Loveland, CO Building Setbacks & Zoning: Setback Rules (2026)

Loveland UDC Title 18 (Unified Development Code) regulates residential-zone setbacks through dimensional standards established for each zoning district. Per UDC Part 5 (Measurement, Word Usage, and Definitions), setbacks are 'the minimum required distances between lot lines and buildings or structures, generally measured as an offset from the referenced lot lines toward the interior of the lot.' Front setbacks are measured from the front property line; interior side setbacks from side property lines that are not street right-of-way boundaries; street-side setbacks from side property lines abutting a street (corner lots); and rear setbacks from the rear property line. Typical residential-zone setbacks in Loveland (verify the current dimensional standards table in UDC Part 2 for your zone): R1 / R1e Estate Residential - larger lot, front 25 ft, side 10 ft, rear 25 ft; R1 Standard Single-Family - front 20-25 ft, side 5-10 ft, rear 15-25 ft; R2 Two-Family / Duplex - front 20 ft, side 5-10 ft, rear 15-20 ft; R3 / R3e Multi-Family - front 15-20 ft, side 5-10 ft, rear 10-20 ft; R-MUR Mixed-Use Residential - context-driven setbacks tied to street frontage and adjacency. Detached accessory structures (sheds, detached garages, carports, detached ADUs) typically require a 5 ft setback from interior side and rear property lines, a 10 ft setback from a street-side property line on corner lots, and must sit behind the front building line of the principal dwelling. Accessory dwelling units located in a detached structure are subject to the accessory-structure setback requirements within the applicable zoning district - if the lot abuts an alley, a detached ADU may be set back as little as 5 ft from the rear property line on the alley side. Allowed encroachments into setbacks (cantilevered bay windows, eaves, chimneys, decks below a certain height, HVAC equipment, ramps for accessibility) are specifically enumerated in UDC Title 18 and are generally limited to projections of 2-6 ft no closer than 3 ft to a property line. Floodplain setbacks along the Big Thompson River and tributaries (FEMA Special Flood Hazard Area) add additional restrictions under UDC Part 3 Site Design and Environmental Quality. A property-specific zoning verification can be obtained from Loveland Current Planning at (970) 962-2523 or through the city's online Property Zoning Information tool.