Cost to Garage Conversion in Denver, CO

$11,200–$33,600 in Denver

12% above the national average · 1.12x cost multiplier

Expect to pay $11,200–$33,600 for a garage conversion in Denver, about 12% above the national benchmark. The Mountain West region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at Denver prices.

Cost Breakdown in Denver

Line Item	Low	Mid	High
Materials	$3,920	$7,840	$14,560
Labor	$6,720	$12,320	$26,880
Permits	$560	$1,120	$1,680
Total	$11,200+12% vs. national avg	$22,400+12% vs. national avg	$44,800+12% vs. national avg

Budget

Basic single-car garage conversion to a bedroom or home office. Insulation, drywall, flooring (LVP), new window, HVAC extension to existing system, and electrical outlets. No plumbing, no structural changes. Functional but not luxury.

Mid-Range

Standard single-car garage to livable space (bedroom, office, or studio). Includes spray foam insulation, drywall, hardwood or tile flooring, HVAC mini-split for independent climate control, upgraded electrical, new exterior door, windows, and finishing work matching main house.

Premium

Double-car garage conversion to a full ADU, guest suite, or home gym with full bathroom. Includes plumbing rough-in and fixtures, kitchenette, mini-split HVAC, premium finishes matching the main home, proper egress windows, and full permit compliance for legal habitable space.

Material Options

Material prices below are national averages; availability in Denver may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
Basic Office/Bedroom Conversion (No Plumbing)	$25-$50/sq ft	Lowest cost, quickest completion, simpler permits	No bathroom adds inconvenience, may not qualify as legal ADU	Home offices, gyms, game rooms, non-rentable guest spacesLowest cost, quickest completion, simpler permits
Full ADU Conversion (with Bathroom and Kitchenette)	$75-$125/sq ft	Legal rentable unit generates income, adds significant home value	Highest cost and complexity, requires full permit process, longer construction timeline	Homeowners wanting rental income or multi-generational livingLegal rentable unit generates income, adds significant home value
Single-Car Garage Studio	$40-$80/sq ft	Good balance of functionality and cost, manageable permit process	Limited square footage (typically 200-250 sq ft), not suitable as primary living space	Home offices, artist studios, small guest roomsGood balance of functionality and cost, manageable permit process
Two-Car Garage to Living Space	$35-$65/sq ft	More square footage per dollar, room for multiple functions	Large permit impact, may require parking replacement in some municipalities	Families needing a bonus room, larger ADUs, home gym + office combinationsMore square footage per dollar, room for multiple functions
Detached Garage Conversion	$50-$100/sq ft	More privacy, often most ADU-permissible option	Requires running utilities from main house, potentially longer permit timeline	Rental ADUs, in-law suites, teen suitesMore privacy, often most ADU-permissible option

Other Projects in Denver

Full Kitchen Remodel

Full Bathroom Remodel

Basement Finishing

Back to national average for Garage Conversion

Denver Estimate

Typical Range

$11,200–$33,600

vs. National Average

12% above national

Cost Multiplier

1.12x

Estimates apply Denver's 1.12x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →