Tiny home rules in Castle Rock, 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.
Castle Rock has no dedicated tiny-home ordinance. A tiny house on a permanent foundation must meet the adopted International Residential Code (Title 15) and zoning district standards. A tiny house built as a second unit is regulated as an ADU under Chapter 17.61. Tiny houses on wheels (RVs) cannot be
There is no separate tiny-home code in Castle Rock. A site-built tiny house on a foundation is simply a small single-family dwelling and must satisfy the building code, zoning setbacks, and district requirements. If placed as a second dwelling on a lot with an existing home, it is treated as an accessory dwelling unit under Chapter 17.61 (one per lot, deed restriction, no separate utility taps). A movable tiny house on wheels is classified as a recreational vehicle and may not be occupied as a permanent residence in a residential district. Confirm your specific plan with Development Services.
Living in a tiny house on wheels as a permanent residence, or building a foundation tiny home without permits, is a code violation subject to enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Castle Rock, CO
Backyard composting is allowed in Castle Rock with no Town permit; residents just avoid meat, dairy, and oily foods that attract pests. Yard waste can go to ...
Castle Rock, CO
Colorado's 2024 turf law (SB24-005, amended by HB25-1113) bans nonfunctional and nonfunctional artificial turf on new nonresidential and common-interest proj...
Castle Rock, CO
Colorado law protects a homeowner's right to install water-wise and native landscaping. Under SB23-178, HOAs cannot ban drought-tolerant xeriscape or native ...
Castle Rock, CO
Colorado law lets Castle Rock residents collect rooftop rainwater in up to two rain barrels holding a combined 110 gallons, with no permit required. Barrels ...
Castle Rock, CO
Castle Rock Water restricts residential lawn irrigation to every third day, before 8 a.m. or after 8 p.m., from May 1 through Sept. 30. Your watering days co...
Castle Rock, CO
Castle Rock's Municipal Code limits weed height to 12 inches and, together with the Colorado Noxious Weed Act (CRS 35-5.5), requires property owners to contr...
See how Castle Rock's tiny homes rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.