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Home Additions · Cumming, GA
Home Additions in Cumming, Georgia
Primary suites, in-law suites, sunrooms, and second stories built to match the home you already have.
Home Additions in Cumming
Additions that don’t look like additions
Most of Cumming filled in between 1995 and 2010, and those houses are now at the age where families outgrow them rather than move out of them. The lot is right, the schools are right, and the mortgage is better than anything on the market. What is wrong is that there is no primary suite worth the name, or a parent is moving in, or three kids are sharing one bathroom. An addition solves that without giving up the address.
The part that separates a good addition from an obvious one is the seam: where the new roofline meets the old, where the new floor meets the old, where the new brick or siding has to disappear into thirty-year-old material that has weathered. We design for that seam from the beginning, and it is the first thing we look at on the final walkthrough.
Scope of Work
Additions we build
Most additions run 3 to 6 months of construction, with design and permitting ahead of that.
Primary suites
A real primary bedroom, bath, and closet added where the house never had one that worked.
In-law and guest suites
Private, accessible living space with its own bath, and a separate entrance where the lot allows.
Second stories
Adding up when the lot will not let you add out, including the structural and foundation work underneath.
Kitchen and living expansions
Bumping out the back of the house to give the kitchen, keeping room, and dining space room to breathe.
Sunrooms and screened additions
Conditioned or three-season space built to match the existing roofline instead of looking bolted on.
Garage and bonus space
Added bays, workshop space, and finished rooms above.
Local Requirements
Permitting in Cumming and Forsyth County
Permitting is handled by Forsyth County Planning & Community Development, or the City of Cumming if the property sits inside city limits. Here is what actually shapes the schedule on a home additions project in Cumming.
Two different building departments
Whether your project is reviewed by Forsyth County or the City of Cumming depends on which side of the city limit line your parcel falls on. We confirm jurisdiction before drawings are started, because the submittal packages are not the same.
Impervious surface on a lot that is already built on
An addition adds roof, and often driveway and patio with it. In Forsyth’s overlay districts that runs into impervious surface limits, so we total the existing hard surface before we size the addition.
Septic approval comes before the building permit
If your home is on septic, Forsyth County Environmental Health has to sign off on the proposed footprint before a building permit can be issued, and that review can take twenty business days or more. It is the item most likely to move your start date, so we file it first.
Watershed and stream buffers north of town
Parts of northern Forsyth sit inside the Etowah Water Supply Watershed overlay, which carries impervious surface setbacks measured from the stream bank. On sloped or creek-adjacent lots we check this before laying out a footprint rather than after.
Realistic review windows
A complete custom home submittal in Forsyth County generally runs four to eight weeks, and complex grading, drainage, or a larger footprint can stretch that to ten or twelve. City of Cumming fire review typically closes within ten business days of the fee being paid.
Why GHIR
Why Cumming homeowners choose GHIR
Septic capacity gets checked before design
Adding bedrooms can change the required septic field. Forsyth County Environmental Health has to approve the footprint before a permit issues, and that review can run twenty business days or more. We start there.
Structure tied into what is already standing
A second story or a bump-out has to land on foundation and framing that can carry it. We engineer that connection rather than hoping the original builder over-built.
You keep living in the house
We stage the work, seal the work zone, and keep a protected path so your family is not camped in one room for four months.
Setbacks, overlays, and HOA review
Impervious surface limits, stream buffers north of town, and neighborhood architectural review all get resolved before drawings are final.
Project Collection
Recent additions and renovations in Cumming
Porch & Outdoor Living Addition
Smith Project
Cumming, GA
Addition & Kitchen Renovation
Topper Project
Cumming, GA
Kitchen Addition & Deck Rebuild
Cone Project
Cumming, GA
Full Home Renovation & Addition
Sneddon Project
Cumming, GA
Areas We Serve
Home Additions across Cumming & Forsyth
Cumming grew faster than almost anywhere in Georgia between 1995 and 2010, which means a large share of its housing stock is now twenty to thirty years old: good bones, dated layouts, and closed-off kitchens that no longer match how the families inside them actually live.
How It Works
Your home additions project, step by step
Free consultation at your home
We look at the existing structure, the roofline, the lot, and what you are trying to solve, then give a realistic range.
Design, structure, and budget
Plans that tie into the existing house structurally and visually, priced line by line.
Permits and approvals
Submittal to Forsyth County Planning & Community Development, or the City of Cumming if the property sits inside city limits, plus septic capacity, setbacks, overlays, and HOA architectural review as required.
Construction
We stage the work to keep as much of your home livable as possible, with dust control and a protected work path.
Walkthrough
A punch walkthrough where the new work meets the old. The seam is where we get judged.
★★★★★
“One team carried it from the first sketch through the final walkthrough. Design, permits, construction, finishes. We never had to chase anyone.”
Verified Google Review
Addition · Cumming, GA
Common Questions
Home Additions in Cumming FAQs
How long does a home addition take in Cumming?
Most additions run 3 to 6 months of construction, with design and permitting ahead of that. The permitting stretch varies most: if your home is on septic, Forsyth County Environmental Health approval can add twenty business days or more before the building permit can issue.
Will the addition match the existing house?
That is the whole job. We match rooflines, window proportion, trim profiles, brick or siding, and floor height. On a thirty-year-old house that usually means sourcing to match weathered material, not new-from-the-shelf material.
Is it cheaper to add on or to move?
It depends on the house, but in Forsyth County the math has been favoring additions for several years, because moving means giving up an older interest rate and buying back into a market that has not gotten cheaper. We will give you an honest budget range at the free consultation so you can actually compare.
What areas around Cumming do you serve?
We are based in Dawsonville and work throughout North Georgia, including Cumming, Cumming, Alpharetta, Johns Creek, Milton, Buford, Gainesville, Suwanee, Roswell, and Sandy Springs.
Are you a licensed general contractor in Georgia?
Yes. GHIR holds Georgia Unlimited GC licenses #GCCO006076 and #GCQA006072, plus Florida GC #CGC1527188. We are a NARI Atlanta member and fully insured.
Do you offer financing?
Yes. We offer unsecured project financing up to $150,000 with no home equity required. Ask during your free consultation.
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Ready to start your Cumming project?
Start with a free, no-pressure consultation and a realistic line-item budget. One team, one point of contact, from first idea to final walkthrough.