Tiny home rules in Weld County, CO — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
In the unincorporated Agricultural zone, Weld County allows one single-family dwelling per legal lot. A site-built tiny home on a foundation is that dwelling (or an ADU); a tiny house on wheels is treated as a recreational vehicle and cannot be a permanent residence.
Weld County Code Chapter 23 does not have a dedicated tiny-home category, so a tiny home is regulated by how it is built. Section 23-3-20 allows one single-family dwelling or group home per legal lot in the Agricultural zone; a permanent, site-built tiny house on a foundation is that dwelling and must meet building code, or it can be your one allowed ADU under Section 23-4-600. A tiny house on wheels is a recreational vehicle under Division 3 (Manufactured Homes, Manufactured Structures, and Occupied Recreational Vehicles) and generally may not be occupied as a permanent home on a residential lot. Cities of Greeley and Evans set separate rules. Confirm classification with Weld County Planning Services first.
Placing a second dwelling beyond the one allowed, or living permanently in an RV or tiny house on wheels outside code, is a zoning violation enforced by Weld County Code Compliance under Chapter 23, Article X.
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See how Weld County's tiny homes rules stack up against other locations.
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