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Ontario, CA HOA Rules: Architectural Review (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing section
Civil Code 4765
Written procedure
Required
Appeal
Required
Solar protection
Civil Code 714
Drought landscaping
Civil Code 4735

Summary

Ontario HOAs running an architectural review committee must follow Civil Code 4765 requirements for written procedures, prompt decisions, appeal rights, and protection of solar installations under Civil Code 714.

Civil Code - CIV. 4765. (a) This section applies if the governing documents require association approval before a member may make a physical change to the member's separate interest or to the common area. In reviewing and approving or disapproving a proposed change, the association shall satisfy the following requirements: (1) The association shall provide a fair, reasonable, and expeditious procedure for making its decision. The procedure shall be included in the association's governing documents. The procedure shall provide for prompt deadlines. The procedure shall state the maximum time for response to an application or a request for reconsideration by the board. (2) A decision on a proposed change shall be made in good faith and may not be unreasonable, arbitrary, or capricious. (3) Notwithstanding a contrary provision of the governing documents, a decision on a proposed change may not violate any governing provision of law, including, but not limited to, the Fair Employment and Housing Act (Part 2.8 (commencing with Section 12900) of Division 3 of Title 2 of the Government Code), or a building code or other applicable law governing land use or public safety. (4) A decision on a proposed change shall be in writing. If a proposed change is disapproved, the written decision shall include both an explanation of why the proposed change is disapproved and a description of the procedure for reconsideration of the decision by the board. (5) If a proposed change is disapproved, the applicant is entitled to reconsideration by the board, at an open meeting of the board. (c) An association shall annually provide its members with notice of any requirements for association approval of physical changes to property. The notice shall describe the types of changes that require association approval and shall include a copy of the procedure used to review and approve or disapprove a proposed change.

Source: California Civil Code 4765 (Architectural Review)View official code

Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.

Full Breakdown

Architectural review committees in Ontario HOAs are regulated by Davis-Stirling Civil Code 4765, which requires every HOA with a power to approve improvements to adopt a fair, reasonable, and expeditious written procedure. The procedure must be posted to members, must include a process for owners to submit applications, must provide a decision in writing within a reasonable time, must state the reasons for any denial, and must include an appeal mechanism heard by the board. Enforcement is only available if the HOA followed its own written procedure.

California Civil Code 714 is a strong protection for solar energy systems: HOA rules may not prohibit a reasonable solar installation, and any restriction must not significantly increase the cost or decrease the efficiency of the system beyond statutory thresholds. Civil Code 4735 similarly protects low-water-use landscaping during declared drought emergencies. ARC rules that conflict with these statutes are unenforceable. Owners denied an application should request written reasons and consider appealing or pursuing ADR under Civil Code 5950.

Frequently Asked Questions

Can my Ontario HOA deny my solar panels?
Only within narrow limits. Civil Code 714 prohibits rules that significantly raise the cost or reduce the efficiency of a reasonable residential solar system.
How long does the HOA have to decide my paint color request?
Davis-Stirling requires a written decision within a reasonable time using the HOA's posted procedure. If the HOA fails to follow its own rules, denial may be unenforceable.

Sources & Official References

Other rules in Ontario

All Ontario rules

California rules heatmap·Compare Ontario to another location·View the California hoa rules overview

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