Garage conversion rules in Weld County, CO — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
In unincorporated Weld County, converting a garage into living space creates an accessory dwelling unit. An ADU may be contained within a single-family dwelling, but only one ADU is allowed per legal lot and it must meet Chapter 23 zoning and building-permit requirements.
Weld County has no standalone garage-conversion ordinance; turning a garage into habitable space produces an ADU governed by Section 23-4-600. The code expressly allows an ADU to be attached to, detached from, or contained within a single-family dwelling, so a garage-to-living-space conversion is regulated as that ADU. It is limited to one per legal lot, is barred on a lot with a duplex, and must meet the applicable zone's bulk requirements plus building-permit and life-safety standards under Chapter 29. Inside Greeley or Evans, the cities' own codes control garage conversions. Because a converted garage becomes habitable space, plan review and permits are required; confirm with Weld County Planning Services before starting.
An unpermitted garage-to-dwelling conversion is a zoning and building-code violation handled by Weld County Code Compliance and Building Inspection, with stop-work orders, required retroactive permits, or an order to restore the garage.
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