The process at a glance
8 steps from first look to keys
Kingdom Builder Group's purchasing and installation process has 8 steps: a Virtual Site Visit, project deposit and financing, permitting and HOA coordination, site preparation and foundation installation, utilities installation, unit delivery, custom exterior finishes, deck and solar options, and final inspection through your certificate of occupancy. Project funds are held in escrow with Pioneer Title Agency. The standard schedule for a single BOXABL Casita is a $5,000 deposit, then 15% at permit submission, 30% at permit approval, 50% when your BOXABL is ready to ship and the final 5% at certificate of occupancy.
- 1Virtual Site Visit
- 2Project Deposit & Financing
- 3Permitting & HOA Coordination
- 4Site Preparation & Foundation Installation
- 5Utilities Installation
- 6Unit Delivery – Efficient, Compliant, & Resilient
- 7Custom Exterior Finishes, Deck Options, & Solar Packages
- 8Final Inspection
Turnkey pricing
Turnkey BOXABL Casita projects from $150,000
The Casita unit is included. One project with KBG covers the steps below, from your Virtual Site Visit to your certificate of occupancy.
Turnkey starting price
$150,000Starting price. Final price depends on site and scope; pricing is confirmed after scope review.Start your project →Or book a $99 Virtual Site VisitWhat’s included
- The two-door BOXABL Casita unit
- Virtual Site Visit and example site plan
- Permits and HOA coordination
- Site prep and foundation
- Utility connections
- Delivery and set on your foundation
- Final inspection through your certificate of occupancy
Optional extras: custom exterior finishes, porch and deck options, and solar packages.
Virtual Site Visit
Watch how a Virtual Site Visit works
See what happens on the call, then book yours.
Virtual Site Visit
Embark on a seamless journey to your new ADU or Home with our Virtual Site Visits, powered by our state-of-the-art digital platform. This innovative tool allows us to bring the site visit experience directly to you, wherever you are. With our advanced technology, we can virtually place any of our ADUs on your property, giving you a realistic view of how it will look and fit in your space. This process not only saves time but also ensures precision in planning and preparation. You’ll see potential utility connections, assess the layout, and visualize the final setup, all from the comfort of your home. Our Virtual Site Visits are the first step in transforming your property, ensuring every detail is considered for a smooth and efficient installation.
Virtual Site Visit overview
Example of Site Plan Included With Virtual Site Visit
Book your Virtual Site Visit: $99, credited to your project
- 60-minute video call. No need to be at the property.
- With Patrick, Robert or Kyle, depending on availability.
- We place the unit on your lot in canibuild site-planning software.
- $99, non-refundable, and credited toward your final invoice when you build with KBG.
- Bring your property address and parcel number (APN).
Project Deposit & Financing
To begin your journey with a new home or ADU, a deposit is required to secure your selection and initiate the project. This deposit is the first step in bringing your dream space to life. To ensure a smooth process, we also require proof of funds or a pre-approval letter for financing. Understanding that financial flexibility is key, we offer connections to our preferred financing partners, who can assist you with tailored financing solutions. Our team is dedicated to making the purchasing and installation process as seamless and accessible as possible, ensuring you can move forward with confidence and ease.
Your money, protected
Deposit, escrow & payment milestones
Your money is protected and tied to real progress. After the contract is signed, a $5,000 project deposit starts the project. All project funds go into escrow with our partners at Pioneer Title Agency. The balance after the deposit is paid in 4 milestone payments:
| Contract signed | $5,000 project deposit (into escrow) |
| Permit submission | 15% of the balance |
| Permit approval | 30% of the balance |
| BOXABL ready for shipping & delivery | 50% of the balance |
| Certificate of occupancy | Final 5% of the balance |
Permitting & HOA Coordination
Navigating the permitting process can be complex, but you don't have to do it alone. At Kingdom Builder Group, we provide comprehensive assistance in obtaining the necessary permits for your ADU or Home installation. Our team is well-versed in local regulations and will ensure all legal requirements are met before the installation begins. Additionally, if you're part of a Homeowners Association (HOA), we'll help you understand and comply with any specific HOA requirements and approvals. Our goal is to make your journey to owning a BOXABL home as smooth and hassle-free as possible, handling the intricacies of permitting and HOA coordination on your behalf.
Payment: 15% at permit submission · 30% at permit approvalSite Preparation & Foundation Installation
At Kingdom Builder Group, we understand that a successful installation of your ADU begins with meticulous site preparation and the laying of a solid foundation. Our integrated approach ensures both steps are handled seamlessly and efficiently.
Site Preparation: Our team takes charge of preparing your site, clearing any debris, and precisely grading the land. We condition the ground to ensure it is optimally prepared to support your ADU unit, focusing on leveling and meeting all necessary specifications for a smooth installation.
Foundation Installation: Following the site preparation, we proceed to install a robust foundation tailored to your specific home. Whether it’s a concrete slab or a custom foundation, our experienced team ensures that it meets the highest standards of quality and safety, providing a strong, durable base for your new home.
Kingdom Builder Group is committed to ensuring that every aspect of this process is managed with precision and care, setting the stage for a successful installation and a long-lasting, comfortable living experience.
Utilities Installation
Ensuring your ADU is fully functional and comfortable, we provide comprehensive utilities installation services. Our team expertly handles the connection of essential utilities, including water, electricity, sewer or septic systems, and internet, to your new home. We manage every aspect of the utilities setup, from coordinating with local service providers to the accurate installation process, ensuring that your unit is well-equipped with all the modern conveniences. Whether connecting to municipal sewer lines or installing a private septic system, we ensure efficient and compliant waste management solutions. Our focus is on seamless integration and reliability, so you can enjoy a fully connected, comfortable living experience from the moment you step into your new home.
Unit Delivery – Efficient, Compliant, & Resilient
Feel the thrill as your new, energy-efficient home arrives with our streamlined delivery process. Once the foundation is securely established and all utilities are expertly installed, we transport your unit directly to your site. Our skilled team ensures a smooth and effective delivery, managing every detail from transportation to precise on-site placement. We coordinate diligently to guarantee that your new ADU or Home is fully compliant with residential building codes and boasts high wind and snow load ratings, arrives safely and is positioned accurately, setting the stage for the final installation steps. This crucial phase in our process marks a significant milestone, bringing you closer to stepping into your home.
Payment: 50% when your BOXABL is ready for shipping & deliveryCustom Exterior Finishes, Deck Options, & Solar Packages
Transform your ADU or home into a reflection of your personal style with our diverse range of custom exterior finishes. At Kingdom Builder Group, we provide the flexibility to tailor the exterior of your unit to your unique tastes and preferences. Our standard vanilla shell is already fully livable and designed to withstand various weather and climate conditions without needing extra work. However, for those desiring a custom touch, our team is equipped to modify the exterior to your specific requirements, enhancing both the aesthetic and functional appeal of your home.
Porch and Deck Options: Extend your living space outdoors with our customizable porch and deck options. Whether you're looking for a cozy front porch to relax on or a spacious deck for entertaining, we can design and build an outdoor area that complements your home perfectly.
Solar Power Packages: Embrace sustainability and efficiency with our solar power packages. These options allow you to harness renewable energy, reduce your carbon footprint, and potentially lower your energy costs. Our team will work with you to determine the best solar solution for your specific needs and location.
With Kingdom Builder Group, the possibilities for personalizing your home are limitless. We're dedicated to ensuring that your new home is not just a place to live, but a space that truly represents you and your lifestyle.
Final Inspection
As we approach the completion of your ADU or home, our team thoroughly adds the final touches, ensuring every detail aligns with your expectations. This is followed by a thorough final inspection, where we rigorously assess the quality, functionality, and compliance of your unit with all relevant standards and regulations. Our commitment is to deliver a home that not only meets but exceeds your expectations. Once everything is in perfect order, we facilitate the process of obtaining your certificate of occupancy from the local building department, marking the official readiness of your new unit. The culmination of this process is a momentous occasion – the handover of the keys to your new ADU or home, ready for you to begin making memories.
Payment: final 5% at certificate of occupancyBOXABL Casita timeline
BOXABL Casita Timeline, Permits & Inspections
What to expect on a BOXABL Casita project in Arizona, and how state and local permits and inspections fit in.
- Before permit approvalFeasibility & site reviewLot, access and utilities
- State & local approvalsState plan approval and local permits
- About 2 months from permit approval to completion (estimate)Site prep, foundation & utilitiesBuilt on site
- Factory production & deliveryScheduled with the factory
- Set, connect & inspectState and local sign-off
- Move in
Permit requirements: state and local
A BOXABL Casita is a factory-built building, so it needs both state and local approvals.
- State plan approvalUnder the Arizona Department of Housing (ADOH) factory-built building program, the unit’s plans are approved by the state, and each module carries an Arizona Modular Certificate.
- State installation permitBefore installation work starts, the installation and foundation plans are approved by ADOH and an installation permit is issued, either by ADOH or by a local authority that has an inspection agreement with the state.
- Local permitsYour city or county permits zoning, setbacks and placement, plus the other site work. In Phoenix, that includes an On-Site Permit, a building permit for other on-site construction and a separate water and sewer tap permit.
How inspections work on a modular project
Inspections happen in two places: in the factory and on your property.
- In the factoryThe unit is inspected in the plant under the state program, by ADOH or an ADOH-approved third-party inspection agency, and carries its Arizona certificate when it ships.
- On site, under the state permitThe foundation, the setting of the unit and the utility connections are typically inspected under the state installation permit, by ADOH or a local agency working under agreement with the state.
- Local inspectionsYour city or county inspects the site work it permits.
- Sign-off before move-inBoth state and local sign-offs typically come before move-in. In Phoenix, that includes a certificate of occupancy from the City.
Licensed in Arizona
In Arizona, factory-built (modular) units must be sold through a dealer licensed by the Arizona Department of Housing and installed by an appropriately licensed installer. Kingdom Builder Group holds both an Arizona Department of Housing factory-built building dealer license and a modular building installer license.
- Arizona ROC #348837
- AZDOH MHD #9171
Timelines are estimates only and can vary by project and scope of work, as well as permitting, site conditions and utilities. We’ll map out yours after we learn about your property.
