Converting a garage into living space costs about $12,000 to $26,000 in 2026 for an office, bedroom or family room, and $45,000 to $70,000 for a studio apartment with a kitchen and bathroom. Choose your garage size and room type below to get an itemized estimate.
Garage Conversion Cost Calculator
Cost breakdown
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| Total | $0 |
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How Much Does a Garage Conversion Cost in 2026?
Most garage conversions cost $12,000 to $26,000 in 2026, or about $45 to $70 per square foot. A simple one-car home office starts around $12,000, a two-car bedroom typically runs $19,000 to $26,000, and converting a garage into a studio apartment with a kitchen and bathroom costs $45,000 to $70,000 or more.
| Convert to | 1-car garage (240 sq ft) | 2-car garage (400 sq ft) |
|---|---|---|
| Home office | $12,300 – $17,400 | $16,100 – $22,700 |
| Bedroom | $14,500 – $20,400 | $18,700 – $26,400 |
| Family or living room | $13,700 – $19,400 | $18,200 – $25,700 |
| Home gym | $12,500 – $17,600 | $16,400 – $23,200 |
| Studio apartment (ADU) | $45,300 – $63,900 | $49,700 – $70,200 |
What’s Included in a Garage Conversion?
| Item | Typical cost | Notes |
|---|---|---|
| Frame in the garage door opening | $3,000 – $4,500 | Wall framing, insulation, siding and a window |
| Insulation, drywall and paint | $7 – $10 per sq ft | Walls and ceiling |
| Raised, insulated subfloor | About $5 per sq ft | Brings the floor level with the house and adds warmth |
| Flooring | $4.50 – $12 per sq ft | Carpet and vinyl plank on the low end, tile on the high end |
| Electrical | $1,500 – $3,500 | Outlets, lighting and new circuits; a panel upgrade adds about $2,500 |
| Heating and cooling | $1,200 – $4,500 | A ductless mini-split is the most common choice |
| Windows | About $650 each | Bedrooms need at least one egress window |
| Bathroom | $8,000 – $14,000 | Half or full bath, including plumbing through the slab |
| Kitchen or kitchenette | $7,500 – $15,000 | Needed for an apartment or ADU |
| Permits and plans | $400 – $5,000 | ADUs need the most review |
Garage Conversion Costs by Room Type
Home Office
An office is the cheapest conversion because it doesn’t need plumbing, a closet or a raised floor. Budget for good insulation, plenty of outlets, a dedicated circuit for equipment and a mini-split for year-round comfort. For ideas, read about our garage to office conversion.
Bedroom
To count as a legal bedroom, the room needs an egress window or exterior door, a smoke alarm, heat, and in most places a closet. Adding a half bath brings a two-car bedroom conversion to about $30,000; a full bath adds roughly $14,000.
Family Room or Home Gym
Living spaces cost about the same as a bedroom. A home gym can skip the raised floor and use rubber flooring over the existing slab, which keeps costs down and handles heavy weights better.
Studio Apartment or ADU
A garage apartment needs a full kitchen, a full bathroom and usually upgraded electrical service, so it costs two to three times as much as a single room. It can also bring in rental income. Compare it with a new build using our ADU construction cost calculator, and see our guest house conversion tips.
What Affects Garage Conversion Cost?
- Plumbing: adding a bathroom or kitchen is the single biggest cost jump, especially if the drain line has to be cut through the slab.
- The garage door opening: framing it in with a wall and window costs more than keeping the door, but most codes won’t approve a garage door as the wall of a bedroom.
- Floor level and condition: garage slabs are usually lower than the house and slope toward the door. A raised subfloor fixes both.
- Finish level: high-end finishes add about 20% to 25% over mid-range, and basic finishes save about 10%.
- Location: the same two-car bedroom costs about $19,200 in low-cost areas and $29,100 in high-cost metros.
Get Quotes from Local Contractors
Get at least three quotes from licensed general contractors who have done garage conversions. Ask each one to list the door infill, insulation, flooring, electrical, HVAC and permit costs separately so you can compare them line by line.
Before You Convert Your Garage
- Check zoning and parking rules. Some towns and HOAs require a set number of covered or off-street parking spaces, and an ADU may need its own approval.
- Get permits. Converting a garage to living space changes its use, so it almost always needs a building permit and inspections. Unpermitted conversions can cause problems when you sell.
- Plan for your stuff. Everything stored in the garage needs a new home. Compare that cost with our self storage cost calculator, or price a new detached garage with our garage cost calculator.
- Think about resale. In neighborhoods where buyers expect a garage, converting one may not pay off at sale. In areas with high rents, a legal ADU usually adds value.
- Plan the financing. See what a conversion would cost per month with our garage loan calculator.
How to Save on a Garage Conversion
- Skip plumbing if you can. A room without a bathroom costs far less.
- Do the painting, flooring and trim yourself. On a two-car bedroom that saves about $3,900.
- Use a ductless mini-split instead of extending ductwork from the house.
- For a gym or workshop, keep the slab and use rubber or epoxy flooring instead of a raised subfloor.
For a deeper look at costs by project type, see our 2026 garage conversion cost guide.
Need to keep your parking? If losing the garage is a deal-breaker, compare the conversion with building a new space. The garage addition cost calculator prices a new attached garage, and the garage cost calculator prices a detached one. If your conversion adds a bathroom or kitchen and the house is on a septic system, check its capacity first; the septic system cost calculator shows what a larger tank or drain field costs.
Frequently Asked Questions
How much does it cost to convert a 2-car garage into a bedroom?
About $19,000 to $26,000 with mid-range finishes, including framing in the door, insulation, drywall, a raised floor, carpet, electrical, a mini-split and permits. Adding a bathroom raises the total to roughly $30,000 to $36,000.
Do I need a permit to convert my garage?
Almost always. Turning a garage into living space changes how the building is used, which requires a permit and inspections for framing, electrical, insulation and any plumbing. Check with your local building department before you start.
Does a garage conversion add value?
It can, especially when it adds a legal bedroom or rentable apartment. In areas where buyers expect a garage, you may not recover the full cost. A permitted, well-finished conversion that feels like part of the house usually adds the most value.
How long does a garage conversion take?
A simple office or bedroom usually takes 5 to 9 weeks of construction once permits are approved. Adding a bathroom or kitchen adds 2 to 4 weeks, and a full ADU can take 3 to 5 months.
Can I keep the garage door?
For a gym, workshop or hobby room, often yes, with good insulation and weatherstripping. For a bedroom or living space, most codes require a framed, insulated wall, so plan on replacing the door with a wall and window.
Pricing last updated October 2026 using national-average material and labor costs. Prices vary by region, contractor and the condition of your garage; always get written quotes.
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