TopFlight Builders

Addition · Alpharetta, GA

Home Additions in Alpharetta, GA

Serving Fulton County — Fulton County School District (Alpharetta HS, Milton HS).

Call (404) 369-7129

Alpharetta homeowners adding square footage are typically targeting primary suite expansions, multi-car garage additions with finished bonus space above, or screened outdoor rooms that extend the livable footprint. The lot premiums and property values in this market justify the investment, and a well-executed addition here consistently returns more than it costs.

Fulton County handles permitting for Alpharetta, and Windward's HOA has architectural review requirements that we factor into the design and permit submission process — we've navigated both processes multiple times in this market.

Our Addition Process in Alpharetta

  1. 1Architectural planning and permit submission
  2. 2Foundation and structural framing
  3. 3Roof tie-in and exterior weatherproofing
  4. 4Electrical, plumbing, and HVAC extension
  5. 5Insulation, drywall, and interior finishing
  6. 6Exterior matching — siding, trim, and paint

Materials We Use

  • LVL beams and engineered lumber
  • Hardie board or matching siding
  • Architectural shingles
  • Energy-efficient windows and doors
  • Matching interior finishes

Our Work

Recent Projects Near Alpharetta

We actively serve Alpharetta and Fulton County — our portfolio includes projects throughout the Greater Atlanta area. Visit our full portfolio to see completed work, or call us at (404) 369-7129 to discuss your project.

Serving Alpharetta from Our Marietta HQ

Drive from our Marietta headquarters: ~28 miles via I-285/GA-400, ~35–40 min.

The drive to Alpharetta is well within our regular service range — our crews make the trip consistently, which means your project gets the same level of oversight and responsiveness as a job in our own backyard. We don't pad timelines or reduce site visits because of distance.

What to Expect — Investment Range

Home additions in Greater Atlanta typically range from $80,000 for a single-room addition to $200,000+ for a full second floor or primary suite addition.

Projects in Alpharetta consistently trend toward the higher end of that range — the market expectation here is premium materials and execution, and the home values justify that investment.

Permit and plan approval can take 6–10 weeks in Cobb and Cherokee counties — starting the planning process early is critical.

Frequently Asked Questions

How long does a addition project take in Alpharetta?

Home additions typically take 4–6 months from permit approval to final inspection. Permit and plan review in Cobb and Cherokee counties adds 6–10 weeks before construction begins — we factor this into the overall timeline from day one.

Alpharetta homeowners often have specific material selections already in mind — how does your process accommodate that?

We welcome homeowners who've done their research — it streamlines the selection phase significantly. We work from your specifications, confirm compatibility with the existing rough-in conditions, coordinate vendor deliveries into our project schedule, and apply the installation craftsmanship those materials deserve. The design direction is yours; the execution is ours.

Do you pull permits in Fulton County?

Yes — we handle all permitting for projects in Fulton County. We prepare the documentation, submit the application, schedule all required inspections, and keep you informed at each stage. You don't need to manage the permit process — that's part of what you're hiring us to do.

Location

Marietta, GA 30066

Serving Greater Atlanta

Call (404) 369-7129Free Estimate