Tax considerations
Potential tax benefits for rental & business use
Planning to rent your casita or use it for business? Depreciation may help. How much depends on how the unit is classified and used. The One Big Beautiful Bill Act made 100% bonus depreciation permanent for qualifying property acquired after January 19, 2025.
The building itself
A casita set on a permanent foundation is generally treated as a building. Rental buildings are usually depreciated over 27.5 years (or 39 years for some short-term rentals), and buildings generally don’t qualify for bonus depreciation.
Some components may qualify
Items with shorter recovery periods, such as appliances, furnishings and certain site improvements, may qualify for 100% bonus depreciation. A cost segregation study is the usual way to identify them.
Section 179
Section 179 generally applies to equipment and other personal property used in a business. It usually doesn’t cover a residential rental building, and property used mainly for lodging is generally excluded, with limited exceptions.
A casita used only for family or guests isn’t depreciable.
FAQ
Frequently asked questions
How does Kingdom Builder Group's purchasing and installation process work?
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It has 8 steps: a Virtual Site Visit, project deposit and financing, permitting and HOA coordination, site preparation and foundation installation, utilities installation, unit delivery, custom exterior finishes, deck and solar options, and final inspection through your certificate of occupancy.
Which BOXABL model can be installed in Arizona?
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Right now the BOXABL Casita (the two-door model) is the only BOXABL model approved for installation in Arizona. KBG also builds custom site-built casitas and ADUs if you need a different size or layout.
What is a Virtual Site Visit and how much does it cost?
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It's a 60-minute video call with Patrick, Robert or Kyle from KBG. We place the unit on your property in canibuild site-planning software so you can see how it fits, review the layout and see potential utility connections. It costs $99, is non-refundable, and is credited toward your final invoice if you build with KBG.
What do I need for my Virtual Site Visit?
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Your property address and your parcel number (APN). You don't need to be at the property; you can join the video call from anywhere.
How much does a turnkey BOXABL Casita project cost?
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Turnkey BOXABL Casita projects with Kingdom Builder Group start at $150,000, including the Casita unit. That is a starting price: the final price depends on your site and scope, and pricing is confirmed after scope review. Custom exterior finishes, porch and deck options, and solar packages are optional.
How much is the deposit, and where does my money go?
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A $5,000 project deposit secures your selection and starts your project. All project funds, including the deposit, go into an escrow account with KBG's partners at Pioneer Title Agency.
What is the payment schedule?
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After the $5,000 deposit, the balance is paid in 4 milestones: 15% at permit submission, 30% at permit approval, 50% when your BOXABL is ready for shipping and delivery, and the final 5% at the certificate of occupancy. This is our standard payment schedule for a single BOXABL Casita unit. Projects with more than one unit or added scope may follow a different schedule, which we'll outline in your written proposal.
Do I need financing approval before I start?
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Yes. KBG requires proof of funds or a pre-approval letter for financing, and can connect you with preferred financing partners.
Does KBG handle permits, HOA approval and utility connections?
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Yes. KBG assists with obtaining permits and with HOA requirements and approvals, prepares the site and installs the foundation, and handles utility connections for water, electricity, sewer or septic, and internet.
How long does a BOXABL Casita project take?
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About 2 months from permit approval to completion (estimate). Timelines are estimates only and can vary by project and scope of work, as well as permitting, site conditions and utilities. We’ll map out yours after we learn about your property.
What permits and inspections does a BOXABL Casita need in Arizona?
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Both state and local approvals. The Arizona Department of Housing approves the plans, the unit is inspected in the factory, and an installation permit is issued by the state or a local authority working with it. On site, the foundation, setting and utility connections are typically inspected under the state installation permit, and your city or county permits and inspects zoning, placement and the other site work. Both state and local sign-offs typically come before move-in.
Who can sell and install a BOXABL Casita in Arizona?
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In Arizona, factory-built (modular) units must be sold through a dealer licensed by the Arizona Department of Housing and installed by an appropriately licensed installer. Kingdom Builder Group holds both an Arizona Department of Housing factory-built building dealer license and a modular building installer license. Our license numbers: Arizona ROC #348837 · AZDOH MHD #9171.
Can I customize the exterior, add a porch or deck, or add solar?
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Yes. The standard shell is fully livable as-is. KBG can customize exterior finishes, design and build porch and deck options, and offer solar power packages.
Can a BOXABL Casita qualify for bonus depreciation or Section 179?
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It depends on how the unit is classified and used. A casita on a permanent foundation is generally treated as a building, which usually doesn’t qualify for bonus depreciation or Section 179, though some components may. Kingdom Builder Group is not a tax advisor, and this is general information, not tax or legal advice. Please consult a qualified CPA.
Is Kingdom Builder Group licensed in Arizona?
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Yes. Kingdom Builder Group, LLC is a licensed, bonded and insured Arizona general contractor, ROC #348837, based in Phoenix and serving Phoenix, Mesa, Tempe, Scottsdale, Chandler, Gilbert, Glendale, Peoria, Avondale and nearby Valley communities.