ADU & Garage Conversions

Colorado Accessory Dwelling Unit Builders Designing Homes
That Evolve with You

Every ADU begins with a story. Sometimes it’s a family looking for a place where a parent can live independently but nearby. At Jackson Design Build, we believe additional space should feel like it’s always belonged. We transform underused areas into refined living environments, whether that means creating a guest suite, a rental opportunity, or a retreat just steps from your door. Every project begins with a conversation — about lifestyle and vision. ADUs involve unique planning considerations, utilities, setbacks, egress, ventilation, structural assessments, and parking. We guide homeowners through these requirements in plain, accessible language, turning what could be a confusing checklist into a clear, collaborative roadmap.

Castle Pines Custom Home exterior front view - Garage Conversions

Turning Ideas into Inspiring Spaces with an ADU Construction Company in the South Denver

Building an accessory dwelling unit is an opportunity to expand the way your home supports your life at a whole new scale. We specialize in full-site development, complex layouts, and long-lasting materials that harmonize with your home’s architecture. Natural light, custom floor plans, elevated finishes, and thoughtful flow define every project. During this phase, we also evaluate zoning constraints, fire-separation requirements, and mechanical loads, translating regulations into clear explanations so homeowners understand the “why” behind each design choice. There’s a certain artistry in creating spaces that feel meaningful and expansive. Even when the footprint is modest, the design demands more — every detail has to work harder, and clear communication ensures each decision supports long-term performance.

Cherry Hills Village Remodel & garage conversions services in Parker, CO

ADU Conversions That Turn Potential Into Purpose

An ADU is often the most flexible square footage a property can offer. We help you envision how each element can serve both function and comfort while maintaining the sophistication of the main home. Our team guides you through layouts, materials, and selections so you can clearly imagine the finished result.

A successful ADU conversion requires an understanding of structure, systems, and space — and the ability to reconfigure them without compromise. Whether we’re executing full-scale transformations or constructing custom pole barns that blend performance with design, Jackson Design Build leads with architectural integrity and disciplined construction. Each phase unfolds with measured precision: structural tie-ins handled thoughtfully, utilities coordinated seamlessly, and craftsmanship aligned with the standards that define your home. The result is more than a renovation; it’s an expansion of what your property can become.

Expanding Space, Enriching Life

An accessory dwelling unit or conversion is more than a construction project, it’s a way to make your home more versatile, valuable, and deeply personal. As construction nears the finish line, there’s always a moment when the ADU feels complete for the first time, morning light stretching across new flooring, clean lines connecting one function to another, and a sense of independence built into the layout.

Jackson Design Build creates spaces that feel complete and independent, not simply repurposed. Every project is built to meet the demands of long-term living, multi-generational needs, and high-end residential standards. These units aren’t side projects; they become meaningful extensions of your property — thoughtful, durable, and designed with the future in mind.

ADU & Garage Conversion FAQs

What is the difference between an ADU and a garage conversion?

An ADU, or accessory dwelling unit, is a secondary living space on the property with independent living functions such as a kitchen, bathroom, and sleeping area. A garage conversion transforms an existing garage structure into livable space. Some garage conversions qualify as ADUs, while others function as offices, guest suites, or flexible living areas.

ADU regulations vary significantly by municipality, zoning district, lot size, and HOA restrictions. 

Requirements may address: 

  • Parking 
  • Height limitations 
  • Utility connections 
  • Owner occupancy 
  • Setbacks 
  • Maximum square footage 


We help homeowners understand local requirements before design begins. 

Good design makes the space feel intentional rather than improvised.

Most ADUs require coordinated utility planning. 

This may include: 

  • Electrical service upgrades 
  • Plumbing extensions 
  • Sewer connections 
  • Gas line capacity 
  • Separate HVAC systems 
  • Internet and data access 


Infrastructure planning is one of the most important parts of a successful ADU project.

Absolutely. Many homeowners build ADUs to support multigenerational living while maintaining privacy and independence. ADUs can create flexible living arrangements that adapt over time as family needs evolve.

Garage conversions often involve more complexity than homeowners initially expect. 

