Commissioners Approve Accessory Dwelling Unit Code Amendment — Fourmile Canyon Area
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.
Wildfire risk mapping conducted by Wildfire Partners shows that 33% of properties in the Louisville area are within the wildland-urban interface. Free home assessments are available through the Wildfire Partners program, with rebates of up to $2,500 for mitigation improvements.
The project includes improvements along Flagstaff Road between Louisville and the intersection with Niwot Road. Construction is scheduled to begin in May 2026 with completion expected within 8 months.
Related Programs
A community information session will be held at the Louisville library on Sunday, June 7 at 6:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.
Environmental review of the project area near Flagstaff Road found 3 sensitive species and 2 wetland areas requiring mitigation. The Area Agency on Aging worked with Colorado Parks and Wildlife to develop a habitat conservation plan.
Eligibility
Transportation access remains a key concern. Boulder County’s Via mobility program provides door-to-door transit service for residents in Louisville and surrounding communities who cannot access fixed-route bus service. RTD routes B, J, and BOLT serve major corridors.
Public comment on this matter can be submitted through the Boulder County online portal, by email to Area Agency on Aging, 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.
Leave a Reply