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Find county GIS and property maps

Browse official GIS tools, assessor map information and county map referrals. Some entries provide instructions or map indexes rather than an interactive GIS viewer.

Before you start

Start with the jurisdiction of the property. County permit offices may serve only unincorporated areas.
Use the official map and confirm project requirements with the planning or building office.

1 guide with reviewed service links · San Diego

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Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties

County directory Reviewed service guides available

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Map source

U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

County government · San Diego

Planning & Development Services — Building Division

San Diego County building permit services. Confirm which county or city agency handles your property before applying.

GIS PortalOfficial instructions

Officially linked county property-map resource. This verifies the referral and stated label; interactive layers, parcel results, legal boundaries, buildability and application eligibility are not determined here.

Source checked October 26, 2026

San Diego County · San Diego — building permit department (opens in a new tab)

Official property-office map referral: GIS Portal

GIS Portal

Saved evidence: 09d3fa62bdb7cdd0 · Agent source review

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