Phoenix Construction & Development—Built Around Your Vision.
Residential • Commercial • Casitas & ADUs • Multifamily • Development
Kingdom Builder Group provides residential construction, commercial tenant improvements, custom site-built casitas, ADUs, modular homes, utility connections, multifamily construction and development services throughout Phoenix and the surrounding Valley. We prioritize projects in Phoenix, Mesa, Tempe, Scottsdale, Chandler, Gilbert, Glendale, Peoria, Avondale and nearby communities while serving clients across Arizona.
Whether you are planning a home remodel, commercial build-out, casita, ADU, multifamily property or ground-up development, our team helps coordinate early planning, budgeting, site work, utilities and construction. We work closely with homeowners, business owners, investors and development partners to create practical solutions suited to Arizona’s climate, building requirements and long-term growth. From the first conversation through project completion, our goal is clear communication, dependable coordination and a finished project that supports your vision.
Our construction services
Residential
Kitchens, bathrooms, additions, whole-house renovations, indoor-outdoor living and new construction homes.
Learn more →Commercial
Commercial tenant improvements and build-outs for business and property owners.
Learn more →Casitas & ADUs
Custom site-built casitas and ADUs, plus the BOXABL Casita, the two-door model approved in Arizona.
Learn more →Multifamily
Multifamily construction and multifamily products for owners and investors.
Learn more →Development
Feasibility, preconstruction, site work and utility connections for community developments.
Learn more →Our story
Phoenix-Based. Arizona-Wide Construction Experience.
Kingdom Builder Group is a family-founded construction and development company combining generations of hands-on building experience with modern project management and innovative construction methods. Our Phoenix-based team prioritizes the Valley while serving residential, commercial, modular and development clients across Arizona.
We help manage remodeling, additions, custom site-built casitas, ADUs, outdoor living projects, tenant improvements, new construction homes, modular housing, multifamily products and community developments—from early feasibility and preconstruction through site work, utility connections and final completion.
This includes indoor-outdoor living spaces, kitchen and bathroom remodeling, home additions and whole-house renovations tailored to the way Arizona families live.
Our Arizona ROC credential and commitment to clear project coordination help clients move from an initial property, plan or idea toward a buildable construction strategy.
Licensed, Bonded & Insured · Arizona ROC #348837A family legacy
Building affordable homes since the mid-90s
- 90sChicagoCo-Founder Patrick Smythe introduced modular construction to Cook County with developments like Pepper Path Homes.
- ARKArk Building SystemsA facility dedicated to manufacturing essential building components and providing turnkey solutions for affordable homes.
- AZToday · ArizonaCarried forward by his sons, Co-Founders Kyle and Robert Smythe, bringing modular housing and community development to Arizona.

Housing America · Our mission
The American Dream of Home Ownership
“We're here to provide affordable housing for Americans, to give people hope and something tangible, and to bring back the American dream of home ownership.”
Housing America is our mission: building homes and spaces that truly make a difference for the families, veterans and communities who live and work in them.
Today, the Kingdom Builder Group team combines decades of experience, a shared passion for innovation in affordable housing, and a commitment to serving veterans and underserved communities.
Affordable Housing
Empowering communities with accessible and affordable housing solutions, for students, seniors and individuals with disabilities, and rehabilitation and re-entry programs.
Explore →Veteran Housing
Veterans, having honorably served our nation, deserve housing options that cater to their unique needs.
Explore →Freedom Pointe (Proposed)
A proposed 59-unit veteran housing community planned for Mesa, designed to provide attainable, dignified and innovative homes for U.S. military veterans.
See the concept →BOXABL Casita · Arizona
A BOXABL Casita, Installed by a Licensed Arizona Contractor
Kingdom Builder Group is an Arizona BOXABL dealer and certified installer. Right now the BOXABL Casita (the two-door model) is the only BOXABL model approved for installation in Arizona, and our team handles the site work, permits, utility connections and installation.
Need a different size or layout? We also build custom site-built casitas and ADUs.
$99 Virtual Site Visit, credited to your final invoice when you build with KBG.
The BOXABL Casita at a glance
- 361 sq ft studio layout
- 9′6″ ceilings with 8′ doors and windows
- Full-size kitchen and a spacious bathroom
- Two-door model, the only BOXABL model approved in Arizona
- Delivered and installed by KBG, AZ ROC #348837
Featured on CBN: Affordable Housing News Segment
Kingdom Builder Group was featured in a CBN news segment discussing affordable housing and innovative construction solutions. Watch the segment to learn more about our approach to creating attainable housing opportunities for Phoenix-area communities, veterans and families.
How we work
Building Homes, Businesses and Stronger Arizona Communities
Our mission is to help homeowners, business owners, property owners and development partners create durable, practical spaces throughout Phoenix and Arizona. KBG supports projects ranging from remodeling, casitas and new homes to commercial construction, multifamily housing and attainable community developments, including veteran-focused opportunities.

- 1Evaluate goals, constraints & next steps
- 2Preconstruction & budgeting
- 3Permitting, procurement & scheduling
- 4Field execution through completion
We bring construction planning, site coordination, utility connections and project management together so clients can make informed decisions and move promising projects toward completion.
Whether a project begins with an existing home, commercial property, vacant parcel or larger development concept, we help evaluate goals, constraints and practical next steps. Our team works with owners and project partners to coordinate preconstruction, budgeting, permitting, procurement, scheduling and field execution while keeping quality, function and long-term value at the center.
We believe strong projects come from strong relationships and clear accountability. From kitchens, bathrooms, additions and indoor-outdoor living spaces to tenant improvements, new homes, multifamily communities and veteran-focused housing, Kingdom Builder Group approaches each opportunity with hands-on construction experience and a commitment to building spaces that serve people well for years to come.
FAQ
Frequently Asked Questions
What areas does Kingdom Builder Group serve?
Kingdom Builder Group is based in Phoenix and serves Phoenix and the surrounding Valley, including Mesa, Tempe, Scottsdale, Chandler, Gilbert, Glendale, Peoria, Avondale and nearby communities, while also serving clients across Arizona.
Is Kingdom Builder Group licensed, bonded and insured?
Yes. Kingdom Builder Group, LLC is a licensed, bonded and insured Arizona general contractor, ROC #348837.
What types of projects do you build?
Residential construction and remodels (kitchens, bathrooms, additions and whole-house renovations), commercial tenant improvements and build-outs, custom site-built casitas and ADUs, BOXABL Casita installation, multifamily construction, and development services such as feasibility, preconstruction, site work and utility connections.
Which BOXABL model can be installed in Arizona?
Right now the BOXABL Casita (the two-door model) is the only BOXABL model approved for installation in Arizona. If you need a different size or layout, we also build custom site-built casitas and ADUs. See our process for how a BOXABL project works.
What is a $99 Virtual Site Visit?
It's a 60-minute video call with our team. We place the unit on your property in 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 to your final invoice when you build with KBG. Book a Virtual Site Visit.
How much will my project cost?
Every site and scope is different, so we don't publish one-size-fits-all prices. Scope review and pricing come after we learn about your property and goals, usually through a site visit. Tell us about your project to get started.
How do I get started?
Start your project by telling us about your property, plans and goals, or call (480) 524-1156. For a BOXABL Casita, you can also book a $99 Virtual Site Visit.
What are your business hours?
Monday through Friday, 8 AM to 5 PM, and Saturday, 9 AM to 5 PM. We're closed on Sunday.

