Garage Conversion ADU

Your garage is already a structure with a foundation, walls, and a roof. Converting it into a casita is often the fastest and most affordable way to add an ADU to your Tucson property.

Why Convert Your Garage?

Garage conversions are the most budget-friendly path to adding an accessory dwelling unit. Since the basic structure already exists, you save significantly on foundation work, framing, roofing, and exterior finishes. Most garage conversions in Tucson cost 40-60% less than building a detached ADU from scratch.

In Tucson's climate, most homeowners use their garage more for storage than parking. If you're paying to heat and cool a living space while your car sits in 110-degree heat anyway, a garage conversion puts that square footage to much better use.

What a Garage Conversion Includes

Insulation and climate control (critical for Tucson heat)
New flooring (concrete leveling + finished floor)
Full bathroom addition with plumbing
Kitchenette or full kitchen installation
Electrical upgrades to residential code
Window and door replacements
Garage door replacement with wall/window
Interior partition walls
Private entrance (separate from main home)
Exterior finish to match your home

Garage Conversion Costs in Tucson

1-car garage (~200-250 sq ft) $60,000 - $90,000
2-car garage (~400-500 sq ft) $80,000 - $130,000
3-car garage (~600-700 sq ft) $100,000 - $160,000

Costs vary based on existing garage condition, plumbing distances, electrical panel capacity, and finish selections.

Is My Garage a Good Candidate?

Not every garage is ideal for conversion, but most are. Here's what we look at during our free site assessment:

  • Foundation condition: Concrete slab in good shape? Any major cracks or settling?
  • Ceiling height: Most garages have 8-9 ft ceilings, which is sufficient. We can raise the roof if needed.
  • Plumbing access: How close is the nearest sewer line? This affects bathroom and kitchen placement costs.
  • Electrical panel: Does your current panel have capacity for a second dwelling, or does it need an upgrade?
  • Setbacks and zoning: Does the conversion comply with Tucson or Pima County ADU regulations?

Free Garage Assessment

We'll evaluate your garage's conversion potential and provide an honest estimate. No obligation.

Get Free Assessment

or call (520) 555-1234