Innovative Garage Conversion & Casitas in Phoenix, Arizona

Future-Proof Your Home with Our Trusted Local Expertise


In the heart of the Sonoran Desert, where urban growth meets suburban charm, homeowners are looking for innovative ways to increase living space without sacrificing comfort or design. At CASA NOVA Development, Remodeling & Design, we specialize in garage conversions and custom casitas that enhance your property’s function, value, and aesthetic. With over 15 years of hands-on experience serving Phoenix, Arizona, and surrounding areas like Scottsdale, Mesa, Chandler, Gilbert, Tempe, and Glendale, we bring unmatched regional insight and construction expertise to every project.

Whether you’re looking to accommodate multigenerational living, generate rental income, or create a private home office or gym, converting your garage or building a casita offers a cost-effective and flexible solution. In many parts of the region, accessory dwelling units (ADUs) such as casitas are not only allowed—they’re increasingly in demand due to rising housing costs and evolving lifestyle needs. We understand the city zoning regulations, design preferences, and climatic considerations unique to Phoenix, Arizona and surrounding communities, ensuring every project meets local code while complementing your existing home design.


Our approach integrates thoughtful space planning, energy-efficient construction, and modern design principles tailored to the desert lifestyle. From initial feasibility assessments to design, permitting, and construction, our streamlined process ensures timely completion without compromising on craftsmanship. When you partner with us, you're choosing a remodeling contractor who blends local knowledge, architectural creativity, and functional planning to bring your vision to life.

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Our Garage Conversion & Casita Services

Full Garage-to-Living Space Conversions

We transform underutilized garages into fully functional living areas with insulation, drywall, HVAC, plumbing, and custom design—ideal for bedrooms, living rooms, or in-law suites. Each conversion suits your home's layout, lifestyle, and long-term goals. We integrate natural lighting, upgraded flooring, and electrical systems to create a seamless extension of your home.

Custom Casita Design & Construction

Our team builds detached guest homes or casitas from the ground up. These structures include everything from kitchens and bathrooms to custom storage and patio features. We provide personalized layouts and premium finishes to ensure the space is functional, private, and aesthetically aligned with your main residence.

Permitting & Zoning Compliance Services

We handle all the complexities of local zoning, permitting, and HOA compliance for your garage conversion or casita. Our team consults with municipal offices and reviews lot lines, setback requirements, and utility access to ensure all paperwork and construction meet legal standards. We keep your project legally sound and stress-free.

Energy-Efficient Upgrades

Every conversion or casita project includes recommendations for energy-saving features such as solar panels, low-E windows, and efficient HVAC systems, which are crucial for managing energy costs. We also offer radiant barrier insulation and high-efficiency LED lighting. Our goal is year-round comfort with lower utility bills.

Attached Casita Additions

Where detached units aren’t possible due to lot size restrictions, we design attached casitas that seamlessly blend with your existing structure while providing distinct living quarters. These additions include private entrances, bathrooms, and even kitchenettes. We ensure the addition feels like a natural part of your home, not an afterthought.

Structural Reinforcement & Waterproofing

Before converting your garage, we reinforce foundations, upgrade insulation, and add waterproofing to handle monsoon-season rains and intense summer temperatures. We evaluate the structural integrity of your existing slab and walls, correcting any cracks, leaks, or settling issues. These precautions ensure your new living space is durable, safe, and built to last.

Benefits of Garage Conversion & Casitas

Increased Property Value

Adding a livable space such as a casita or converted garage significantly boosts home resale value. Buyers in these areas highly value functional square footage upgrades without the cost or hassle of full home additions. This improvement also enhances curb appeal and makes your property stand out in the competitive real estate market.

Rental Income Potential

Phoenix, Arizona’s growing population creates strong demand for rental spaces, making casitas and converted garages excellent income-generating assets. These spaces appeal especially to students and young professionals. A fully equipped, private rental can generate steady revenue and offset mortgage payments.

Multigenerational Living

With families increasingly choosing to live together, a separate suite for in-laws or grown children provides privacy and convenience. This arrangement is especially popular in suburban communities, where spacious homes accommodate extended families. It fosters closer family bonds while respecting everyone’s independence.

Home Office or Studio Space

Converting your garage into a dedicated workspace allows professionals to work from home comfortably. This separation helps maintain work-life balance and reduces household distractions. Customizing the space to your profession—whether a quiet office or creative studio—maximizes productivity.

Guest Accommodation

Casitas serve as ideal guest quarters, offering visitors private comfort and amenities. This benefit is valuable when hosting family and friends frequently. A casita allows guests to stay longer with independence, enhancing their overall experience and your hosting reputation.

Customization Flexibility

Whether you envision a yoga studio, man cave, art room, or fitness center, garage conversions offer full personalization to suit your lifestyle and design aesthetic. This flexibility lets homeowners create unique spaces that reflect personal interests. The possibilities for creative expression are endless, from built-in storage to specialized lighting.

