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When a permit is required
Permit triggers and exempt work for Moraga
Moraga states permits are needed for interior or exterior alterations and additions, and for many site improvements including fences over 6 feet, irrigation systems, retaining walls over 3 feet, and accessory buildings over 120 square feet. County guidance says most construction and demolition work requires permits unless specifically exempt.
- Exempt One-story detached accessory structures not over 120 square feet, subject to planning, sanitary, or environmental health review as applicable; electrical, plumbing, and mechanical work still requires permits.
- Exempt Fences not over 7 feet high under County exemption rules, but Moraga planning rules still regulate some fences and Moraga states fences over 6 feet require a building permit.
- Exempt Retaining walls not more than 3 feet high measured from top of footing to top of wall, unless supporting surcharge, steep slopes, or certain liquids.
- Exempt Sidewalks and driveways not more than 30 inches above adjacent grade and not over a basement or story below and not part of an accessible route.
- Exempt Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work, though the County says to call for clarification on cabinet remodels, additions, or related scope.
- Exempt Prefabricated above-ground pools accessory to Group R-3 occupancy that are less than 24 inches deep and not greater than 5,000 gallons.
- Exempt Swings and other playground equipment accessory to detached one- and two-family dwellings.
- Exempt Window awnings in Group R-3 and U occupancies projecting no more than 54 inches and not requiring extra support.
- Exempt Detached decks for R-3 and U occupancies not exceeding 200 square feet, not more than 30 inches above grade, not attached to a dwelling, and not serving the required exit door.
Note: Exemptions do not override other laws or agency approvals. Moraga planning approval may still be required for exterior work, scenic corridor properties, front-yard fence issues, hillside/grading work, encroachments, or design review. Window replacement still requires a building permit in Contra Costa County, and Moraga requires planning review for some exterior changes.
- Typically digital plan set, site plan, applicable residential or commercial checklist, project-specific checklist if applicable, current code cycle on plans, and signed Building Permit Declaration. Depending on scope, additional items may include structural calculations, Title 24 energy forms, geotechnical report, drainage plan, CalGreen C and D debris documentation, fire, sanitary, or public works approvals, and owner-agent authorization.
- Building code
- Contra Costa County publishes the 2025 California Building Standards Code set, effective January 1, 2026, including the 2025 CBC, CRC, CEC, CMC, CPC, CFC, existing building code, CALGreen, and Contra Costa County Code Title VII. Moraga-specific city ordinances also apply.
- Permit validity
- County guidance says an application is deemed abandoned if the applicant or design professional does not respond to review comments within 180 days, and an application expires 12 months after notice that the permit is ready to issue if it is not obtained. Issued permits expire if work is not commenced within 12 months from issuance or if 180 days elapse since the most recent approved inspection.
- Owner-builder
- Permits may be issued to licensed contractors, property owners, or authorized agents. A Building Permit Declaration is required, and an Authorization of Agent form is required if an owner-builder permit will be issued through an authorized agent.
- Contractor requirements
- Contractors and contractor agents must connect the CSLB license to the ePermits account. County staff verifies personnel against CSLB records. For commercial buildings, permits for work other than single-family residences are issued only to the licensed contractor doing the work.
Application process
Application → plan check → issuance → inspection → final
- 01 Confirm whether Town of Moraga planning approval is required first. In Moraga, planning approval is generally required for new buildings, ADUs, changes in use, grading/hillside work, and changes to the size, height, dimensions, or other exterior features of an existing structure.
- 02 If Town approval is needed, submit the applicable Moraga planning application package to the Planning Department. Moraga states complete Administrative Design Review applications take about 60 days if the project conforms to setbacks, code, and design guidelines.
- 03 Register for a Contra Costa County ePermits account and prepare digital plans, checklists, and forms. The County requires electronic submittals and commonly requires plan sets, site plan, Title 24 information, and signed declaration forms.
- 04 Submit the building or grading application through the County ePermits Center.
- 05 County staff performs an initial completeness review. Published estimate: about 4 to 5 business days. If complete, the County creates the official permit number and assigns a reviewer.
- 06 Pay initial plan check fees when invoiced for larger projects, then respond to plan review comments until approved. Total review time is not published and depends on scope and completeness.
- 07 Pay remaining fees, download the permit card and approved plans, keep printed copies on site, then schedule inspections through the County automated line or ePermits.
Fee schedule
Moraga building permit fees
Online payments are made through ePermits. Credit cards incur a 2.75% convenience fee with $1 minimum; e-checks incur a $2.50 convenience fee. Cash and check can be used in the office to avoid online convenience fees.
Required inspections
Scheduling and sequence
- 925-646-4108 (phone)
- https://aca-prod.accela.com/contracosta/Default.aspx (online)
- https://www.contracosta.ca.gov/4777/Inspections (online)
- Scheduling deadline
- Same-day inspection requests through the automated system are accepted until 5:30 a.m.
- Inspection hours
- Same-day inspection requests through the automated system are accepted until 5:30 a.m. Monday through Friday. Daily inspection schedules are posted after 8:45 a.m. Monday through Friday, and time frames are provided in 3-hour windows.
- Time windows
- Same-day inspection requests through the automated system are accepted until 5:30 a.m. Monday through Friday. Daily inspection schedules are posted after 8:45 a.m. Monday through Friday, and time frames are provided in 3-hour windows.
Typical sequence: After permit issuance, the County inspects work to verify compliance with approved plans. Typical phases depend on the job and can include foundation, rough trade inspections, and final inspection; special inspections may also be required if assigned by plan review staff. Reinspection note: Reinspection fees apply when work is not ready or accessible, when extra inspections are needed because of deficient or defective work, or when multiple trips are required for a phase normally completed in one trip. County fee is $150 per trip.
Frequently asked
Common questions about Moraga permits
01 Do I need a building permit in Moraga, CA? ▸
02 How much does a building permit cost in Moraga, CA? ▸
03 How do I apply for a building permit in Moraga, CA? ▸
04 What work is exempt from building permits in Moraga, CA? ▸
05 How do I schedule a building inspection in Moraga, CA? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Contra Costa County Department of Conservation and Development, Application and Permit Center / Building Inspection Division before applying. Jaspector is not legal advice.