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☀️ Solar Energy/HOA Restrictions

HOA Restrictions: Castro Valley vs Fremont

How do hoa restrictions rules compare between Castro Valley, CA and Fremont, CA?

Castro Valley and Fremont have similar restriction levels.

Castro Valley, CA

Alameda County

Few Restrictions

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.

View full Castro Valley rules →

Fremont, CA

Alameda County

Few Restrictions

California Civil Code 714 protects homeowners from most HOA solar restrictions, limiting HOAs to aesthetic rules that do not increase cost over 10 percent.

View full Fremont rules →

Key Facts Comparison

FactCastro ValleyFremont
Governing lawCivil Code 714 Solar Rights Act-
Efficiency threshold10 percent output / 1,000 dollars-
Review deadline45 days, silence = approval-
Common roofsProtected by AB 634-
Penalty for violationUp to 1,000 dollars civil-
Authority-Civil Code 714
Cost Limit-Over 1,000 dollars blocked
Efficiency Limit-Over 10 percent loss blocked
HOA Deadline-45 days or deemed approved
Enforcement-Civil court

Highlighted rows indicate differences between cities.

Castro Valley FAQ

Can my HOA require specific panel colors?

Only if it does not reduce efficiency by more than 10 percent or add more than 1,000 dollars in cost. All-black panels are typically acceptable, but restrictive tile-matching rules often fail this test.

What if my HOA delays my solar application?

Under Civil Code 714, failure to respond within 45 days constitutes approval. Document your submittal date and proceed if no decision is issued.

Fremont FAQ

Can my HOA deny my solar application?

Only if restrictions stay within Civil Code 714 limits; outright denial is nearly always unlawful.

What if my HOA is slow to respond?

After 45 days without decision under AB 2188, your application is deemed approved by operation of law.

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