California / Contra Costa County
Roof Replacement Permit in Contra Costa County, California
Permit required
Yes, a permit is required
Before beginning any re-roof installation or roof repair on a residential structure, with no minimum square footage or dollar threshold published.
Issued byContra Costa County Department of Conservation and Development, Building Inspection Division
By Mario Bailey, verified against official sources
Quick answer
Contra Costa County requires a permit for every re-roof installation and every roof repair, obtained before work begins, with no published small-job exemption. Replacement, recovering, or recoating of roofs sloped steeper than 2:12 and located east of the Berkeley Hills / El Sobrante ridge must use cool roof products labeled as compliant with the Cool Roof Rating Council, subject to several exceptions including R38 ceiling insulation and radiant barrier roof sheathing. Where new roofing material exceeds a total weight of 6.0 pounds per square foot, additional roof framing and support may be required and information about the existing framing must be provided to Building Division staff. All re-roofs require two inspections: an in-progress inspection to verify ventilation, flue clearance, and material installation, and a final inspection after all work is complete.
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When a permit is usually needed
Before beginning any re-roof installation or roof repair on a residential structure, with no minimum square footage or dollar threshold published.
What a roof replacement permit costs in Contra Costa County
How Contra Costa County compares in California
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Alameda County | It depends | Aggregate roof area repaired on a previously permitted roof, at which the building permit exemption stops |
| Contra Costa Countythis page | Permit required | Any size |
| Fresno County | Permit required | Any size |
| Los Angeles | Permit required | Any size |
| Los Angeles County | Permit required | Any size |
| Orange County | Permit required | Any size |
| Riverside County | It depends | Roof repairs or replacements covering less than 25 percent of the legally existing roof area are exempt, provided the work does not involve the underlying framing and does not occur more than once in a 12-month period |
How to apply in Contra Costa County
In Contra Costa County, a residential reroof permit application is lighter than for structural work: you state whether the scope is a full tear-off (roof replacement) or an overlay (roof recover), describe the covering material and its manufacturer instructions, and note the condition of the existing deck, since those facts determine which code path applies.
What most roof replacement permit applications include:
- State on the application whether the job is a roof replacement, which strips all existing layers down to the bare deck, or a roof recover, which leaves the old covering in place under specific conditions, since the two scopes are governed differently (IRC R908.3).
- For Contra Costa County, a recover is only an option where the new covering follows the roof covering manufacturer's approved instructions or is a self-supporting system, such as standing-seam metal, that does not rely on the existing roof for support (IRC R908.3.1).
- Full tear-off must be scoped on the application instead of a recover when the existing roof is water soaked or deteriorated, is slate, clay, cement, or asbestos-cement tile, or already carries two or more layers of roof covering (IRC R908.3.1.1).
- For Contra Costa County, the materials and installation methods described on the application must comply with the reroofing requirements of the roof-assemblies chapter (IRC R908.1).
- If the scope reuses existing slate, clay, or cement tile, damaged or broken pieces cannot be listed for reinstallation, and any rusted or deteriorated flashings, edgings, outlets, or vents uncovered during tear-off must be scoped for replacement (IRC R908.5).
General submittal guidance from IRC Section R908 Reroofing (text as adopted in the 2020 Residential Code of New York State, based on the 2018 IRC). Source. Contra Costa County Department of Conservation and Development, Building Inspection Division sets the exact checklist for Contra Costa County.
Where to apply in Contra Costa County:
Contra Costa County Department of Conservation and Development, Building Inspection Division
- Application and Permit Center, 30 Muir Road, Martinez, CA 94553
- Phone: 925-655-2700
- Email: permits@dcd.cccounty.us
Roof Replacement Permit in Contra Costa County compared with nearby California localities
| Locality | Permit needed? | Threshold | What each California schedule says | Verified |
|---|---|---|---|---|
| Contra Costa County | Permit required | Any size | ...Schedule item 14, "Re-Roofs - Residential": Building Permit / Inspection $150.00... | |
| Alameda County | It depends | Aggregate roof area repaired on a previously permitted roof, at which the building permit exemption stops | ...valuation on the Schedule A building permit fee table, which begins '$140.00... | |
| Fresno County | Permit required | Any size | Single family residential: $201.47 per structure for FY 2026-27 | |
| Los Angeles | Permit required | Any size | Valuation-based building permit per LAMC 91.113 Table 1-A | |
| Los Angeles County | Permit required | Any size | A reroof is priced from the valuation-based Table 1-A Building Permit Fees ($65.36 for a... |
Inspections and closing out your permit
In Contra Costa County, most residential reroofs get two to three field inspections keyed to the scope of work: a deck or nailing check when sheathing is exposed or replaced, a final on the completed covering and flashings, and in some high-wind regions a dedicated check of mitigation measures added during tear-off.
