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
EXCELLENT
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Based on 29 reviews
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Kevin Foote
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Installers did a great job and showers made a big improvement in our bathrooms Will recommend to our friends and neighbors
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phillip reyes
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Smart Choice did a great job they were very professional and on time. They cleaned up after the job and were very friendly . Rob was a great salesman and Jose had a great crew I highly recommend them if you have any remodeling on you house that needs to be done .
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Sayed
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Carlos was great! Thank you
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Hulk Smash
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Wonderful service showed up when they said completed tricky job . I’m satisfied. I will use again soon
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Jodelle Plotner profile picture
Jodelle Plotner
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We can't begin to express enough how professional, caring, efficient and very detailed they are in what they do! They did such a beautiful and outstanding job turning our tub into a walk in shower. It couldn't be more perfect!! Their performance and hard work goes beyond the call of duty. They give extra thought and detail in what they are doing to make it extra nice for the customer. The office people are just as professional, caring, efficient and outstanding. They are there for you in everyway with full communication. Easy to get a hold of. They keep you fully informed on everything every step of they way with your installation. Everyone is so sincere making you feel you and your installation is very important to them as it is to you!! Thanks so much to Tammy, Carlos and Jesus and all the "Smart Choice Remodeling" team. You've been amazing!! We couldn't be anymore happy with our beautiful new walk in shower and we couldn't have been anymore lucky to have had you guys🤗🤗
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Kerry Patel profile picture
Kerry Patel
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Great communication! On time. Great work. Great attitude. Would hire again!
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SamanthaRae
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Jose and Carlos are truly the best so awesome and attentive to detail truly made my vision come to life! Could not thank them enough for helping me install our new vanity!!
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Ron West profile picture
Ron West
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I’m extremely impressed with the professionalism Steve, Carlos, Jose and the team exemplified over the course of my home repairs. From the initial consultation to the final walk-through, these gentleman had my objectives in mind with attention to every detail and constant communication. While having work done on a home you’re living in can be challenging, Smart Choice made the process as simple as possible. I highly recommend them and will be enlisting their service on future projects.
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Linda Marks profile picture
Linda Marks
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Carlos provided us with a 5 star service! I felt comfortable with him in our home and he is the best to work with!
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Heather Wilson profile picture
Heather Wilson
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Steve is extremely responsive, knowledgable and happy to help. I would 100% recommend working with him.
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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 chairs, a wooden garden shed, and decorative fencing.
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.
Our Partnership

Confidence · Trust · Results with Maricopa Casitas

Smart Choice Remodeling delivers full-service casita and ADU builds through our partnership with Maricopa Casitas. From initial site assessment through final inspection, every project is backed by our Best Price & Value Guarantee — on-time, dependable solutions you can count on.

Executive-Level Oversight

Hands-on project management from start to finish with clear communication at every stage.

Disciplined Budgeting

Fixed-price proposals and transparent cost control — no surprises, no hidden fees.

Licensed & Experienced Teams

Fully licensed Arizona construction crews with specialized ADU and residential building expertise.

Why Choose Us, the #1 ADU Builder in Maricopa

A Better Way to Build Your Backyard Addition

Smart Choice Remodeling is a Locally Owned & Operated 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
Flexible Financing

Affordable Monthly Payments for Your Project

Through our partnership with Enhancify, Smart Choice Remodeling customers can apply for project financing in just 60 seconds. See instant pre-approval options and access loans up to $200,000 depending on qualifications — with funding available in as little as 1–5 business days.

60-Second Application

Quick and simple online application with instant pre-approval options.

Up to $200K

Financing available up to $200,000 based on your qualifications.

Fast Funding

Funding available in as little as 1–5 business days after approval.

Financing provided by third-party lenders through Enhancify. All loans subject to credit approval. Smart Choice Remodeling is not a lender.

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.
Related Services

Explore Our Services

Smart Choice Remodeling offers a full range of residential and commercial services across the Phoenix Valley, including Scottsdale, Gilbert, Chandler, Mesa, Tempe, and Maricopa. Explore our other services below.

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.