Skip to main content
CityRuleLookup

Boulder 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

Pre-Aug 29, 1994 plats
35 feet maximum
Other land
30 feet maximum
Residential hard cap
Never exceed 35 feet
Non-residential districts
Up to 50 feet
Height reduction
Possible via Site Plan Review

Summary

In unincorporated Boulder County, residential structures on land platted before August 29, 1994 may reach 35 feet; on other land the maximum is 30 feet, and in no event may any residential structure exceed 35 feet. Some districts allow up to 50 feet for non-residential uses.

City-specific rules exist: Longmont, and Boulder have their own structure height limits rules that differ from Boulder County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

On any other land, 30 feet unless, through a subdivided land approval or Site Plan Review approval, a lower or higher height is permitted due to the unique characteristics of the particular site; in no event, however, shall any residential structure exceed 35 feet.

Full Breakdown

Boulder County Land Use Code Article 4 sets maximum building height. On subdivided land with a final plat approved before August 29, 1994, the limit is 35 feet unless a lower height was set through platting. On any other land the limit is 30 feet, unless a subdivision or Site Plan Review approval permits a different height for unique site characteristics, but in no event may any residential structure exceed 35 feet. The Director may require a reduced height as a Site Plan Review mitigation measure. The Article 4 zoning table shows district height caps, generally 30 feet, but 50 feet for Multifamily, Transitional, Business, Commercial, and Industrial districts.

Violations & Fines

Exceeding the maximum height without approval is a Land Use Code violation; the county can deny permits, require modification, or take enforcement action.

Frequently Asked Questions

How tall can my house be in unincorporated Boulder County?
Generally 30 feet, or 35 feet if your land was platted before August 29, 1994. In no event may any residential structure exceed 35 feet.
Can I get approval for a taller building?
A subdivision or Site Plan Review approval may permit a higher (or lower) height for unique site characteristics, but the 35-foot residential hard cap still applies.

Sources & Official References

Other rules in Boulder County

All Boulder County rules

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

Get notified when Structure Height Limits in Boulder County, CO changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.

Structure Height Limits in Cities Across Boulder County