ADUs
Build an ADU for family or rental income potential.
CasaMás Construction builds accessory dwelling units across Utah, with service available in English and Spanish.
An ADU (accessory dwelling unit) is a secondary living unit on your property — a detached unit, an attached unit, a converted garage, or a basement apartment. ADUs can add living space for family and rental income potential, when allowed by local city rules. CasaMás Construction guides you from feasibility through design, permitting, and build.
Who it’s for
For homeowners who want space for family, a private guest or in-law suite, or to explore rental income potential on their own lot.
What’s included
Detached ADU
A standalone unit in your yard for privacy and flexibility.
Attached ADU
An addition with its own entrance attached to your home.
Garage-conversion ADU
Convert an existing garage into a self-contained unit.
Basement ADU
A separate basement unit with its own entrance and kitchen.
How your project works
- 1
Free consultation
We listen to your goals and look at your space — in English or Spanish.
- 2
Design & estimate
Clear scope and a written estimate. Monthly payment examples are estimates.
- 3
Permits & build
We handle permitting and construction with licensed, insured crews.
- 4
Enjoy your space
More room, more income potential, and more equity in your home.
What affects your cost
ADU cost depends on type (detached vs. attached vs. conversion), size, utilities, site work, and finishes. We review your lot and goals and provide a clear written estimate — no invented numbers.
Financing options may be available, subject to approval. Monthly payment examples are estimates.
Where we work
CasaMás builds ADUs across Salt Lake, Utah, Davis, Weber, and Tooele counties. ADU rules vary by city; we help confirm what’s allowed by your local city rules and handle permitting.
- Salt Lake County
- Utah County
- Davis County
- Weber County
- Tooele County
Project photos
Photos coming soon
We’re adding real Utah projects for this service. Ask us for recent examples during your free estimate.
Frequently asked questions
What is an ADU?
An accessory dwelling unit is a secondary living unit on your property — detached, attached, a garage conversion, or a basement unit. ADUs can add living space and rental income potential when allowed by local city rules.
Are ADUs allowed in my city?
ADU rules vary by city in Utah. We help confirm what’s allowed by your local city rules before design begins.
Detached vs. attached ADU — which is right for me?
It depends on your lot, budget, and goals. We review your property and walk you through the trade-offs during your free estimate.
Can an ADU generate rental income?
An ADU can add rental income potential when allowed by local city rules. We don’t guarantee rental income, city approval, or permits.
What affects ADU cost?
Type, size, utilities, site work, and finishes. We provide a free written estimate; monthly payment examples are estimates.
Related services
Get your free estimate
No pressure. We'll give you clear options for your project.