Accessory Dwelling Units

Looking to add value, space, and flexibility to your property? Accessory Dwelling Units (ADUs) are one of the smartest investments for homeowners in Arizona. Whether you’re adding a rental unit, guest house, or private space for extended family, our experienced team of ADU builders and designers will guide you through every step—from accessory dwelling unit plans to final construction.

As a trusted ADU contractor in Phoenix Arizona, we understand zoning laws, permitting, and the unique requirements of ADU construction in Phoenix and surrounding cities. Whether you’re planning a detached structure or a Junior Accessory Dwelling Unit (JADU) conversion within an existing home, Bello Construction brings expertise, transparency, and efficiency to every project.

Why Choose Us for Your ADU Project?

Accessory Dwelling Unit

Custom Accessory Dwelling Unit plans designed to fit your property and purpose.

Start-to-finish project management

Start-to-finish project management—including permitting, design, and construction.

Start-to-finish project management

Experienced ADU builders who understand Arizona’s building codes and lot requirements.

Maximize your ROI

Maximize your ROI with quality builds that boost property value.

Maximize your ROI

We help you explore Junior ADUs, detached units, garage conversions, and more.

Reliable timelines

Reliable timelines, competitive pricing, and flexible financing options.

In-house teams

In-house teams with deep experience in ADU construction and inspections.

FAQ

frequently asked questions

What does ADU stand for?

ADU stands for Accessory Dwelling Unit—a secondary residential unit built on the same lot as a primary residence.

What is an Accessory Dwelling Unit or ADU?

It’s a self-contained living space that includes a kitchen, bathroom, and sleeping area. ADUs can be attached, detached, or built within existing space like a garage or basement.

What is a Junior Accessory Dwelling Unit (JADU)?

A JADU is a smaller version of an ADU—typically under 500 sq. ft.—and is created within the footprint of an existing home, such as a converted bedroom with a small kitchenette.

How do I build an Accessory Dwelling Unit?

Start by contacting a licensed ADU builder like us. We’ll help with design, permits, and construction. Every city has zoning laws, so we ensure full compliance with local requirements.

What states allow ADUs?

Many states allow ADUs, including Arizona, California, Oregon, Washington, and others. Local regulations vary, so it’s important to check with your city planning office—or ask us!

Can I build an ADU on my property?

In many cases, yes! It depends on your lot size, zoning, and setback rules. Our team can evaluate your property and guide you through the process.

Testimonials

What our customers are saying

Narsay and Sami at Bello Construction were absolutely incredible to work with. They were understanding, worked timely, and the value of there work was top notch. Both of them were super personable and easy to work with. We added 650 square feet to our home (2 bedrooms, a bathroom and a laundry room) and it turned out perfect. We would highly recommend (and already have) them to anybody looking for remodel/addition work.

Randy M
Randy M

Home Remodeling.

Narsay was phenomenal from start to finish. Out of the five estimates I received, his pricing was right in the middle, but his professionalism and attention to detail set him apart. He clearly understood my vision and provided valuable insights that enhanced the final outcome. Narsay and his crew were exceptional—always on time, respectful, and focused on quality. He stayed on budget throughout the project and kept me informed every step of the way. No matter the time of day, even while on vacation, he was always available to answer any questions via call or text. His dedication and professionalism were truly impressive. I would highly recommend Narsay and his team to anyone considering a remodel. High marks all around!

Randy M
Randy M

Home Remodeling.

Servicing area

Servicing Maricopa County

We proudly serve homeowners and businesses throughout the greater Phoenix metropolitan area. From vibrant Phoenix, AZ to the surrounding communities of Mesa, Scottsdale, Glendale, Gilbert, and Chandler, our team provides top-notch construction services tailored to each client’s needs.
  • Phoenix AZ
  • Mesa AZ
  • Chandler AZ
  • Scottsdale AZ
  • Glendale AZ
  • Gilbert AZ
  • Tempe AZ

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