- In Contra Costa County: where the covering is fully removed and the sheathing is exposed, replaced, or added, inspectors check the deck and its nailing before any new roofing goes down, since the structural framework must be able to carry the new covering's loads (IRC R908.2).
- In Contra Costa County: an overlay is only approved where it meets one of the code's listed recover conditions, such as installation in accordance with the covering manufacturer's approved instructions (IRC R908.3.1).
- In Contra Costa County: flashings disturbed or replaced during the job are checked against the approved manufacturer's installation instructions, and metal flashing that will receive bituminous material must be primed before installation (IRC R908.6).
- In Contra Costa County: a final inspection confirms the completed roof covering and its fasteners were installed as required for that material and per manufacturer instructions before the permit is closed (IRC R905).
- In Contra Costa County: in some regions with strengthened wind provisions, reroofing an older single-family home also triggers inspection of supplemental deck-nailing and a secondary water barrier added during tear-off, on top of the base reroofing requirements (Florida Building Code, Residential R908.7 Mitigation).
- In Contra Costa County: reinstalled existing slate, clay, or cement tile is checked against reuse limits at inspection, and any rusted, damaged, or deteriorated flashings, edgings, outlets, or vents found during tear-off must be replaced rather than reinstalled (IRC R908.5).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Contra Costa County permit portal or by phone at 925-655-2700.
Inspection sequence from IRC Section R908 Reroofing and Section R905 Roof Coverings (2021 International Residential Code). Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Roof Replacement Permit checklist for Contra Costa County
- Confirm the requirement. Yes, a permit is required. Usually needed: Before beginning any re-roof installation or roof repair on a residential structure, with no minimum square footage or dollar threshold published.
- Budget the fee. Land Development Fee Schedule item 14, "Re-Roofs - Residential": Building Permit / Inspection $150.00 per permit and Processing $38.00 per permit. The Building Valuation Data Supplement separately values reroofing at $5.03 per square foot for built up, composition shingles, and foam, $5.88 per square foot for treated wood, metal, and proprietary products, and $7.54 per square foot for masonry, clay, and concrete tile. Fee schedule adopted May 24, 2022, effective August 10, 2022. Official fee schedule.
- Apply. In Contra Costa County, a residential reroof permit application is lighter than for structural work: you state whether the scope is a full tear-off (roof replacement) or an overlay (roof recover), describe the covering material and its manufacturer instructions, and note the condition of the existing deck, since those facts determine which code path applies. Start at the Contra Costa County permit portal.
- Keep the office details handy. Contra Costa County Department of Conservation and Development, Building Inspection Division. Phone: 925-655-2700. Address: Application and Permit Center, 30 Muir Road, Martinez, CA 94553.
- Plan for inspections. In Contra Costa County, most residential reroofs get two to three field inspections keyed to the scope of work: a deck or nailing check when sheathing is exposed or replaced, a final on the completed covering and flashings, and in some high-wind regions a dedicated check of mitigation measures added during tear-off.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a roof replacement permit in Contra Costa County?
- Contra Costa County requires a permit for every re-roof installation and every roof repair, obtained before work begins, with no published small-job exemption. Replacement, recovering, or recoating of roofs sloped steeper than 2:12 and located east of the Berkeley Hills / El Sobrante ridge must use cool roof products labeled as compliant with the Cool Roof Rating Council, subject to several exceptions including R38 ceiling insulation and radiant barrier roof sheathing. Where new roofing material exceeds a total weight of 6.0 pounds per square foot, additional roof framing and support may be required and information about the existing framing must be provided to Building Division staff. All re-roofs require two inspections: an in-progress inspection to verify ventilation, flue clearance, and material installation, and a final inspection after all work is complete. Always confirm with the Contra Costa County Department of Conservation and Development, Building Inspection Division before starting.