Maximizing Space and Elevating Value in Homes

In a region where space, flexibility, and property value are key considerations, garage conversions and casitas represent a smart investment for homeowners. As the area grows in population and housing demand, adding a self-contained living space or reimagining your existing garage can significantly enhance your home’s functionality and appeal. At CASA NOVA Development, Remodeling & Design, our team brings a balance of creative design, meticulous craftsmanship, and deep familiarity with construction standards across Phoenix, Arizona, and neighboring communities like Tempe, Mesa, and Glendale. We tailor each project to your goals, lifestyle, and property limitations while ensuring it complies with zoning laws and complements your home’s style. Our client-centric process ensures smooth execution with a strong emphasis on quality, energy efficiency, and lasting value.

Frequently Asked Questions

  • Do I need a permit to convert my garage in Phoenix?

    Yes, permits are required for garage conversions in Phoenix and surrounding areas. We assist in obtaining all necessary permits and ensure compliance with city and county regulations. Our team works closely with local municipalities to streamline the process, reducing delays and ensuring your project moves forward efficiently.

  • Can I legally rent out a converted garage or casita?

    In many Phoenix areas, yes. Zoning and local ordinances determine eligibility. We evaluate your property to ensure rental potential meets legal requirements. Some neighborhoods in Scottsdale and Tempe have specific ADU regulations, and we make sure your unit is built to code and rental-ready.

  • How long does a garage conversion project typically take?

    Most projects are completed within 6–10 weeks, depending on design complexity, permit processing, and weather conditions during construction. We provide a detailed project timeline during the planning phase and keep you informed throughout the entire process to ensure timely completion.

  • What is the average cost of building a casita in Phoenix?

    The cost varies based on size and features, but generally ranges from $80,000 to $150,000. We provide transparent quotes after an on-site consultation. Costs may include foundation work, utilities, interior finishes, and energy-efficient upgrades tailored for Arizona’s climate.

  • Will converting my garage impact my property taxes?

    Yes, any increase in livable square footage may affect your property taxes. We explain these implications during the planning phase. Most Phoenix homeowners find that the long-term value increase outweighs the minor adjustment in taxes, especially when rental income is considered.

  • What if I still need storage after converting my garage?

    We offer creative solutions such as detached sheds or overhead storage installations to help you maintain necessary storage. Our designs prioritize smart space use, and we can even incorporate built-in cabinetry or multipurpose furniture for maximum functionality.

  • Can you match my existing home’s architectural style?

    Absolutely. Whether your home is mid-century in North Phoenix or Southwestern in Chandler, we ensure seamless aesthetic integration. Our designers study your home’s exterior elements—stucco, roofing, trim—and replicate those finishes for a cohesive, professionally designed look.

  • Is insulation necessary for garage conversions in Arizona?

    Yes, proper insulation is critical for comfort and energy efficiency in Phoenix’s extreme heat. We install thermal barriers and energy-efficient materials in all conversions. This not only reduces utility costs but also keeps the space livable year-round despite the desert climate.

client testimonials

I hired Spice Girl LLC after I had major flooding throughout my home. They have been nothing but professional and knowledgeable about the work that will need to be done, as a result of all the water damage throughout my home. I will gladly refer them time and time again! Lastly, their eye for design is beyond valuable! They listened to my vision for my new kitchen and bathroom and we are designing now. Will follow with another review and pix upon completion.

Nadia K.

Erika and her team remodeled our house in north Scottsdale. She was always on time, offered design input when needed, and managed the project even while I was remote. Her team worked hard, finished in the proper timeline and were within the budget we discussed. What more could you ask for?!! Definitely would recommend and use again!

Christopher S.

After months of looking for a contractor that I felt I could trust and understood my taste to remodel my master bathroom I found Spicegirls. Loved the concept that they are a women run business. I do not live in the US at this time and in so all of our decisions, pictures ect. were done virtually. I was updated regularly. My bathroom has turned out beautifully. Highly recommend.

M K.

Erica and her team were great to work with! They were able to work around my busy schedule and my bathroom remodel turned out better than I could have imagined. I’m already working with them on my next project because I’m so happy with their work!

Lindsey R.

This is our second experience with this company. We’ve been happy with the repairs to our roof they always do such a great job cleaning up! I would refer them for sure, and use them again in the future

Lisa G.

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The Spicegirl team was very professional and quick at the repairs we needed in our garage and bathroom after water damage. The team was respectful of our home as well. I would hire Spicegirl again for my next remodeling or repair needs for my home .

Roseann F.

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I hired Spice Girl LLC after I had major flooding throughout my home. They have been nothing but professional and knowledgeable about the work that will need to be done, as a result of all the water damage throughout my home. I will gladly refer them time and time again! Lastly, their eye for design is beyond valuable! They listened to my vision for my new kitchen and bathroom and we are designing now. Will follow with another review and pix upon completion.

Nadia K.