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.
Data from the 2025 Boulder County Community Survey shows that 65% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 5,411 responses from residents across the county.
The Clerk & Recorder processed over 2,729 applications last year, with an average processing time of 9 business days. Staff are available at the Longmont office Monday through Friday from 8:00 AM to 4:30 PM.
Eligibility
Safety data from the Longmont area shows 5 reported incidents in the past 12 months, a 11% change from the previous year. The Sheriff’s Office has increased patrols along 63rd Street and added community outreach programs in response to resident feedback.
Volunteers contributed over 2,312 hours to this program last year. The Clerk & Recorder coordinates with 21 nonprofit partner organizations throughout Boulder County to deliver services.
Resources
For questions about this program, contact Kevin Larsen at Clerk & Recorder: (303) 441-9604 or email Clerk & [email protected]. Office hours are Monday through Friday, 8:00 AM to 4:30 PM. Walk-in services are available at the Longmont office without an appointment.
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