ADUs & Casitas
ADUs & Backyard Guest Casitas in San Antonio
Detached casitas and in-law suites for multi-generational living or rental income.
Common ADUs & Casitas problems
What San Antonio homeowners tell us before they call
Zoning rules you can't decode on your own
San Antonio's Unified Development Code sets strict setbacks, lot-coverage limits, and owner-occupancy rules that vary by district. We check eligibility before you spend money on design.
A guest suite that feels like a hallway bedroom
Attached additions without a private entry and real separation don't give family the independence they need. Detached casitas solve this properly.
Utility tie-ins nobody wants to quote
Water, gas, and electrical connections for a detached structure need permits, trenching, and utility coordination. We handle all of it in-house, inspected and done right.
What we do
ADUs & Guest Casitas in San Antonio, the design-build way
Last updated: June 24, 2026
Accessory dwelling units and guest casitas add flexible space for family or rental income. We handle the eligibility questions: Unified Development Code zoning, lot size, setbacks, and owner-occupancy. We also manage utility tie-ins, foundation, and finish to deliver a detached casita or attached suite that fits your lot and your goals.
What's included in your ADUs & Casitas project
- ✓ Detached backyard casitas
- ✓ Attached in-law / mother-in-law suites
- ✓ Zoning and lot-eligibility guidance
- ✓ Utility tie-ins (water, gas, electrical)
- ✓ Rental-income and multi-gen layouts
- ✓ Unified Development Code compliance
Backyard casitas and in-law suites, built right
An accessory dwelling unit (ADU) is one of the highest-value remodeling moves a San Antonio homeowner can make. It gives you flexible space for family, rental income potential, or both — and it can add real resale value when done right.
What kind of ADU fits your lot?
- Detached casita — a standalone structure in the backyard with its own kitchenette, bath, and entry
- Attached in-law suite — an addition off the main house with private entry, full bath, and bedroom
- Garage conversion — converting an existing garage into living space (see our garage-attic-conversions service)
We start by checking eligibility under the Unified Development Code — lot size, setbacks, owner-occupancy, and rental rules. Some lots support a 1,200 sq ft casita; others won’t support more than 600. We pre-qualify before we design.
The utility work matters
A detached casita needs its own service: water main and meter, sewer connection, gas line (if you have a stove or tankless heater), and electrical service. The trenching, depth requirements, and metering all need permits and inspections. We coordinate the utility companies along with the city.
Finish-level expectations
A casita is a small house. We build them with the same systems and finish quality as our primary remodels — proper insulation, mini-split or split-system HVAC, full waterproofing in the bath, durable flooring. Skimping on systems in a small structure shows up immediately.
Why homeowners pick us
Same process. Same crew. Same fixed price.
We pre-qualify your lot before we sell you a project
Not every lot in San Antonio supports an ADU — setbacks, lot size, and owner-occupancy rules vary by district. We check the Unified Development Code constraints before you commit to the design.
Utility tie-ins done right
Detached casitas need their own water, gas, and electrical service — properly trenched, metered, and inspected. We handle the utility coordination.
Finishes that match the main house
A casita that looks like an afterthought hurts resale. We design the casita to read as part of the property — same brick, same trim package, same roofing where it makes sense.
Portfolio
ADUs & Guest Casitas portfolio
Recently completed projects across Greater San Antonio.
Ready to talk through your ADUs & Casitas project?
Free in-home estimate. No commitment. Fixed price locked before any work starts.
What homeowners say
4.9 stars across 200+ Houzz reviews
50% of our projects come from direct referrals. Here's why.
"From the first design-center visit to the final walkthrough, we had one point of contact and one price that never moved. Our kitchen is unrecognizable in the best way."
"They removed a load-bearing wall and turned three cramped rooms into an open living space. The crew was the same faces every day for weeks — that mattered."
"Our walk-in shower is gorgeous and finally accessible for my mom. They handled the layout, plumbing, and waterproofing without us chasing anyone."
"We added an in-law suite and you genuinely cannot tell it wasn't part of the original house — the brick and roofline match perfectly."
"Transparent budgeting was the whole reason we picked them, and they delivered. No surprise change orders, no hidden fees."
FAQ
Common ADUs & Guest Casitas Questions
Common questions about our design-build remodeling process.
Can I build an ADU on my San Antonio lot?
How much does a casita cost to build?
Can I rent out my ADU?
Do you handle the permits?
How long does a casita take to build?
Related services
Other ways we remodel San Antonio homes
Helpful guides
ADUs & Casitas guides & resources
Plan your project with our in-depth guides on cost, process, and choices.
What Is an ADU, and Is It Allowed on My San Antonio Lot?
What an ADU is and whether it's allowed on your San Antonio lot — Unified Development Code zoning, lot size, setbacks, and owner-occupancy rules.
Read the guide →Attached In-Law Suite vs Detached Casita
Attached suite or detached casita? Compare privacy, cost, zoning, and multi-gen vs rental use to choose the right secondary dwelling for your home.
Read the guide →Backyard Casita Cost Guide for San Antonio
What a backyard casita costs in San Antonio — utility tie-ins, foundation, finish level, rental-income ROI framing, and financing options.
Read the guide → Ready to start your ADUs & Casitas project?
Free in-home estimate. Fixed pricing locked in our design center.