Home Additionsin Chapel Hill & the Triangle
More space that looks original, not bolted on — new wings, second stories, bump-outs, and in-law suites, matched seamlessly to your existing home and engineered to code.
The work
What's Included
A good addition disappears — rooflines meet correctly, siding and trim match, and the inside flows like the house was always this size. We handle the design, engineering, and construction as one scope, so the seam between old and new is somewhere you'll never find it.
- Design & structural engineering
- Foundations & framing
- New wings, second stories & bump-outs
- In-law suites & primary retreats
- Seamless exterior matching
- Permits, surveys & inspections
Why one team
One Contract. One Point of Contact.
An addition ties new foundation, framing, and roofing into a house that was built to its own logic decades ago. If the designer, engineer, and builder work separately, the tie-in is where the surprises land. Planning it as one scope means the connection to your existing house is designed before anyone breaks ground.
“Let the house tell you what’s possible.”
Meet Alex Sayre, who runs every projectThe process
How Your Project Runs
Consultation
We walk your space, talk through what you want, and give you an honest read on scope, budget, and what’s realistic.
Plan & Proposal
You get a clear, detailed proposal — scope, timeline, and price — with no vague line items or surprises later.
We Build
Our team handles every trade and every permit, keeps the site clean, and keeps you updated so you're never left guessing.
Final Walkthrough
We walk the finished project together and don't consider it done until you're satisfied.
FAQ
Home Additions: Common Questions
Should we build up or out?
It depends on your lot, setbacks, your existing foundation and framing, and how you want the house to live. A second story keeps your yard but asks the existing structure to carry more; building out is often simpler structurally but uses lot area and has to respect setback rules. We'll walk you through both for your house.
Will the addition match my house?
That's the goal. Rooflines, siding, trim, windows, and interior finishes are matched to what you have, so the addition reads as part of the original house rather than something bolted on.
Do additions need permits and engineering?
Yes. Additions need building permits and inspections, and usually structural engineering and a check against your lot's zoning and setback rules. We handle all of it as part of the project.
Where we work
Home Additions Across the Triangle
Argyle Building Company is based in Chapel Hill and takes on home additions projects across Chapel Hill, Carrboro, Durham, Raleigh, Cary and Hillsborough, plus the surrounding communities. Not sure if you're in our service area? Just ask.
- Chapel Hill, NC
- Carrboro, NC
- Durham, NC
- Raleigh, NC
- Cary, NC
- Hillsborough, NC
Keep exploring
Related Services
- Primary Suite Retreats Bedroom, bath, and closet rethought as one private retreat — reworking the layout, borrowing space, or adding on, so the room you start and end every day in finally works.
- Design-Build Renovation Design and construction under one contract and one team — so the plan is priced and buildable from day one, and the people who drew it are accountable for building it.
- Outdoor Living Decks, patios, porches, and outdoor kitchens that extend your living space outdoors, combining carpentry, masonry, and electrical into one finished result.
Free estimate
Ready to Start?
Tell us about your project and we'll get back to you within one business day. No pressure, no obligation — just an honest conversation about what's possible.
Prefer to Talk? Call or Text (919) 726-3862