Pine Brook Hills Community Briefing: Commissioners Approve Accessory Dwelling Unit Code Amendment
The Board of County Commissioners has approved amendments to the Boulder County Land Use Code to streamline the process for building Accessory Dwelling Units (ADUs) on residential properties in unincorporated areas. Changes include reduced setback requirements, simplified design standards, and by-right approval for units under 800 square feet.
Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $297,000, making it one of the largest collaborative efforts in the county’s history.
Affordable housing remains the top priority identified in the 2026 Community Survey. Boulder County’s Worthy Cause program has funded 556 affordable housing units since its inception, with 53 additional units in the development pipeline.
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Historical context: Boulder County was established in 1861 and covers 741 square miles of diverse terrain from the Great Plains to the Continental Divide. The county’s population of approximately 330,000 residents is served by 2100 county employees across 46 departments and offices.
Public comment on this matter can be submitted through the Boulder County online portal, by email to Community Planning & Permitting, or in person at the next Board of County Commissioners meeting. Written comments received by 5:00 PM the day before the hearing will be included in the public record.
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