Fort Collins, CO Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- Per-story cap
- 12 ft 8 in in most residential zones
- Roof rule
- 75% of roof above 7 ft grade
- Detached accessory building
- Max 8 ft unless setback-compliant
- Roof equipment exemption
- Up to 5% of roof area
- R-L zone max height
- 28 ft for single-family homes
- Applies to
- Applications filed before May 17, 2024
Summary
In most Fort Collins residential zones, each residential story is capped at 12 feet 8 inches from average grade to the eave or wall-plate line under Section 3.8.17(A)(2)(d) of the Transitional Land Use Code. That per-story cap layers on top of each zone district's overall building-height maximum, such as the 28-foot cap for single-family homes in the Low Density Residential District.
(d)A maximum vertical height of twelve (12) feet eight (8) inches shall be permitted for each residential story measured from average ground level at the center of all walls to the eave/wall intersection or wall plate height if there is no eave, or from floor to floor, or from floor to eave/wall intersection or wall plate height as applicable. This maximum vertical height shall apply only in the following zone districts: U-E; R-F; R-L; L-M-N; M-M-N; N-C-L; N-C-M; N-C-B; R-C; C-C-N; N-C; H-C; and M-H.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Municipal Code: Supplement 155 | Transitional Land Use Code (for project before May 17, 2024): Supplement 61 | Traffic Code: Supplement 27).
Full Breakdown
17(A)(2)(d) sets a maximum vertical height of 12 feet 8 inches for each residential story, measured from average ground level at the center of all walls to the eave/wall intersection or wall-plate height, applying in the U-E, R-F, R-L, L-M-N, M-M-N, N-C-L, N-C-M, N-C-B, R-C, C-C-N, N-C, H-C, and M-H districts. 17(B)(3) caps a detached accessory building at 8 feet unless it meets the full yard setbacks that apply to a principal building in that district. 17(C) exempts chimneys, cooling towers, elevator bulkheads, and similar rooftop equipment covering no more than 5 percent of roof area, along with fire towers, utility poles, belfries, monuments, and solar energy systems, from the height rules entirely.
17(A)(3), capping new construction at the midpoint between the zone district's maximum and an abutting home's existing height on the same street. 4(D)(2)(e) sets the overall maximum at 28 feet for a single-family dwelling, group home, or child care center, and three stories for other uses. These standards govern development applications and building permits submitted before May 17, 2024, under the Transitional Land Use Code; Fort Collins' new Land Use Code took effect that date.
Violations & Fines
The Building and Zoning Director reviews building-permit plans against these caps before issuing a permit; a design that exceeds the per-story or overall zone-district height maximum is returned for revision, and a certificate of occupancy will not issue for a structure built taller than what its approved plans and the applicable district standard allow.
Frequently Asked Questions
How tall can each story of my house be in Fort Collins?
How tall can my detached garage or shed be?
Are chimneys and rooftop equipment counted toward the height limit?
Can I build taller than my neighbor's roofline?
Sources & Official References
Other rules in Fort Collins
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Structure Height Limits in Nearby Cities
How other cities in Larimer County handle structure height limits.