Home Additions in Minnesota and Wisconsin
Custom-Built. Crafted to Blend Perfectly. Made to Last.
At ATL Custom Construction, we design and build home additions that blend seamlessly with your existing home, both in style and in the way you live. Based in Minnesota and Wisconsin, we help homeowners add space with care – for a growing family, a home office, or just more room to breathe.
Details That Make or Break a Home Addition
Successful home additions depend on far more than construction skill. They require the ability to step into an existing structure and build as if you were there the day it was designed.
That means understanding how to match materials no longer in production, tie in new rooflines without visual interruption, and carry over trim and flooring so cleanly that the transition disappears.
ATL Custom Construction builds to that standard.
Additions are often more complex than new builds. They come with structural unknowns, tight lot lines, aging infrastructure, and the challenge of building within an active household.
Our team manages everything, from behind-the-scenes coordination with inspectors and engineers to the daily work of keeping the site clean, safe, and livable for the family still inside.
A Personalized Building Process That Puts You First
We take on a select number of projects at a time and give each one the attention it deserves. Clients stay involved through each phase of construction, with a builder who’s responsive, respectful of your home, and committed to long-term quality.
ATL Custom Construction keeps things simple and focused by following a clear five-step approach.
Our Process:
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Discovery Call: It starts with a conversation. We ask the right questions to understand your goals, your timeline, and the practical needs driving your project. This step is as much about listening as it is about planning – and it's the foundation for everything that follows.
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In-Person Consultation: After the call, we schedule a site visit. This allows us to walk the space together, take measurements if needed, and talk through potential ideas or limitations. Seeing the home in person gives context, and that context shapes better decisions.
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Estimate Delivery: Once we understand the scope, we prepare a detailed estimate. This comprehensive document outlines the scope of work, projected costs, and timelines, ensuring transparency and helping you make informed decisions.
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Sign Contract: When the details feel right, we put it in writing. The contract confirms scope, schedule, responsibilities, and expectations. It's not just a formality – it's part of the trust we build with every client.
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Begin Construction: With everything in place, work begins. The crew shows up when they say they will. The job site stays clean. Updates come regularly. And if anything changes, you'll hear it from us directly. From day one through completion, the focus stays on doing the work right.
To see the full breakdown, view our process.
Why Choose ATL Custom Construction?
For the past 15 years, we have earned the trust of homeowners throughout Minnesota and Wisconsin. Their words say more than any marketing can.
Amanda O.
“It was priceless to be able to trust Andrew and the crew inside our home… They were perfectionists and it shows.”
Drew L.
“Andy is very professional and has excellent attention to detail. His ability to strive for perfection and quality in every situation during the construction process is enough for me to highly recommend.”
Racheal B.
Andy is an expert in his craft. His attention to detail is evident in the high quality work he performs. We highly recommend Andy and ATL Custom Construction for your next project."
Recent Projects
FAQs: Ask the Experts About Home Additions
How much does a typical home addition cost?
Costs vary depending on size, layout, materials, and how the new space connects to the existing structure. Once we understand the scope, you’ll receive a detailed, written estimate that outlines everything clearly before work begins.
Can I stay in my home while construction is underway?
In most cases, yes. Our team plans a project with your daily life in mind, using dust barriers, keeping workspaces clean, and maintaining a respectful presence throughout the build.
Will the new space look like part of the original home?
That’s always the goal. ATL Custom Construction specializes in seamless additions – matching siding, continuing architectural lines, and integrating finishes so everything feels cohesive.
How long does it take to complete a home addition?
Most additions take between two to four months once construction begins. Planning, design, and permitting are handled in advance so that the build itself stays on schedule.
Is it worth investing in a home addition instead of moving?
For many homeowners, yes. An addition gives you the flexibility to stay in a home you love while gaining the space you need. When well-designed and well-built, it often adds significant resale value.
We answer more of your questions on our FAQ page.