Garage Conversion Contractor in Phoenix
Radiant Construction is a licensed garage conversion contractor in Phoenix. We turn garages into bedrooms, offices, and legal ADU casitas the right way: permitted, inspected, and built to be counted as real square footage when it matters.
Get a Free EstimateHere is the first thing to know, because it is the thing the internet is full of anxious questions about: a garage conversion in Phoenix requires a permit. Not sometimes. Converting a garage to living space is a change of use, and doing it off the books creates a problem that surfaces at the worst possible moments: the appraisal, the insurance claim, the sale of your house. The good news is that done legally, a garage conversion is one of the cheapest square footage you will ever add, because the foundation, roof, and walls are already standing.
What a legal garage conversion involves
- The permit, pulled by us under license ROC #367703, so the finished space officially counts as living area.
- Insulation and drywall that bring a bare block or framed garage up to livable, Arizona-summer-proof standards.
- Electrical brought to code: outlets, lighting, and smoke detection to residential requirements.
- Heating and cooling, whether that is extending your existing HVAC or adding a dedicated mini-split.
- Egress and ceiling height requirements met, so the room is legal to sleep in, not just drywalled.
- The garage door question solved cleanly: framed and finished into a wall with a window, or preserved for conversion back.
- Flooring and finish that make the room feel like it was always part of the house, not a converted garage.
Bedroom, office, or full casita
The simplest conversions become a bedroom, office, or family room. The most valuable ones become an accessory dwelling unit: a casita with its own bathroom and entrance that can house family or generate rent. Phoenix and Arizona ADU rules have opened up meaningfully in recent years, and the garage is usually the most affordable path to a legal ADU on your lot. We will tell you honestly which path your property supports before you spend real money on plans.
Why hire a general contractor for this
A garage conversion touches framing, electrical, HVAC, insulation, sometimes plumbing, and always the permit office. That is general contracting, not a handyman weekend. Radiant is licensed and bonded for the whole scope, and you can verify our license before we ever set foot in your garage. Thinking bigger than the garage? See our whole home remodels and structural work.
Garage conversion questions, answered straight
Do I need a permit to convert my garage in Phoenix?
Yes. Converting a garage to living space changes the use of the structure, and Phoenix and the surrounding Valley cities require a building permit for it. The conversion has to meet residential code for insulation, electrical, ventilation, ceiling height, and emergency egress. Unpermitted conversions routinely surface during appraisals, insurance claims, and home sales, where they cost far more to fix or legalize than permitting would have cost up front.
Can I convert my garage into an ADU or casita I can rent out?
In many cases, yes. Phoenix and Arizona rules around accessory dwelling units have opened up significantly in recent years, and a garage is often the most affordable path to a legal casita. The answer depends on your lot, your city, and what the conversion needs to include (like a kitchen and separate entrance), so we start every ADU conversation with a feasibility check before anyone spends real money.
How much does a garage conversion cost in Phoenix?
It depends on what the space needs to become. A garage that becomes a simple bedroom or office costs far less than one that becomes a legal rental casita with a bathroom and kitchenette, because plumbing, HVAC, and kitchen work drive the budget. The structure of your existing garage matters too. We give firm numbers after a walkthrough, and the estimate is free.
Will converting my garage hurt my home's resale value?
A permitted, well-built conversion that adds usable square footage generally helps value, especially as an ADU with rental potential. An unpermitted conversion does the opposite: appraisers may refuse to count the square footage, buyers' lenders can flag it, and you may be forced to tear out or legalize the work to close a sale. The permit is what turns a conversion from a liability into an asset.
Ready to talk about your project?
Tell us what you are hoping to do and we will give you an honest read on scope, permits, and budget. The estimate is free and so is the straight answer.
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