Skip to main content

California
Contra Costa County

Contra Costa County building permits

Permit requirements, fees, and adopted codes for cities in Contra Costa County, California.

CityPermit types

Antioch1 permit type · Verified 2026-09-20
Concord1 permit type · Verified 2026-09-19
Richmond1 permit type · Verified 2026-09-20

Built from official sources. Never guesswork.

About

PermitBase is a free, source-cited reference for building-permit requirements. Subscribe for the monthly building-activity report, plus a note when we add a new state or when permit data changes — nothing else.

Email address

Make PermitBase a preferred source on Google

Reference

Browse jurisdictions
Permit map
Data coverage
Changes

Tools

Project checklist
What permits do I need
Fee Finder
Cost Index

Product

Property Access
Pricing
API & MCP
Data licensing
Embed a badge

About

About
Privacy
Guías en español

contact@permitbase.app

© 2026 PermitBase, a product of
Elevated Technologies LLCResearched from official sources
Not legal advice