Greener Concepts Design + Build finishes basements in Alpharetta, Milton, Johns Creek, and Sandy Springs. Full conversions: ADUs, in-law suites, home theaters, gyms with finished baths. Founded 2008.
Most basement projects in Alpharetta aren't just "drywall and carpet." They're full conversions of unfinished space into real square footage.
That means dealing with what's actually there. Moisture control. Egress windows that meet code. HVAC extension into the new space. Electrical capacity. Insulation that works against an unconditioned slab. A finished bath with proper drainage, often with a sewage ejector pump. None of this is decoration. All of it is the build.
At Greener Concepts Design + Build, basement finishing runs through the same design-build process as a whole-home renovation. The team that draws your basement layout is the team that pulls permits and runs the trades. One contract.
Separate entrance, kitchen, full bath, code-compliant egress. The most common multi-generational ask in Alpharetta.
Acoustic isolation, wiring infrastructure, lighting design, tiered seating where the slope allows.
Impact-rated flooring and real ventilation. Sometimes a sauna or steam room.
An open plan with a bar, built to feel like upstairs rather than "downstairs."
Soundproofing and dedicated circuits. Daylight through egress windows.
When teenagers or returning college kids need privacy. Requires egress and proper conditioning.
Most homes in Alpharetta were built on slab or daylight basement foundations between the 1990s and 2010s. Two-story walkout basements with 8-9 foot ceilings are common.
That's a gift for finishing. You usually have good ceiling height, sometimes daylight on two sides, and rough plumbing pre-stubbed by the original builder. The work is framing, mechanical, finishing, and code compliance rather than structural surgery.
The catch: Fulton County requires permits for any finished basement, and the inspections cover egress, electrical, HVAC, and bathroom rough-in. We pull permits in-house. You don't deal with the county.
One: a 50-minute paid in-home consult. The founder walks the basement with you, measures the existing space, flags structural and code realities, and sketches options. $350, credited to your project on signing.
Two: a detailed estimate within 48 hours. Real numbers, not back-of-envelope.
Three: design phase. Layout, lighting, finishes, code compliance baked into the drawings before construction starts.
Four: build. Same team. Permits and finishes in-house.
Most basement finishes we run land between $80,000 and $250,000 depending on scope.
Lower end: open layout with one full bath, simple finishes, no kitchen.
Middle: full ADU with kitchenette, two-piece bath, dedicated entrance, upgraded finishes.
Higher end: home theater with acoustic treatment, custom millwork, full kitchen, two baths.
The first consult is where we figure out where your specific project sits in that range.
Greener Concepts Design + Build finishes basements across Alpharetta, Milton, Johns Creek, and Sandy Springs. We're based on Red Maple Forest Drive in Alpharetta. Most projects sit within 15 miles of that address.
500+ projects completed across North Atlanta. 11-time Best of Houzz Service award winner. Nearly 50 years of combined building experience.
Licensed and insured in Georgia. Georgia General Contractor License #RBQA008024.
See a finished basement ADU in our Hawthorne whole-home renovation.
Most basement finishes we run land between $80,000 and $250,000 depending on scope. Lower end: open layout with one full bath. Higher end: full ADU with kitchen and theater.
8-14 weeks for most basement projects, start to inspection. Larger ADU builds with kitchens can run 16-20 weeks.
Yes. Fulton County requires permits for any finished basement. Egress, electrical, HVAC, and bathroom rough-in get inspected. We pull permits in-house.
Yes, if the space has code-compliant egress: an emergency exit window of the right size. We assess egress in the first consult.
Yes. Alpharetta zoning allows accessory dwelling units in most residential zones. We handle the permitting and code compliance.
Both. About 30% of our basement work is basement-only. The other 70% is part of a whole-home project.
Usually yes. Cost-versus-value studies put basement finishing at 70 to 86 percent of cost returned at resale. A finished basement with ADU potential can return more in markets like North Fulton.
One year on all workmanship. Manufacturer warranties on materials and fixtures.
Book a 50-minute in-home consult. The founder walks the space, sketches options, and flags the structural realities. $350, credited to your project on signing.