ONE Residential Builders is a Denver-based construction firm led by founder Gary Fuller, whose background spans architecture, business, and hands-on building. The firm focuses on high-end custom homes and major remodels across the Denver metro area, with a small team and a deliberately limited project load.
Explore our full portfolio, including current New Home Builds and Remodels, or browse the complete Project Gallery.
ABOUT US
A Boutique Approach to Luxury Home Building
ONE Residential Builders takes on a limited number of projects at any given time, by design. That focus means every client gets consistent, hands-on attention from a builder who’s present on site day to day, rather than juggled across a large slate of jobs.
Founder Gary Fuller brings formal architectural training, a background in corporate business, and years of hands-on building experience. That mix shapes how the firm operates: structured and disciplined, but grounded in craftsmanship.
The firm’s values center on quality over volume, clear communication, and building long-term relationships with clients rather than one-off transactions. ONE Residential Builders has worked with prominent local families and industry leaders who wanted a builder they could trust with a major, personal investment.
OUR PHILOSOPHY
Designing Homes That Feel Right, Not Just Look Right
“Home is your sanctuary, a place where you feel you belong. It protects us, connects us with all the simple rituals of life. It’s where you go to unwind, escape, spend time with loved ones, entertain, a special space. For me, in the simplest of terms, home is where the heart is. For those individuals and families who are looking to build or modify your sanctuary, I would be honored to be part of this journey.”
— Gary Fuller, Founder
Gary’s design philosophy draws on more than architectural training. His study of Vastu Shastra, a traditional discipline concerned with how light, energy, and spatial layout shape the way people experience a space, informs how each home is planned. The goal isn’t just visual appeal but rather a home that genuinely supports how a family lives day to day.
That thinking shows up in practical ways, layouts built for connection and calm, and finish selections made with intention rather than convenience. Gary and partner Luke Sprague are both involved directly with clients and designers from the earliest planning stages, so that philosophy carries through the entire build.
Learn more about our design philosophy.
If that resonates with you, let’s start a conversation.
OUR PROCESS
A Clear, Collaborative Build Process
Every project follows a structured path from first conversation to final walkthrough, initial consultation, design and planning, itemized budgeting, construction with a single point of contact, finish selection, and a follow-up warranty period after move-in. Because a team lead stays involved throughout, clients deal with one consistent point of contact rather than being handed off between departments.
See the full step-by-step breakdown on our Our Process page.
SERVICE AREAS
Communities We Serve
ONE Residential Builders works throughout the Denver metro area, including:
- Hilltop
- Observatory Park
- Greenwood Village
- Cherry Hills
- Larkspur
- Castle Pines
- Castle Rock
- Lone Tree
- Littleton
- Centennial
- Crestmoor
- Downtown Denver
- Riverfront Park
- Chenango
- Parker
- Foxfield
- Chapparal
TESTIMONIALS
What Our Clients Say
Read more Client Reviews and Partner Reviews.
FAQ
Frequently Asked Questions
What areas does ONE Residential Builders serve?
We build custom luxury homes and handle major remodels throughout the Denver metro area, including Cherry Hills, Greenwood Village, Castle Pines, Castle Rock, Lone Tree, Littleton, Centennial, Parker, and other nearby communities.
What makes ONE Residential Builders different from other luxury home builders?
We intentionally keep our team small and take on a limited number of projects at a time. That means you work directly with founder Gary Fuller and partner Luke Sprague throughout your build, not a rotating cast of project managers, and one of us is on site consistently from start to finish.
What is your design and build process like?
Every project moves through the same structured path: an initial consultation, design and planning, itemized budgeting, construction with a single point of contact, finish selection, and a follow-up period after move-in. You’ll always know who to call and where things stand.
Who will I actually be working with?
Gary Fuller and Luke Sprague, directly. Gary brings architectural training and decades of building experience; Luke brings close, day-to-day attention on site. Between the two of them, there’s no handoff to unfamiliar staff partway through your project.
Do you only build new homes, or do you handle remodels too?
Both. We take on new custom home builds as well as major remodels, and our approach to attention and involvement is the same either way.
How do I get started?
Reach out through our Contact page to set up an initial conversation about your project.
NEXT STEPS
Let’s Start a Conversation
Ready to talk through your project? Contact Us to get started.