Common challenges include: 

  • Structural modifications 
  • Slab elevation differences 
  • Moisture and insulation issues 
  • Utility upgrades 
  • Parking compliance 
  • Permit requirements 
  • Limited natural lighting 


Careful planning helps ensure the finished space feels comfortable, durable, and code-compliant.

See What Our Client Says

Craftsmanship that speaks for itself, trusted by homeowners and businesses alike.

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After living in our home for 14 years, we finally took on an extensive main-level remodel, and we’re so glad we chose Jackson Design Build for the project. They completely transformed our kitchen and living spaces, including new flooring, doors, cabinetry and a custom media wall, and we couldn’t be happier with how everything turned out. Dave, Billy and Nathanial were all wonderful to work with throughout the entire process. Billy was incredibly responsive and did a great job keeping us informed and communicating throughout the project. Nathanial’s attention to detail really stood out, and he was always thorough and thoughtful. We always felt comfortable asking questions or talking through decisions as they came up, and truly felt like we were in good hands from beginning to end. The subcontractors they brought into our home were also excellent, and we were consistently impressed with the quality of their work. Dave brings more than 45 years of experience to the business, and it shows. He is knowledgeable, fair and trustworthy, and we really appreciated his guidance throughout such a large project. Remodeling your home can be stressful, but having a team you trust makes such a difference. We’re so happy with our new space and would absolutely recommend Jackson Design Build to anyone considering a remodel.
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Ashleigh Arriola
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I have known the Jackson's for years. They're are great at communicating updates on your project. I would highly recommend the for your next custom home or remodeling project. Very professional
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Doug Wegener profile picture
Doug Wegener
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We cannot say enough good things about Jackson Design Build. Billy & Dave and their team are the best in the business- they are professional, knowledgeable, kind and patient. They took the time to really work with us to bring our vision to life and did it quickly and efficiently. They were respectful of our budget while never sacrificing quality and we are thrilled with how our home turned out. The attention to detail and the communication we had with them throughout the process was invaluable. If you’re thinking of remodeling or building, call Jackson Design Build.
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Dylan Katcher
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Rocky Mountain carpet worked with Jackson Design Build for years. Was a great experience with a very professional builder. Dave and Billy were extremely beneficial to our company. I would highly recommend them.
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james parscal
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We did a major addition to our home in 2024 which included a primary bedroom suite, kitchen remodel and opening up our living space. Jackson Design and particularly Billy Jackson who we worked with on a daily basis did an excellent job in working with his subs and vendors. The project was completed in a timely manner with absolutely no delays. We were truly happy in going with Jackson Design after having talked to several contractors and would recommend them and use them again if the opportunity does arise.
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Veeru Dandavati
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We’ve had the pleasure of working with Jackson Design for several years as their electrical subcontractor, and it has always been a great experience. They are organized, reliable, and take pride in their work. Dave and Billy run their business with integrity, professionalism, and clear communication, which makes projects run smoothly from start to finish. We truly value the partnership and look forward to continuing to work with them on future projects. Highly recommend!
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Admin
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JDB is a great partner to collaborate with as a subcontractor. I’m looking forward to work with them on many more projects in the future.
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Viktor Gal
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Recently, I toured some projects of Jackson Design Build. As a builder, now retired, I see many things most people do not on these projects. From the initial designs thru the execution and finish, JDB is very attentive to detail. The fit and finish of their product demonstrates quality and skilled craftsmanship. Bravo to Dave, Billy and their craftsmen.
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D. Pate
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I have known Dave and Billy Jackson for many years. Over that time I have watched them build Jackson Design Build into one of the preeminent custom home builders in the front range of Colorado. Their dedication to quality ,innovation and, customer satisfaction is unparalleled. I would encourage anyone considering a custom build or major remodel to contact the Jackson Design Build team.
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Bob Bowell
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I have always admired Jackson Design Build. The co-owners, father Dave and his son. Billy, have created some of the most amazing homes. Their builds are anywhere from small customs to mega mansions. The hands on finish selections are some of the most beautiful collages I've seen. From eye popping architecture and design to the fine craftsmanship, Jackson Design Build would be my go to builder anytime.
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Philip Eidenschink