records and preserve unresolved questions in one due-diligence record.
Keep your research beside your property review
Start with an address, parcel number or listing. Keep the findings and questions for that property together in LandGauge.
On desktop, select an official source below to research side by side. Your review stays open while you switch sources. If a website will not display, use Open in new tab.
Confirm the governing jurisdiction first
San Francisco County is a geographic starting point, not proof of permitting authority. Confirm county versus city jurisdiction, the Coastal Commission where applicable, and any tribal, state or federal authority. This county page is an official-resource research path, not automated California parcel coverage. Use the county offices and maps manually and preserve every unresolved fact as needing verification.
Official research resources
San Francisco County is a geographic starting point, not proof of permitting authority. Confirm county versus city jurisdiction, the Coastal Commission where applicable, and any tribal, state or federal authority. This county page is an official-resource research path, not automated California parcel coverage. Use the county offices and maps manually and preserve every unresolved fact as needing verification.
Tap a resource to see its details, then open the official source. Use your browser’s Back or close control to return here.
GISSan Francisco County GIS and parcel-map discovery
Use the official county website to locate GIS, assessor maps, parcel viewers and current mapping contacts.
This county page is an official-resource research path, not automated California parcel coverage. Use the county offices and maps manually and preserve every unresolved fact as needing verification. County maps do not establish surveyed boundaries, legal acreage, title, legal access or development approval.
Open official source : San Francisco County GIS and parcel-map discovery (opens in a new tab)Parcel recordsSan Francisco County Assessor directory
Use the official county website to locate the Assessor, parcel search, assessment maps and current office instructions.
This is an official office-discovery path, not a direct parcel result. Assessment records do not establish a legal lot, title, access, surveyed acreage or buildability.
Open official source : San Francisco County Assessor directory (opens in a new tab)PlanningSan Francisco County planning and development directory
Locate the county planning department and request the applicable zoning, general-plan, land-division, setback and permit requirements.
Confirm whether the parcel is governed by the county, a city, the Coastal Commission or another authority. An assessor parcel or mapped zoning label is not a subdivision or development approval.
Open official source : San Francisco County planning and development directory (opens in a new tab)Recorded documentsSan Francisco County recorder and clerk directory
Locate the Recorder or Clerk-Recorder and request deeds, plats, maps, easements, covenants and recorded agreements.
Open the underlying instruments and title exceptions. An index entry, assessor map or visible road does not prove legal access or development rights.
Open official source : San Francisco County recorder and clerk directory (opens in a new tab)PlanningCalifornia onsite wastewater policy and local authority
Use the State Water Board OWTS program, then confirm the responsible county environmental-health or local permitting office.
State policy is only the starting point. Obtain parcel-specific soils, site evaluation, setbacks, design, capacity and local approval. An existing system does not approve another dwelling or land division.
Open official source : California onsite wastewater policy and local authority (opens in a new tab)Recorded documentsCalifornia well-completion reports
Research available well-completion reports through the Department of Water Resources.
A nearby well report does not prove reliable yield, water quality, a shared-well right or permission to drill. Verify the actual well, parcel relationship and current local requirements.
Open official source : California well-completion reports (opens in a new tab)Recorded documentsCalifornia water-rights records — CalWATRS
Use the State Water Resources Control Board's CalWATRS system to investigate water-right records.
Confirm the actual right, owner, place and purpose of use, priority, status, restrictions and any provider commitment. Land ownership alone does not establish usable project water.
Open official source : California water-rights records — CalWATRS (opens in a new tab)GISCAL FIRE hazard-severity-zone maps
Screen state and local fire-hazard severity zones and identify the responsible fire authority.
A map is a screening tool. Confirm current local maps, defensible-space, access, water-supply, construction and insurance implications for the parcel.
Open official source : CAL FIRE hazard-severity-zone maps (opens in a new tab)PlanningCalifornia Coastal Commission maps
Determine whether coastal-zone review or a local coastal program may affect the property.
County location does not establish Coastal Commission jurisdiction or approval. Confirm the certified local coastal program, appeal area and parcel-specific permit path where applicable.
Open official source : California Coastal Commission maps (opens in a new tab)FloodFEMA Map Service Center
Locate effective flood maps and related map products for the property.
Separate effective from preliminary products and confirm county or city floodplain and drainage requirements. An unmapped location is not proof of no flood risk.
