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Contra Costa, California · County government

Conservation & Development — Building Permits

Find building permits, plan review and construction inspections.

Source checked October 14, 2026[1]
Go to the official website (opens in a new tab)
Website address
www.contracosta.ca.gov

Opens this office’s own website. CountyWiki does not process applications, take payments or provide personal records.

Contact details & office locations ↓
County building permits and inspections for unincorporated Contra Costa and Clayton, Hercules, Lafayette, Moraga and Orinda. Planning approvals within those cities remain with the city or town.[2]

Online services & information

These links were found on official source pages. Each service is handled by the office.

County building permit information (opens in a new tab)[3]Official instructions

Official county building permit guidance. Service boundaries and project requirements must be confirmed with the department.

How to get started
  1. Confirm which county or city agency handles the property before applying.
  2. Review the official requirements for your project and use the published application channel.

Before you start

Appointments · DCD appointments — questions and application assistance
Appointments CANNOT be used for the following: Submitting for a building permit or a planning application. All permit applications shall be submitted online using the links below. [10]
Information & documents · Permit and plan submission
We are continuing to offer 100% digital application submittal and no longer accept paper applications or plans. [11]
Eligibility & access · Building contract cities — planning approvals remain with each city
If your project is within a city's boundaries, Contra Costa County is not your planning agency. Contact your city directly to verify their requirements. [12]
ePermits Center (opens in a new tab)[4]Online service

Official department resource. Confirm jurisdiction, eligible project types and the published instructions before using this service.

How to get started
  1. Confirm which county or city agency handles the property before applying.
  2. Review the official requirements for your project and use the published application channel.
CCMAP — check property jurisdiction (opens in a new tab)[5]Official instructions

Official department resource. Confirm jurisdiction, eligible project types and the published instructions before using this service.

How to get started
  1. Confirm which county or city agency handles the property before applying.
  2. Review the official requirements for your project and use the published application channel.
Building inspection schedule (opens in a new tab)[6]Official instructions

Official department resource. Confirm jurisdiction, eligible project types and the published instructions before using this service.

How to get started
  1. Confirm which county or city agency handles the property before applying.
  2. Review the official requirements for your project and use the published application channel.

Fees

Fees are quoted only when a source document supports the amount and conditions.

Fee amounts have not been reviewed for this office.

Check the official website for its current fee schedule. No fee should be assumed to be free.

Forms & documents

Official forms and document pages for this office’s services.

Sources & last checked3 source pages · 12 citations

Sources were checked by an AI-assisted research process. A checked website does not mean every service or fee on it has been reviewed.

  1. [1] Contra Costa — building permit department (opens in a new tab)

    Contra Costa County · Official page text containing: Building Permit Application Submittal Overview
    Source reviewed October 14, 2026

    View supporting excerpt
    ices A-D Conservation & Development Permit information Building or Grading Permit Overview Building permit Applications Building Permit Application Submittal Overview This page will help applicants determine which application to submit and required documents for submittal. This ensures applications can be reviewed in a timely manner. The following will also help in successful building permit applications. The following will also help in successful building permit applications. Permitting Process Overview - Discover what
  2. [2] Contra Costa County — Permitting Process Overview (opens in a new tab)

    Contra Costa County · Official page text containing: The County provides Building Permit and Inspection services for unincorporated Contra Costa County along with the cities
    Source reviewed October 14, 2026

    View supporting excerpt
    gency and only reviews projects in unincorporated Contra Costa County. Cities and towns have their own planning agency. The County provides Building Permit and Inspection services for unincorporated Contra Costa County along with the cities of Clayton, Hercules, Lafayette, Moraga, and Orinda. Other cities and towns have their own building permit and inspection departments. You can use our CCMAP online mapping tool to check your jurisdiction. Planning Approval Many projects require Planning Approval prior to applying for Building Permits, including all residential units. Planning Agencies Contra Costa County Department of Conservation and Development provides planning services for projects located within unincorporated county.
  3. [3] Contra Costa — building permit department (opens in a new tab)

    Contra Costa County · Official page text containing: Building Permit Application Submittal Overview
    Source reviewed October 14, 2026

    View supporting excerpt
    ices A-D Conservation & Development Permit information Building or Grading Permit Overview Building permit Applications Building Permit Application Submittal Overview This page will help applicants determine which application to submit and required documents for submittal. This ensures applications can be reviewed in a timely manner. The following will also help in successful building permit applications. The following will also help in successful building permit applications. Permitting Process Overview - Discover what
  4. [4] Contra Costa County — Permitting Process Overview (opens in a new tab)

    Contra Costa County · Official page text containing: ePermits Center
    Source reviewed October 14, 2026

