Castle Rock, CO Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- R-1 principal max
- 35 feet
- R-1 accessory max
- 20 feet
- Code section
- CRMC 17.18.040(F)
- Exempt features
- Chimneys, spires, antennas
- Overlay
- Skyline/Ridgeline (Ch. 17.48)
Summary
In the R-1 district, principal buildings may be up to 35 feet tall and accessory buildings up to 20 feet. Skyline/Ridgeline overlay areas may impose stricter limits to protect views.
F. Maximum height of buildings: 1. Principal buildings, 35-feet. 2. Accessory buildings, 20-feet.
Full Breakdown
CRMC 17.18.040(F) caps R-1 principal buildings at 35 feet and accessory buildings at 20 feet. Height limits do not apply to church spires, belfries, cupolas, chimneys, ventilators, skylights, parapet walls, antennas, or necessary mechanical appurtenances usually carried above the roof (17.52.050). Properties within the Skyline/Ridgeline Protection Regulations (Chapter 17.48) face additional height controls and mitigation in visually sensitive areas. Other zoning districts and PD zones set their own maximum heights, so check the district that applies to your lot.
Violations & Fines
Exceeding the maximum height without a variance is a zoning violation; permits can be denied and structures ordered modified.
Frequently Asked Questions
How tall can I build in R-1?
Does a chimney count toward the height limit?
Sources & Official References
Other rules in Castle Rock
Compare Castle Rock to another location·View the Colorado building setbacks & zoning overview
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