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Adams County, CO Building Setbacks & Zoning: Structure Height Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Key Facts

R-1-C / R-2 dwelling
25 feet
R-1-C / R-2 accessory
16 feet
R-3 / R-4 principal
35 feet
A-1 / A-2 dwelling
35 feet
Farm structures
Up to 70 feet

Summary

In unincorporated Adams County, dwellings in the R-1-C and R-2 districts are capped at 25 feet, and accessory structures at 16 feet. Agricultural (A-1/A-2) dwellings may reach 35 feet, with farm structures up to 70 feet.

City-specific rules exist: Westminster has its own structure height limits rules that differ from Adams County's county-level regulations. If you live in Westminster, check the city-specific page instead.

The maximum height of dwellings in a Residential-1-C District shall be twenty-five (25) feet.

Full Breakdown

Adams County DSR Section 3-13 caps the maximum height of dwellings in the R-1-C District at 25 feet and accessory structures at 16 feet; R-2 (Section 3-14) is identical. In the higher-density R-3 and R-4 districts, principal structures may reach 35 feet with 16-foot accessory structures. Agricultural-1 and Agricultural-2 dwellings and accessory structures are capped at 35 feet, while agricultural (farm) structures may reach 70 feet, except on subdivision-platted lots where the max is 25 feet. Height is measured to the highest point of the structure. Incorporated cities apply their own height limits.

Violations & Fines

A structure exceeding the district height limit is a zoning violation requiring a height variance (Board of Adjustment) or reduction. County zoning violations are enforced under CRS 30-28-124.

Frequently Asked Questions

How tall can a house be in unincorporated Adams County?
In the R-1-C and R-2 districts, dwellings are capped at 25 feet and accessory structures at 16 feet. R-3/R-4 and agricultural dwellings may reach 35 feet.
Can agricultural buildings be taller?
Yes. Agricultural (farm) structures in A-1 and A-2 districts may reach 70 feet, except on recorded-subdivision-plat lots where the maximum is 25 feet.

Sources & Official References

Other rules in Adams County

All Adams County rules

Compare Adams County to another location·View the Colorado building setbacks & zoning overview

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Structure Height Limits in Cities Across Adams County