Alameda County, CA Solar Energy: HOA Restrictions (2026)
Key Facts
- Governing law
- Civil Code 714 Solar Rights Act
- Efficiency threshold
- 10 percent output / 1,000 dollars
- Review deadline
- 45 days, silence = approval
- Common roofs
- Protected by AB 634
- Penalty for violation
- Up to 1,000 dollars civil
Summary
Alameda County HOAs cannot prohibit solar under CA Civil Code 714 (Solar Rights Act). Only reasonable restrictions are allowed that do not significantly reduce efficiency or raise cost.
(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. ... 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.
Full Breakdown
The California Solar Rights Act (Civil Code 714) voids any HOA rule that effectively prohibits or restricts solar energy systems. Reasonable restrictions are allowed only if they do not significantly decrease efficiency (defined as more than 10 percent reduction in output or more than 1,000 dollars increase in cost for photovoltaic systems). AB 634 (2017) clarified that HOAs cannot require solar on common roofs to go through full architectural review that effectively blocks installations. The HOA must approve or deny applications within 45 days, and failure to respond constitutes approval. HOAs in Dublin Ranch, Ruby Hill Pleasanton, and other Alameda County planned communities have lost challenges in court when they denied solar for purely aesthetic reasons. Homeowners may recover attorney fees and actual damages plus a civil penalty of up to 1,000 dollars for willful violations.
Frequently Asked Questions
Can my HOA require specific panel colors?
What if my HOA delays my solar application?
Sources & Official References
Other rules in Alameda County
California rules heatmap·Compare Alameda County to another location·View the California solar energy overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.