
Hoosier Design Build
Hoosier Design Build specializes in custom ADUs and garage conversions in Indianapolis. They offer complete design and planning, new ADU construction, and full interior and exterior finishing.
Looking for the best garage conversion contractors in Indianapolis, Indiana? Our directory features 2 vetted garage conversion contractors serving the Indianapolis area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.

Hoosier Design Build specializes in custom ADUs and garage conversions in Indianapolis. They offer complete design and planning, new ADU construction, and full interior and exterior finishing.

Timeless Tiny Homes specializes in creating Accessory Dwelling Units (ADUs) and other structures that transform your property into a more versatile and valuable space. They offer structures that range in size from 220 – 1,200 square feet.
Indianapolis is one of the top markets for accessory dwelling units in Indiana. With growing demand for affordable housing, ADU construction in Indianapolis offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of garage conversion contractors in Indianapolis helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in Indianapolis typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed garage conversion contractors to compare prices.
Yes, ADU construction in Indianapolis requires building permits. Indiana has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in Indianapolis typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.