    View supporting excerpt
    permitting processes: ePermits Overview Building, Planning, and Public Works applications are submitted online via our ePermits Center. Discover how to register, submit applications, make payments, check status updates, and request permit revisions. Planning Applications Planning determines what uses you can place on your property and how the development conforms to community plans, including design of the development. Explore Popular Planning Permits like ADUs, Planning Permits for Busine
  5. [5] Contra Costa County — Permitting Process Overview (opens in a new tab)

    Contra Costa County · Official page text containing: CCMAP
    Source reviewed October 14, 2026

    View supporting excerpt
    , Moraga, and Orinda. Other cities and towns have their own building permit and inspection departments. You can use our CCMAP online mapping tool to check your jurisdiction. Planning Approval Many projects require Planning Approval prior to applying for Building Permits, including all residential units. Planning Agencies Contra Costa County Department of Conservation and Development provides planning services for projects located within unincorporated county. View Planning Applica
  6. [6] Contra Costa County — Permitting Process Overview (opens in a new tab)

    Contra Costa County · Official page text containing: Daily Building Inspection Schedule
    Source reviewed October 14, 2026

    View supporting excerpt
    on submittal for Building, Planning, and Public Works permits through our online ePermit Center. Go to ePermits website Daily Building Inspection Schedule The current business day’s building inspection schedule is posted after 8:45 AM. View Daily Inspection Website /CivicAlerts.aspx Ready to Apply for Your Permit? Go to ePermits Center When do you need a permit? When Do You Need and Planning or a Building/Grading Permit? DCD is responsible for the issuances of the following permitting processes Planning Permi
  7. [7] Contra Costa County — building department contacts and counter information (opens in a new tab)

    Contra Costa County · Official page text containing: 925-655-2700
    Source reviewed October 14, 2026

    View supporting excerpt
    rmit applications shall be submitted online using the links below. DCD staff is also available during business hours at 925-655-2700 to answer questions. Additional information on a variety of topics can be found in the “how to” guides. Apply for a Building Permit Apply for a Planning Application How to Guides: Learn more about permitting requirements Permit Status Updates If you have already submitted a planning application or a building permit application, please contact your reviewer
  8. [8] Contra Costa County — building department contacts and counter information (opens in a new tab)

    Contra Costa County · Official page text containing: 30 Muir Road, Martinez CA 94553
    Source reviewed October 14, 2026

    View supporting excerpt
    and click "change your appointment" In Person Appointments 30 minute appointments at the DCD permit center located at: 30 Muir Road, Martinez CA 94553 Helpful for reviewing digital plans/documents with County staff, including pre-application questions. Documents must be uploaded prior to your in-person appointment using the link provided in your confirmation email. If you already have documents uploaded to our permitting system, you do not have to reupload. Helpful if needing assistance with online permit
  9. [9] Contra Costa — building permit department (opens in a new tab)

    Contra Costa County · Official page text containing: Building Permit Declaration Form for Contractors and Property Owners
    Source reviewed October 14, 2026

    View supporting excerpt
    ed to licensed contractors, property owners or their authorized agent. Form below are required prior to permit issuance.Building Permit Declaration Form for Contractors and Property Owners needs to be completed and signed by the licensed contractor or an owner-builder if neither is the Applicant. For more information about who can apply for permits visit the Registering for ePermits webpage. Authorization of Agent form - required if permit will be issued as an Owner-Builder permit to an authorized agent. Additional Reports and Plans Geotechni
  10. [10] Contra Costa County — building department contacts and counter information (opens in a new tab)

    Contra Costa County · Official page text containing: Appointments CANNOT be used for the following: Submitting for a building permit or a planning application. All permit ap
    Source reviewed October 14, 2026

    View supporting excerpt
    Appointments CANNOT be used for the following: Submitting for a building permit or a planning application. All permit applications shall be submitted online using the links below.
  11. [11] Contra Costa County — building department contacts and counter information (opens in a new tab)

    Contra Costa County · Official page text containing: We are continuing to offer 100% digital application submittal and no longer accept paper applications or plans.
    Source reviewed October 14, 2026

    View supporting excerpt
    We are continuing to offer 100% digital application submittal and no longer accept paper applications or plans.
  12. [12] Contra Costa County — Permitting Process Overview (opens in a new tab)

    Contra Costa County · Official page text containing: If your project is within a city's boundaries, Contra Costa County is not your planning agency. Contact your city direct
    Source reviewed October 14, 2026

    View supporting excerpt
    If your project is within a city's boundaries, Contra Costa County is not your planning agency. Contact your city directly to verify their requirements.
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