Open official source : FEMA Map Service Center (opens in a new tab)If this source won’t open
Try opening the source in a new tab. It may be temporarily unavailable or require a browser security check.
Try FEMA’s effective flood map viewer. Confirm the panel and effective date; missing results do not establish that the property is outside a flood zone. You can also ask FEMA’s map specialists for help.
Keep this answer unknown until you can verify it. Save a note about what you still need to check. Opening a link or contacting an office does not confirm an answer.
TerrainUSGS National Map
Screen elevation, contours, drainage and terrain context.
Regional data does not replace a survey, geotechnical work or site investigation. Check slope, soils, landslide, seismic, wildfire and seasonal-access conditions separately.
Open official source : USGS National Map (opens in a new tab)FEMA Map Service Center
Locate effective flood maps and related map products for the property.
Separate effective from preliminary products and confirm county or city floodplain and drainage requirements. An unmapped location is not proof of no flood risk.
Open official sourceIf this source won’t open
Try opening the source in a new tab. It may be temporarily unavailable or require a browser security check.
Try FEMA’s effective flood map viewer. Confirm the panel and effective date; missing results do not establish that the property is outside a flood zone. You can also ask FEMA’s map specialists for help.
Keep this answer unknown until you can verify it. Save a note about what you still need to check. Opening a link or contacting an office does not confirm an answer.
A practical San Francisco County research sequence
California's county maps and statewide hazard, water and environmental resources are valuable starting points, but land-use, subdivision, recording, wastewater, coastal, water and jurisdiction questions still require property-specific confirmation.
- 1
Locate the parcel and confirm the governing authority
Start with county GIS and assessor resources, then determine whether the county, a city, the Coastal Commission, a tribe, or a state or federal agency controls the land-use question.
- 2
Verify zoning, subdivision and environmental review
Confirm allowed uses, setbacks, density, minimum parcel size, subdivision procedure, CEQA path, coastal review where applicable, and the responsible wastewater authority.
- 3
Open the underlying records
Review the current deed, recorded map or plat, survey, easements, covenants, water-right records, well reports, title exceptions and any project-specific approvals.
- 4
Verify physical, hazard and access constraints
Investigate legal and physical access, utilities, wells, septic feasibility, wildfire, flood, slope, soils, landslide, seismic, habitat and seasonal-access conditions.
Why San Francisco County research still requires manual verification
Current deeds, recorded maps, surveys, easements, subdivision files, environmental-health approvals, water rights, coastal determinations and planning decisions may require registration, payment, email, a phone call or an in-person request. Access, water, wastewater, hazards, jurisdiction and buildability conclusions require property-specific evidence.
San Francisco County, California GIS and zoning questions
Where is the official San Francisco County, California parcel map?
Open the county GIS and assessor discovery links on this page. Humboldt has LandGauge's only accepted California assisted parcel source; Kern is directory-only; other California counties remain manual official-resource paths. Always confirm mapped facts against the underlying records.
Does a California assessor parcel prove I can build or split the land?
No. An assessor parcel number is not a subdivision approval, legal-access determination, survey or building approval. Confirm jurisdiction, zoning, map status, subdivision rules, utilities, wastewater, water, hazards and required discretionary review.
How do city, county and coastal jurisdiction affect San Francisco County?
A postal address or county name does not identify the final permitting authority. Confirm whether the property is incorporated, unincorporated, within the coastal zone, tribal land, or affected by state or federal land and resource jurisdiction.
How do I check wells, septic, water rights and wildfire risk?
Use DWR well-completion reports, State Water Board water-right and OWTS resources, the responsible local environmental-health office, and CAL FIRE hazard maps. Treat every map or nearby record as a lead until it is tied to the parcel and proposed use.
What if a California county record is not online?
Keep it marked as needing verification and contact the county assessor, recorder, planning department, environmental-health office or other responsible authority. Missing online information is not evidence that a right, restriction, hazard or approval does not exist.
Turn the research into a property record
Start with California and San Francisco County preselected. Add the address, parcel number or listing URL, then save official findings, seller claims and unresolved questions in one Property Review.
Start the Property ReviewLandGauge organizes research starting points. County and map information may change and does not replace a survey, title examination, engineering review, floodplain determination, permit decision or professional advice.