A carport is an accessory structure and is regulated under Castle Rock's Zoning Code (Title 17) like other accessory buildings: it must respect required setbacks, meet the accessory-structure height limit, and typically requires a building permit. HOA covenants in many Castle Rock subdivisions add stricter design rules.
Castle Rock does not publish a standalone carport ordinance; a carport is treated as a detached or attached accessory structure under Title 17 zoning standards for setbacks, height (about 20 feet in R-1), and lot placement. Because a carport is a permanent roofed structure, a building permit under the adopted International Residential Code (Title 15) generally applies; confirm with the Development Services Building Counter (720-733-3527). Many Castle Rock neighborhoods are governed by HOAs whose covenants restrict or prohibit carports independent of Town code.
An unpermitted carport, or one intruding into a required setback, is a zoning/building violation subject to correction orders and potential removal.
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