Garage Addition Cost in Colorado
2026 estimates — 1-car, 2-car, and 3-car garage addition pricing
2-car attached garage (22×24 ft), mid-level finish, Colorado labor rates. Updated June 2026.
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Garage Addition Cost by Size — Colorado 2026
| Garage Type | CO Estimate |
|---|---|
| 1-car attached (14×22 ft) | $25,000 |
| 2-car attached (22×24 ft) | $37,000 |
| 2-car detached (22×24 ft) | $44,000 |
| 3-car (30×24 ft) | $58,000 |
Mid-level finish including foundation, framing, electrical, doors, and exterior match. Colorado rates applied.
FAQs — Garage Addition Cost in Colorado
Garage addition in Colorado averages $31,000 for a 2-car attached garage in 2026 — above the national average. 1-car attached runs $NaN; 2-car detached $NaN.
A 2-car garage addition in Colorado recoups approximately 80–90% of its cost at resale, making it one of the best home improvement investments. In markets where homes without garages are uncommon, ROI can exceed 100%. For a $31,000 garage, expect to add $24,800–$27,280 in home value. Beyond ROI: vehicle protection reduces car depreciation by $500–$1,500/year, and garages dramatically improve home desirability.
Yes — garage additions require building permits in virtually all Colorado jurisdictions. This involves structural, electrical, and drainage permits. Permit costs typically run $500–$1,500 in Colorado. In coastal and wildfire-prone areas, additional requirements (fire separation, hurricane straps) add cost and inspection requirements. Never build without permits — unpermitted garages create major complications at home sale.
Attached garages in Colorado cost 15–25% less than detached ($NaN vs. $NaN for 1-car). Attached provides direct home access — especially valuable in Colorado. Detached is better for workshops (noise/fumes), has more design flexibility, and slightly higher standalone resale value. For most Colorado homeowners, an attached 2-car garage is the best investment.
A typical 2-car garage addition in Colorado takes 6–12 weeks from permit approval to completion. Permitting is often the longest step — Colorado jurisdictions vary widely (2–8 weeks). Site prep and foundation: 1 week. Framing and roofing: 1–2 weeks. Exterior and electrical: 2 weeks. Inspections and completion: 1–2 weeks. Winter weather in northern Colorado areas can add delays for concrete curing and exterior work.
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- →2-car attached avg: $31,000
- →1-car: $ / 3-car: $
- →Range: $23,000 – $45,000
- →Cost index: above national avg