The Hiddenbrooke Architectural Review Committee (HARC), as authorized by the Covenants, Conditions, and Restrictions (CC&Rs), holds the authority to review and approve all exterior changes to ensure our neighborhood remains a desirable and well-maintained community. These are not just recommendations — they are enforceable rules and guidelines designed to protect property values and preserve the architectural integrity of Hiddenbrooke.

As stated in Article 8 of the CC&Rs, which is attached to each property deed:

“No exterior addition or modification of any kind shall be commenced until it has been approved in writing by HARC.”

Mission Statement:  To preserve and promote a cohesive, distinctive architectural identity throughout Hiddenbrooke —one that authentically reflects the timeless charm and character of historic inland Mediterranean villages, with particular inspiration drawn from the villas of Tuscany, Italy, and Provence, France.

These architectural traditions, rooted in centuries of vernacular design, are particularly well-suited to Hiddenbrooke’s natural topography, native vegetation, and Mediterranean-like climate. This synergy fosters both environmental harmony and a deep sense of cultural continuity. Characterized by rustic stone facades, low-pitched tile roofs, deeply recessed openings, shaded arcades, and earth-toned materials, these styles have a long-standing presence in the Bay Area and Napa Valley.  Their thoughtful integration into Hiddenbrooke has helped establish a timeless architectural identity — one that is both regionally appropriate and historically grounded.

New Construction – Custom Homes and Major Additions:  All custom homes and significant additions require multiple rounds of review by HARC before receiving final approval.

Maintenance, Repair, and Replacement: According to Article 6 of the CC&Rs, routine maintenance, repairs, and replacements generally do not require prior approval from HARC.  These activities are defined as actions undertaken to maintain the property in a “good condition and state of repair.”

Improvements and Modifications: As outlined in Article 8 of the CC&Rs and the Hiddenbrooke Landscape and Design Guidelines, certain modifications require written approval from HARC before the commencement of any work.  Examples include:

• Repainting of houses or staining of fences
• Installation of hardscape elements such as sidewalks, patios, or driveways
• Construction of shade structures, including patio covers, gazebos, or pergolas
• Installation of accessory structures such as ADUs, sheds, or pool houses
• Landscaping alterations, including lawn replacement
• Significant pruning or removal of trees or large plants
• Any other structural or visually impactful changes to the property
• Installation of solar panels or systems.

These guidelines help preserve the architectural integrity and visual harmony of the Hiddenbrooke community.

HARC meets on the second Wednesday of every month, January through November. Applications are due ten days before the meeting. HARC applicants must be in ‘Good Standing’ with the HPOA to be approved.

City of Vallejo Building Permits: Some projects may require permits from the City of Vallejo. While HARC is aware of certain permit requirements, it does not maintain a comprehensive list. A current list of permit requirements can be found on the City of Vallejo’s official website. HARC will accept all applications; however, modifications may require permits from the City of Vallejo. We recommend obtaining HARC approval before submitting to the City to avoid multiple permit submissions. If the City changes the submission, HARC must be notified and may require additional changes. 

It is the applicant’s sole responsibility to determine whether a city permit is required.

If you’re uncertain whether your project qualifies as routine maintenance or constitutes a modification requiring approval, we strongly recommend contacting HARC in advance to avoid misunderstandings or potential fines.  You may reach us at hharc@protonmail.com.