Custom home builder

Accessory building construction in Peoria, AZ

Modern Design Construction builds custom accessory buildings for homeowners across Peoria and the greater Phoenix area.

A newly completed detached accessory building with a clean exterior finish on a residential lot in Peoria, Arizona. The structure sits behind the main home with clear setbacks and a desert-landscaped yard visible in the foreground.

Expert Accessory building construction in Peoria, AZ

Accessory building construction adds usable space to your property without touching your main home. Modern Design Construction handles this work for homeowners in Peoria, Glendale, Scottsdale, Phoenix, Tempe, Buckeye, Avondale, Laveen, Litchfield Park, Waddell, Anthem, Sun City, Sun City West, Sun City Grande, and Paradise Valley. Whether you need a detached workshop, a guest casita, an oversized garage, or a backyard studio, we plan and build the structure to fit your lot and your goals. In Peoria, accessory buildings that reach nine feet in height or 300 square feet or more must conform to the City of Peoria Design Review Manual, so getting the design right from the start matters. We approach every project the same way the owner does: focused on real progress from the first day of work to the final walkthrough. If you are ready to add a permanent, purpose-built structure to your property, contact Modern Design Construction to get started.

What's included

Adds dedicated space for work, hobbies, or guests without altering your main home's footprint
A well-built detached structure can increase your property's resale appeal across competitive markets like Scottsdale and Paradise Valley
Purpose-built construction means the structure is designed for your specific use, not adapted from a prefab kit
Proper setback and design compliance from the start reduces the risk of costly corrections later
Durable construction suited to the Arizona heat, sun exposure, and high-wind conditions common across the West Valley and beyond
Gives multi-generational households a private, self-contained space on the same property

Finish Carpentry Specialist

Custom Cabinetry Design

Design-Build Services

Rough Construction

ADU and Casita Construction

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FAQ

Accessory building construction FAQ

Common questions about accessory building construction in Peoria, AZ.

Can I build a detached workshop or guest casita on my property in Peoria?

Yes, Peoria allows detached accessory buildings on residential lots, subject to setback and design standards. Modern Design Construction can build the structure to meet those local requirements.

What types of accessory buildings does Modern Design Construction build in the Phoenix area?

We build detached garages, workshops, guest casitas, backyard studios, and oversized storage structures across Phoenix, Glendale, Tempe, Avondale, and surrounding cities. Each build is designed around your lot size, intended use, and local code requirements.

Does an accessory building in Peoria need to match my main home's exterior design?

Accessory buildings in Peoria that meet certain size or height thresholds must conform to the City of Peoria Design Review Manual. We factor that into the design before construction begins.

Do you build accessory structures in areas outside Peoria, like Buckeye or Litchfield Park?

Yes, Modern Design Construction serves homeowners in Buckeye, Litchfield Park, Waddell, Laveen, Anthem, Sun City, Sun City West, Sun City Grande, and several other communities. Each city has its own development standards, and we build to those local rules.

What is the difference between an accessory building and an accessory dwelling unit in Scottsdale or Phoenix?

An accessory building is a non-habitable structure like a garage, workshop, or shed, while an accessory dwelling unit includes sleeping and sanitation facilities for independent living. Both are separate categories under local codes in cities like Scottsdale and Phoenix.

How do I get started with an accessory building project in the West Valley?

Contact Modern Design Construction directly to discuss your property, intended use, and goals. We serve homeowners across Avondale, Waddell, Litchfield Park, Buckeye, and the broader West Valley.

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Client Reviews

What Maricopa County customers say.

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After living in this house for over 20 yrs our kitchen needed to be brighter and more modern looking. Derek and his crew did an excellent job installing new counters, backsplash, and all the other upgrades we had envisioned. Great communication, prompt service and cleanup. We wouldn’t hesitate to contract with Modern Design Construction again for future remodeling!

Derek did a complete gut and reconstruction of our kitchen and breakfast nook and we couldn’t be happier with the final results. He helped take our nice track home kitchen and make it custom home worthy! Derek expanded our island giving us more room for appliances and entertaining, added brand new cabinets that were extended up to the ceiling. We also added a whole new row of cabinets in our breakfast nook. To tie the whole project together, he updated our fireplace and added a matching mantle. The results speak for itself and he did an amazing job!

I finally have my dream kitchen. I initially wanted just my peeling cabinets replaced. Derek from Modern Design Construction LLC sent a picture of an updated much roomier kitchen. From start to finish, the hardest thing I had to do was pick out colors, flooring, knobs, a faucet and stay out of the way. The plumber, electrician, painter and flooring people all did exceptionally work. I highly recommended Modern Design Construction LLC. I am very pleased with my new kitchen.

We highly recommend Derek for your next remodel project. Our project included a major Kitchen redesign, as well as tile and cabinetry in two Bathrooms. From our very first meeting with Derek, he brought creative design ideas to help us reimagine our our spaces to achieve the bright and open concept we were looking for. This was a large project requiring multiple trades which Derek sourced and managed. It all went very smoothly and through each step, Derek worked closely with us to ensure every small detail met our expectations. His suggestions for tweaks here and there resulted in not only beautiful ascetics but, the best possible function as well. Thank you for everything Derek; you are a fabulous craftsman and a great guy! — Lisa Rae & Tom

Derek is very professional and quickly responded to my issues with the plumbing install. I would definitely recommend his company.

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Proudly Based in Peoria, AZ

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Phone

(623) 418-2769

Hours

Monday 7:00 AM - 4:00 PM
Tuesday 7:00 AM - 4:00 PM
Wednesday 7:00 AM - 4:00 PM
Thursday 7:00 AM - 4:00 PM
Friday 7:00 AM - 4:00 PM
Saturday Closed
Sunday Closed