ADU Construction in Tucson
Get matched with licensed builders who construct custom accessory dwelling units from the ground up. Whether you're considering a detached backyard unit, an attached addition, or a conversion of existing space, we'll connect you with a builder who handles every phase of ADU construction in Tucson and Pima County.
Full-Service ADU Construction
An accessory dwelling unit, or ADU, is a self-contained living space built on the same lot as your primary home. In Tucson, these are commonly called casitas, guest houses, or backyard cottages. Whatever you call them, they serve one purpose: adding functional, independent living space to your property.
The builders in our Tucson network focus specifically on residential ADU work. That matters because ADUs come with their own set of challenges — tight lot conditions, utility tie-ins to an existing primary home, Pima County's casita-specific zoning rules, and HOA reviews. A builder who treats ADUs as a side project will move slower and make more mistakes than one who builds these every year.
Tucson's growing housing market and the city's "Casitas in Tucson" program make ADU construction an increasingly popular and financially smart investment. Whether you're building for rental income, multi-generational family living, a home office, or long-term property value, an ADU is one of the highest-ROI improvements you can make to a Tucson home.
Types of ADUs Our Network Builds
Detached ADU
A standalone structure in your backyard. Maximum privacy and flexibility. Typically 400 to 1,000 sq ft with full kitchen, bathroom, and living space.
Attached ADU
An addition to your existing home with a separate entrance. Shares one or more walls with the main house, reducing construction costs while adding independent space.
Garage Conversion
Transform an existing garage into a livable ADU. Often the most cost-effective option since the shell structure already exists. Learn more
Above-Garage ADU
A living unit built above a new or existing garage. Maximizes your lot space by building vertically. Popular in areas with smaller lots.
ADU Construction Costs in Tucson
ADU construction costs in Tucson typically range from $150 to $350 per square foot depending on finishes, site conditions, and complexity. Here's a general breakdown:
These ranges include design, permitting, and construction. Actual costs depend on site conditions, material selections, and scope. The builder we match you with provides a detailed line-item estimate at no cost.
Why Build an ADU in Tucson?
Tucson is one of the most ADU-friendly cities in Arizona. The city's "Casitas in Tucson" program streamlined regulations to make it easier and faster to build accessory dwelling units. Key benefits include:
- Rental income: Tucson ADUs rent for $1,200 to $2,500/month depending on size and location
- Property value: ADUs typically add 20-30% to your home's value
- No owner-occupancy requirement: Tucson does not require the homeowner to live on-site
- Flexible zoning: ADUs are allowed in most residential zones in Tucson
- Housing demand: Tucson's population growth is outpacing housing supply, keeping rental demand high
Get a Free ADU Estimate
Share your project and we'll match you with a licensed Tucson builder who'll come assess your property at no cost.
Get Matched with a Builderor call (520) 441-3774