- How much does a roof replacement permit cost in Contra Costa County?
- Land Development Fee Schedule item 14, "Re-Roofs - Residential": Building Permit / Inspection $150.00 per permit and Processing $38.00 per permit. The Building Valuation Data Supplement separately values reroofing at $5.03 per square foot for built up, composition shingles, and foam, $5.88 per square foot for treated wood, metal, and proprietary products, and $7.54 per square foot for masonry, clay, and concrete tile. Fee schedule adopted May 24, 2022, effective August 10, 2022. See the official fee schedule for current amounts.
- Where do you apply for a roof replacement permit in Contra Costa County?
- You can apply through the Contra Costa County permit portal or contact the Contra Costa County Department of Conservation and Development, Building Inspection Division directly. The links are listed on this page.
- Can a homeowner pull a roof replacement permit themselves in Contra Costa County?
- Under California law (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5): California exempts an owner from contractor licensing under section 7044 when they personally perform all the work on their own property, or any work they do not perform themselves is done by their own employees paid only wages, and none of the improvements are intended or offered for sale. It also exempts an owner who directly contracts with licensed contractors for each trade, as long as no more than four of the single-family residential structures involved are intended or offered for sale in a calendar year; this route does not apply if the owner instead contracts with a general contractor for the construction. A homeowner may also improve their own principal residence without a license, as long as the work is done before any sale, they have actually resided there for the 12 months before completion, and they have not used this exemption on more than two structures more than once in any three-year period. Selling a self-built structure within one year of completion creates a rebuttable presumption that it was built for sale, which defeats the exemption, and selling five or more structures within a year makes that presumption conclusive. Separately, every city or county that requires a permit must also require the applicant to file a signed statement giving their contractor license number or the basis of their claimed exemption; a false or missing statement carries a civil penalty of up to $500. Confirm how Contra Costa County applies this before you apply.
From the Library
What else needs a permit in Contra Costa County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | It depends | area of a deck that is also no more than 30 inches above grade at any point, is not attached to a dwelling, and does not serve a code-required exit door | No deck-specific flat fee is published |
| Electrical Permit | Permit required | Any size | Land Development Fee Schedule S-002 C.6, "Electrical Permit (Other) $75.00 minimum."... |
| Fence Permit | It depends | height of a fence, with concrete and masonry walls treated as walls rather than fences | ..."Fences Greater than 7ft": Building Permit / Inspection, chain-link or wood $116.00... |
| HVAC Permit | Permit required | Any size | Land Development Fee Schedule S-002 D.6, "Mechanical Permit (Other) $75.00 minimum."... |
| Patio Permit | It depends | roof area of a trellis, arbor, or pergola accessory to a residence, treated by the county as a one-story detached accessory structure | ...cover (includes pre-fab types, usually with ICBO research listing)" at $25.73 per... |
| Plumbing Permit | Permit required | Any size | Land Development Fee Schedule S-002 E.6, "Plumbing Permit (Other) $75.00 minimum."... |
| Pool Permit | It depends | depth of a prefabricated pool accessory to a one or two family dwelling that is installed entirely above ground and holds no more than 5,000 gallons | The Building Valuation Data Supplement sets a "Swimming pool, lump sum of: $39,514.98"... |
| Shed Permit | It depends | floor area of a one-story detached accessory structure | No shed-specific flat fee is published |
| Solar Permit | Permit required | Any size | ...mount," photovoltaic systems 15 kW or less: Building Permit/inspection $86.00 per... |
Roof Replacement Permit in other California localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Contra Costa County documents; the office above sets the local rules.
How this roof replacement permit page for Contra Costa County was verified. 2 official sources: contracosta.ca.gov, contracosta.ca.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with Contra Costa County Department of Conservation and Development, Building Inspection Division. Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Compare Roof Replacement Permit requirements across California localities