Rather than a flat lot-coverage percentage, unincorporated Boulder County caps Residential Floor Area per parcel, generally the larger of the neighborhood median or a set square-footage bonus over existing floor area, plus minimum lot sizes per zoning district (e.g., 35 acres in Agricultural).
Boulder County's May 2025 Land Use Code controls building intensity through maximum Residential Floor Area rather than a simple coverage ratio. Unless otherwise specified, the maximum Residential Floor Area for a parcel is the larger of the median Residential Floor Area of the defined Neighborhood or a bonus over existing floor area, for example an additional 1,000 square feet on a parcel with 1,500 square feet or less. The Assessor's records and Community Planning & Permitting determine the neighborhood median. Minimum lot sizes also apply by district (35 acres unsubdivided in most districts; 7,500 sq. ft. in Suburban/Multifamily with water and sewer). The Director may limit floor area further as a mitigation measure.
Exceeding the maximum Residential Floor Area without approval can result in permit denial or a Site Plan Review requirement; unpermitted floor area is a code violation subject to enforcement.
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Longmont, CO
Longmont's updated LMC 15.05.040 (effective January 1, 2026) bans artificial turf as a 'non-functional turf' replacement in tree lawns, medians, parking-lot ...
Longmont, CO
Effective January 1, 2026, LMC Section 15.05.040 requires drought-tolerant vegetation or native ground cover to be the primary ground cover in landscaped are...
Longmont, CO
Per LMC § 15.04.050(D)(4), Longmont food trucks may operate only in non-residential zoning districts (ice cream vendors are allowed in residential zones), mu...
Longmont, CO
Operating a food truck or pushcart in Longmont requires an annual Mobile Retail Food Vending Permit from the Building Services Division, plus a Longmont busi...
Longmont, CO
Federal law (FAA Part 107 and 49 U.S.C. § 44809 for recreational flyers) governs U.S. airspace and Longmont cannot regulate altitude or flight paths. The Cit...
Longmont, CO
Under LMC 6.44.090 (cited by Longmont Code Enforcement), no garage sale in Longmont may run for more than 3 consecutive days, and no more than 12 total days ...
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