Estimate what it costs to turn your garage into a living space or full ADU — the scope of work matters more than the square footage.
A full ADU adds plumbing, a kitchen, and a bathroom — the biggest cost driver in any conversion.
Free · No obligation · Licensed contractors in your area
Estimates reflect 2026 national conversion cost data adjusted by state labor indexes. Garage conversions vary widely with slab condition, ceiling height, and utility distances — treat this as a planning range and confirm with local licensed contractors. Converting to a full ADU also requires permits; see our city guides for rules and fees where you live.