July 2026: Commissioners Approve Accessory Dwelling Unit Code Amendment

July 2026: 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.

Environmental review of the project area near SH-7 / Ute Highway found 12 sensitive species and 2 wetland areas requiring mitigation. The Community Planning & Permitting worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

The Anne U. White open space property encompasses 182 acres and features 10 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.

Details

Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $182,000, making it one of the largest collaborative efforts in the county’s history.

The Board of County Commissioners will review progress on this initiative at their June 12 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.