San Francisco Planning
San Francisco is a consolidated city and county. Begin with SF Planning for the parcel's land-use review; this guide does not direct you to a separate unincorporated-county planning office.
California county resources
Manufactured homes in San Francisco
Net Cost serves San Francisco. Use these local resources to investigate the parcel before choosing a home. Delivery, installation scope and project feasibility need a site-specific review.
Local research
Work with the consolidated City and County
Department of Building Inspection
DBI provides building-permit and inspection resources. Discuss the proposed factory-built home, installation approach and site access with Planning and DBI before selecting a model. Statewide sales coverage does not establish that a San Francisco parcel is eligible.
Resources checked October 20, 2026. These official resources are research starting points. Confirm current requirements with the responsible agency for your parcel and project.
Official permit and application resources
DBI building permit application forms
Issuing agency: City and County of San Francisco — Department of Building Inspection
Purpose: Find City and County building, electrical and plumbing/mechanical application forms; confirm which new-installation reviews apply.
Jurisdiction: Consolidated City and County of San Francisco: coordinate SF Planning and DBI; this record does not imply an unincorporated county permitting route. Park authority, if relevant, must be identified separately.
Link checked October 20, 2026. Use the agency’s current forms and instructions. Confirm the required application category, form revision, supporting plans and inspection steps with that agency. These are outgoing official links; Net Cost does not host the forms. A listed resource does not establish parcel eligibility, a complete submittal or permit approval.
Confirm who reviews the project
San Francisco is a consolidated City and County. Start with SF Planning for land-use questions and the Department of Building Inspection for building review. Ask which agencies must review the specific installation and associated site work.
Park placement follows a separate enforcement route: use HCD’s local enforcement agency guidance and confirm park-management requirements. For water, sewer, wells or septic, identify the actual provider and reviewing agency; county geography does not establish a utility service boundary.
Serving this county does not mean every parcel qualifies. Read the shared site-planning checklist for utility checks and the information needed to compare complete project estimates.
Plan your project
Discuss your site in San Francisco
Share the parcel and intended use so we can discuss the home and the work needed for your site.