Longmont council to consider annexation proposal for mixed housing near Clover Basin
The proposed Dry Creek annexation would allow housing on 7.95 acres, subject to density limits, affordable-housing requirements and infrastructure conditions if the city approves it.
Longmont City Council is scheduled to consider annexing 7.95 acres near Clover Basin Drive and Airport Road for mixed housing, but the proposal does not set a final number of homes or a site layout.
The council is scheduled to consider the Dry Creek annexation and concept plan at a first reading Sept. 22 and a second-reading public hearing Oct. 6. The Planning and Zoning Commission recommended approval in December 2025 by a 6-1 vote, according to the city’s meeting packet.
The property, along Airport Road between Quail Road and Clover Basin Drive, is in unincorporated Boulder County. The proposed Residential Mixed Neighborhood zoning would permit detached, attached and multifamily housing.
The concept plan sets density limits rather than a fixed number of homes: up to seven dwelling units per acre for an entirely detached development and up to 15 units per acre for an entirely attached or multifamily development. A mixed project’s maximum would depend on the acreage devoted to each housing type.
The applicant’s narrative describes fee-simple residential lots at 15 units per acre or less and says no apartment buildings are planned, though townhome buildings with five or more units could be proposed. A traffic study modeled a 120-home scenario on an approximately 8.3-acre study area and estimated 864 daily vehicle trips. That scenario is a projection, not an approved project size, and does not precisely match the 7.95-acre annexation area.
The primary vehicle access is expected from Clover Basin Drive. The traffic study recommends a westbound right-turn lane at the project entrance and signal-timing changes at Airport Road and Clover Basin Drive. The proposed annexation agreement would require the owner to update the traffic study with each final plat and pay for or construct applicable transportation improvements.
The proposal anticipates connections to existing water lines in Clover Basin Drive and Quail Road. The applicant’s materials say the existing septic system would be abandoned in favor of an 8-inch sanitary sewer north of Quail Road. The agreement would not guarantee utility extensions or future development rights; extensions would remain at the city’s discretion.
If housing is built, the draft agreement would require affordable housing under Longmont Municipal Code Chapter 15.05.220. The applicant says it anticipates providing 12% of the housing on site, but the materials do not specify the number of affordable units, their income levels, bedroom mix, tenure or delivery schedule.
Annexation would not take effect immediately after a council vote. The draft ordinance requires administrative steps within one year, including transferring historical water rights and paying recording fees. After the city certifies those requirements, it would record the ordinance, annexation map or maps, concept plan and agreement; the annexation would become effective upon recording.