Community Development Agency
Marin County building permit services. Confirm which county or city agency handles your property before applying.
Official county building permit guidance. Service boundaries and project requirements must be confirmed with the department.
How to get started
- Confirm which county or city agency handles the property before applying.
- Review the official requirements for your project and use the published application channel.
Source & saved evidence
Marin County · Marin — building permit department (opens in a new tab)
Official page text containing: The Community Development Agency is dedicated to promoting, protecting, and advancing healthy, safe, and equitable commu
ur government Toggle Search Query Home Departments Community Development Agency Community Development Agency What we do The Community Development Agency is dedicated to promoting, protecting, and advancing healthy, safe, and equitable communities. Find the Division you need CDA Highlights Tam Junction Content text Tam Junction Placemaking Study for community and economic vitality. West Marin Visioning Content text The West Marin Visioning initiative is a community-driven effort to define a shared, long-term vision for the future of West Marin. Septic Regulations Update Content text Updating the Count
Agent source review: October 14, 2026 · Snapshot 007c1e3006245683
Official department resource. Confirm jurisdiction, eligible project types and the published instructions before using this service.
How to get started
- Confirm which county or city agency handles the property before applying.
- Review the official requirements for your project and use the published application channel.
Source & saved evidence
Marin County · Marin County — How to apply for a building permit (opens in a new tab)
Official page text containing: Online permit portal Apply for all building permits through our online portal.
l review process. Building Permit Submittal Checklist Make a list of documents you need to submit for a building permit Online permit portal Apply for all building permits through our online portal. [External] Submit plans before starting a big job Share your plans with us before you start a big project. Digital plans will speed our review. How does the permit process work? What do I submit? How does this work? What do I get? Self-service permits for properties with septic systems The Environmental Health Services (EHS) division of the Marin County Com
Agent source review: October 14, 2026 · Snapshot 290b20e14074f521