Actual costs may vary based on specific site conditions, local labor costs, material selections, and other factors. The numbers paint only part of the picture. Our research reveals that a basic garage conversion can cost between $60,000 and $150,000.
Detached units average $180,833 for just 676 square feet. The cost to convert a garage into an ADU depends on factors like its size, the contractors you hire, your location, and the finishes you choose. Expect to spend between $150 and $400 per square foot to convert a garage into an ADU.
One-car garage conversions cost $36,000 to $96,000, while three-car garage conversions cost $75,000 to $225,000. The new construction costs are based on a one-bedroom, one bathroom, 499 square foot ADU. ADU construction labor and materials are based on an average of $250-$350 per square foot.
For a 2-car garage conversion, ADU construction labor and materials will average around $175 - $225 per square foot. An average 2 car garage ranges from 300 square feet to 475 square feet. The above cost ranges.
Lynette Padwa is a Los Angeles homeowner who converted her garage 15 years ago to an accessory dwelling unit. She's now on a mission to help build more accessory dwelling units in California. She often writes about topics like garage conversion ideas, garage conversion costs, and ADU legislation.
She especially loves helping LA homeowners. See 2025 ADU costs by type, use our live calculator, and review real case studies. Compare detached, attached, garage conversion, and prefab costs.
Garage Conversion ADU Garage conversion projects typically cost between $50,000 to $100,000, making them attractive for homeowners seeking quick returns on investment. Converting your garage into an Accessory Dwelling Unit (ADU) is an excellent way to expand your living space. It unlocks the potential of earning rental income! Pricing varies based on where you live, types of materials, and labor costs.
Realistically, on average, you should plan to pay between $30,000 and $80,000. Design complexity, permits and existing utilities factor into the final price. ADU Garage Conversion Guide by Cameron Meredith Jul 12, 2025 Blog 0 comments With 66% of California homeowners now considering or planning for an ADU, lending strong momentum to the trend, converting your garage into living space has become a smart, cost.
Discover how garage to ADU conversion boosts value, income, and space. Get step-by-step planning, costs, and design tips! Discover the average cost to convert garage to adu, explore benefits, cost-saving strategies, and increase your property value today!