Commissioners Approve Accessory Dwelling Unit Code Amendment — December 2025
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 6 sensitive species and 2 wetland areas requiring mitigation. The Sheriff’s Office worked with Colorado Parks and Wildlife to develop a habitat conservation plan.
The project includes improvements along SH-7 / Ute Highway between Gunbarrel and the intersection with Foothills Highway. Construction is scheduled to begin in May 2026 with completion expected within 7 months.
Eligibility
According to Diana Orozco, director of Sheriff’s Office, this program served 29% more residents in 2024 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Gunbarrel and the surrounding area,” Diana Orozco said.
Colorado state law requires all counties to provide these services to eligible residents. Boulder County exceeds minimum state requirements by offering expanded hours, multilingual support, and online access. In 2024, the county received a state award for excellence in service delivery.
Resources
The Carolyn Holmberg Preserve open space property encompasses 1,860 acres and features 14 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.
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