Contra Costa County, CA Solar Energy: HOA Restrictions (2026)
Key Facts
- Governing law
- CA Civil Code 714
- Efficiency floor
- HOA cannot reduce output >10%
- Cost cap
- Restrictions cannot raise cost >$1,000
- Review timeline
- 45 days: automatic approval if missed
- Penalty
- Up to $1,000 + damages + attorneys' fees
Summary
Homeowner association restrictions on rooftop solar in unincorporated Contra Costa County are governed by California Civil Code 714 (Solar Rights Act). HOAs cannot effectively prohibit or significantly limit residential solar installations.
(a) Any covenant, restriction, or condition contained in any deed, contract, security instrument, or other instrument affecting the transfer or sale of, or any interest in, real property, and any provision of a governing document, as defined in Section 4150 or 6552, that effectively prohibits or restricts the installation or use of a solar energy system is void and unenforceable.
(b) This section does not apply to provisions that impose reasonable restrictions on solar energy systems. However, it is the policy of the state to promote and encourage the use of solar energy systems and to remove obstacles thereto. Accordingly, reasonable restrictions on a solar energy system are those restrictions that do not significantly increase the cost of the system or significantly decrease its efficiency or specified performance, or that allow for an alternative system of comparable cost, efficiency, and energy conservation benefits.
Full Breakdown
California Civil Code 714 (the Solar Rights Act) supersedes any homeowner association (HOA), common interest development, or CC&R provision that effectively prohibits or restricts the installation of a solar energy system on a homeowner's property in unincorporated Contra Costa County (and statewide). HOAs may impose reasonable aesthetic restrictions only if those restrictions do not significantly increase system cost (more than $1,000 above specified thresholds) or decrease efficiency by more than 10 percent of the originally intended system. 1 further restricts HOA ability to require location changes that would reduce performance.
SB 2021 (and subsequent amendments) updated the financial thresholds. HOA architectural review of solar must be completed within 45 days or is deemed approved. HOAs cannot ban panels visible from the street or require panels only on less productive roof faces if that reduces output beyond the 10 percent threshold. An HOA that violates these rules can be liable for a civil penalty of up to $1,000 plus actual damages and attorneys' fees. The Solar Rights Act also applies to solar water heating (thermal) systems.
These state protections are generally considered among the strongest HOA solar rights in the country. Homeowners in dispute with an HOA should document the system design impact and consult California Department of Real Estate or legal counsel.
Frequently Asked Questions
Can my HOA require solar panels only on the back of my house?
What if my HOA refuses to approve my solar installation?
Sources & Official References
Other rules in Contra Costa County
California rules heatmap·Compare Contra Costa County to another location·View the California solar energy overview
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