Custom ADU Builder (Casitas & Accessory Dwelling Units) in Arizona

Expand your living space and boost your property value. We design, permit, and build high-quality backyard guest houses tailored to your lifestyle—built right, the first time.

Seamless Concept-To-Completion
Livable Construction Zones
Fixed-Price Proposals
WHY BUILD AN ADU?

Maximize Your Property with a Custom Backyard Casita

Whether you need more space for family or want to generate passive income, a custom accessory dwelling unit (ADU) is one of the smartest investments you can make in the Phoenix Valley. We specialize in building detached structures that look and feel like a natural extension of your property.

Wooden structural framing for a residential home on a concrete slab foundation at a new construction site.
Multi-Generational Living:

Create a comfortable, private in-law suite for aging parents or adult children.

Rental Income:

Generate steady cash flow by utilizing your casita as a long-term rental or Airbnb.

Rental Income:

Generate steady cash flow by utilizing your casita as a long-term rental or Airbnb.

Flexible Space:

Build the perfect home office, creative studio, or private guest house.

What We Deliver as your ADU Builder

Our Concept-to-Completion Casita Building Process

Building a ground-up structure in your backyard requires rigorous planning and city approvals. We handle the heavy lifting so you don’t have to.

Modern wood-paneled backyard ADU with gravel courtyard, outdoor seating area, and lush bamboo landscaping.
Professional house outline logo with an orange checkmark for Smart Choice Remodeling services.
Site Assessment & Feasibility:
We analyze your lot, check zoning requirements, and determine the optimal placement for your new build.
Paved backyard patio featuring black wicker armchairs, a wooden fence, and a rustic timber garden shed.
Professional house outline logo with an orange checkmark for Smart Choice Remodeling services.
Design & Permitting:
Powered by our specialized design partners at Maricopa Casitas, we finalize architectural plans and navigate the complex municipal permitting process for you.
A professional technician showing a homeowner a new pull-down kitchen faucet in a modern grey kitchen.
Professional house outline logo with an orange checkmark for Smart Choice Remodeling services.
Final Walkthrough:
We deliver a turnkey, move-in-ready casita that meets our strict quality standards and passes all city inspections.
Why Choose Us, the #1 ADU Builder in Maricopa

A Better Way to Build Your Backyard Addition

Smart Choice Remodeling is a female-owned, minority-led construction company. We bring executive-level oversight to your backyard build.

Modern kitchen featuring navy blue cabinets, gold hardware, and a white quartz waterfall island with bar stools.
Homeowners seeking multi-generational living solutions
Property owners pursuing rental income expansion
Investors optimizing residential portfolios
Families planning long-term housing flexibility
Our Casita Commitment
Smart Choice Remodeling and Maricopa Casitas operate with a shared philosophy: Build intelligently. Execute with discipline. Deliver with integrity. By aligning development vision with construction authority, this partnership ensures each casita project is not just an addition — but a strategic enhancement to your property and your investment.
Modern kitchen interior with white gloss cabinets, black granite breakfast bar, and stylish white bar stools.

Let’s Get Your Project On The Calendar

You are one step away from expanding your property’s potential. Submit your details below, and our team will reach out to schedule your consultation—focusing on your casita vision, your budget, and a realistic, fully managed plan to get the build done right.
CASITA FAQS

Common Questions About Building an ADU in Arizona

Have questions about timelines, pricing, or whether a backyard casita is the right fit for your property? Explore our FAQs below or reach out directly—we are happy to talk through your specific situation and help you choose the smartest next step for your investment.
Do I need permits to build a backyard casita?

Yes. Any livable structure with plumbing and electrical requires municipal permits. We handle the entire permitting process, ensuring your new ADU is 100% compliant with local zoning laws and setbacks.

Timelines vary based on the size and complexity of the build, as well as city permit approval times. Once permits are in hand and we break ground, a standard casita build typically takes 3 to 5 months from foundation to final paint.

Absolutely. During the site evaluation, we determine the best way to tie into your home’s existing water, sewer, and electrical systems, or we can establish separate metering depending on your goals for the property.