Home addition with seamless rooflines at dusk
Additions · Second Stories · In-Law Suites

More room to live — additions built to match your home.

Outgrown your space but love your street? Add the room, not the move. Second stories, in-law suites, and bump-outs designed so the seam disappears — inside and out.

  • Design–build since 2007
  • Seamless match, inside & out
  • Keep your street & your rate
  • Fixed-scope pricing

Get your free addition consultation

Tell us the room you need. We reply within one business day.

No obligation. We reply within one business day · or call (770) 462-9275

2007Building additions since
320+Projects delivered
1Team, design to keys
0Seams you'll notice
Why add with Summit

The new space should look
like it was always there.

01

A seamless match

The hard part isn't the new room — it's marrying it to the existing house. We match rooflines, trim profiles, and materials so nothing looks bolted on.

02

Stay where you are

Add the square footage your family needs without leaving the neighborhood you love or the mortgage rate you locked in.

03

One team, structural to finish

Engineering, permits, framing, and finish all under one roof — so your addition is sound, legal, and beautiful.

How it works

More room in
three steps.

01

Map the need

We walk your home and lot, understand the space you're missing, and show you where and how it can grow.

02

Design & match

We design the addition to disappear into the existing home, settle every detail, then build it on a clear schedule.

03

Move right in

We hand back a bigger home that feels original — same character, more room, fully warrantied.

Indoor-outdoor space,<br />done <em>right.</em>Emerald II · Outdoor Living
Craft that carries over

Indoor-outdoor space,
done right.

Covered living, fireplaces, and a 30-ft accordion glass wall that merges inside and out. Whether it's a second story or a multi-season porch, we build additions with the same craft as our custom estates.

Secondstories
In-lawsuites
Bump-outs& sunrooms
See the project →
What clients say

Families who found
the room they needed.

★★★★★
Our second story looks like the house was built with it. Nobody believes it's an addition.
The PattersonsSecond Story · Fayette
★★★★★
We added an in-law suite for my mother. It's private, beautiful, and matches the house perfectly.
D. OkaforIn-Law Suite · Henry County
★★★★★
Summit added the room we needed without us leaving the street we love. Worth every penny.
The Reyes FamilyAddition · Clayton
Good to know

Addition
questions.

That's the whole point. We match rooflines, brick or siding, trim profiles, and finishes so the addition reads as original — inside and out.

Second stories, primary-suite additions, in-law and guest suites, bump-outs, sunrooms, and multi-season porches. If you need the room, we can add it.

Yes. As a design-build firm we manage engineering, permitting, and construction together, so your addition is structurally sound and fully code-compliant.

Usually not. We seal off the work area and phase the build so your family can stay in the home through most of the project.

South Atlanta and the greater metro — Henry, Clayton, Fayette, Coweta, and surrounding counties from our Jonesboro studio.

Add the room,
not the move.

Tell us the space you need. We'll walk your home, show you where it can grow, and give you a clear plan and price — no pressure.

Get your free addition consultation

Tell us the room you need. We reply within one business day.

No obligation. We reply within one business day · or call (770) 462-9275