Littleton City Council adopts ADU, land‑use updates after lengthy public hearing

Littleton City Council voted to adopt two amendments to Title 10 of the city’s Unified Land Use Code on second reading Tuesday, approving changes to accessory dwelling unit (ADU) rules and a separate package of 2024 legislative updates that modify occupancy, turf and parking standards.

The measures—Ordinance 9 of 2025 (ADU code text amendments) and Ordinance 10 of 2025 (2024 legislative updates)—were approved after a public hearing and extended public comment. Both passed 6–1, with Council Member Patrick Driscoll casting the lone “no” vote on each. The consent agenda that preceded the hearing, which bundled several unrelated ordinances and resolutions, was approved unanimously earlier in the meeting.

City staff said the changes are required or encouraged by recent state laws and also reflect the city’s own housing objectives. Andrea Vaughn, senior planner in Community Development, summarized the state ADU law and staff recommendations: “The state legislation requires that all municipalities allow for the construction of ADUs wherever a single‑family detached home is permitted,” Vaughn said, and staff proposed additional local allowances—most notably permitting some detached ADUs up to 1,000 square feet and allowing detached ADUs up to the maximum height of the zone district in some circumstances.

Why it matters

Council and staff said the ordinance implements Colorado House Bill 24‑1152 (the state ADU law) and aims to reduce barriers for homeowners who want to add small rental units or caregiving spaces. Supporters argued ADUs add “gentle density” and provide more housing options for workers, young families and aging…