Fulton County Inland wind zone

Barndominium Builders in South Fulton, GA

South Fulton is the one metro-Atlanta city on this list that still has agricultural zoning inside its own boundary. Its AG-1 district allows a site-built single-family home on one acre by right, alongside crop production, livestock and stables, and the city runs its own plan review and inspections rather than sending you to the county. The catch is Table 4-1: a single-storey house in AG-1 must carry 1,800 square feet of heated space on the ground floor, which rules out the small barn-style build many buyers arrive with.

South Fulton at a glance

County
Fulton County
Population
113,789
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Building conditions in South Fulton

What actually changes from one Georgia jurisdiction to the next: who issues the permit, what wind speed the structure has to be engineered to, and what the ground is like. These are the numbers your drawings have to satisfy.

Build conditions for South Fulton, Fulton County: design wind speed Confirmed per parcel, inland. BUILD CONDITIONS SOUTH FULTON, GAFulton CountyINLAND WIND ZONEOUTSIDE WBDR DESIGN WIND SPEED Confirmed per parcelMetro Atlanta is commonly engineered to 115 mph, but South Fulton fills in its own Table R301.2and has not published the figure. We confirm the adopted number with the city before design.ZONING · AG-1 (AGRICULTURAL DISTRICT)1 acre with paved-road frontage; 3 acres on an u…A site-built or modular single-family detached home is allowed by…WHO ISSUES THE PERMITCity of South Fulton Community Development & Reg…Development Services division; permits and inspections through the…
Build conditions for South Fulton, drawn from the sourced facts on this page. Every figure above is cited in the quick-facts panel below, with its source and vintage.
Who issues the permit
The City of South Fulton itself. Community Development & Regulatory Affairs, Development Services division, at the Service Center on Fulton Industrial Boulevard. Inspections requested before 4 p.m. can be scheduled for the next business day.

City of South Fulton, Building Permits page, cityofsouthfultonga.gov, fetched 31 Aug 2026

Codes enforced
2024 International Residential, Building, Mechanical, Fuel Gas, Plumbing and Swimming Pool and Spa Codes with Georgia Amendments, effective 1 January 2026, plus the 2026 Georgia Amendments to the 2023 National Electrical Code.

City of South Fulton, Building Permits page, cityofsouthfultonga.gov, fetched 31 Aug 2026; City Code Title 3, Ch. 1, Sec. 3-1001

Agricultural zoning inside the city
AG-1 Agricultural District is the city's only agricultural district, and a single-family detached site-built or modular home is allowed in it by right, alongside crop production, animal production and riding stables.

City Code Appendix C, Zoning, Sec. 202.02, Sec. 206.03 and Table 2-4 (Ord. No. 2020-039, adopted 8 Dec 2020), via Municode, fetched 31 Aug 2026

AG-1 minimum lot size
1 acre where the lot fronts a paved road, 3 acres where it fronts an unpaved road. Setbacks are 60 ft front, 25 ft to an interior side line, 50 ft rear, with a 100 ft minimum lot width and a 40 ft height limit.

City Code Appendix C, Zoning, Table 4-1 Area Regulations for Lots and Principal Buildings, via Municode, fetched 31 Aug 2026

AG-1 minimum heated floor area
1,800 sq ft on the ground floor for a single-storey house; 2,000 sq ft total with 1,200 sq ft on the ground floor for two storeys. Unincorporated Fulton County's AG-1 sets no minimum at all, so this is a South Fulton rule specifically.

City Code Appendix C, Table 4-1, via Municode; compared against Zoning Resolution of Fulton County, Art. V Sec. 5.1, fultoncountyga.gov. Both fetched 31 Aug 2026

How much land is left
84.8 square miles of land area. The city's 2026 Comprehensive Plan release describes South Fulton as spanning over 90 square miles and holding the largest expanse of undeveloped land on the southern edge of metro Atlanta.

U.S. Census Bureau profile, South Fulton city, Georgia; City of South Fulton news release, 29 Apr 2026. Both fetched 31 Aug 2026

Also worth knowing before you build in South Fulton

Design wind speed
115 mph ultimate design wind speed, Risk Category II, is the figure used across metro Atlanta. Georgia jurisdictions fill in their own Table R301.2, and the city has not published its sheet, so we confirm the adopted number with the building official for your parcel.

Regional ASCE 7 / IRC Figure R301.2 value for inland Georgia; no South Fulton adopted table published as at 31 Aug 2026

Exterior finish restriction
Vinyl siding, aluminium siding and synthetic stucco are prohibited on all residential buildings in the city. Steel is not named in the prohibition, which is why the exact panel specification is worth confirming with the city before it is ordered.

City Code Appendix C, Zoning, Sec. 406.01(a), via Municode, fetched 31 Aug 2026

Well and septic minimum lot
A lot using both a well and a septic tank cannot be less than one acre, and any lot on a well or a septic drain field must meet whichever is larger: the Fulton County Board of Health requirement or the zoning district minimum.

City Code Appendix C, Zoning, Sec. 403.02(a)(4) and (a)(5), via Municode, fetched 31 Aug 2026

Chattahoochee River corridor
Any property within 2,000 feet of the Chattahoochee River needs Atlanta Regional Commission river corridor approval before a building permit is issued. The river forms much of South Fulton's western boundary, so this catches part of the city's rural edge.

City of South Fulton Building Permit Application and Site Plan Checklist, cityofsouthfultonga.gov, fetched 31 Aug 2026

Tree protection on a wooded lot
A minimum of 20 tree units per acre must be left standing after construction, tree fencing is required from the start of clearing, and a specimen tree in the building footprint triggers an on-site meeting with the City Arborist.

City of South Fulton Building Permit Application and Site Plan Checklist, cityofsouthfultonga.gov, fetched 31 Aug 2026

Land market
172 land listings in and around South Fulton, averaging $90,773 per acre; 119 of them undeveloped, averaging $114,624 per acre. Only five listings sat in the 10 to 20 acre band.

LandSearch and Land.com listing summaries for South Fulton, GA, fetched 31 Aug 2026

Below the slab

The expensive surprises are in the ground, not the building

Most of Fulton County rates poorly for dwellings in the soil survey, and the reason is water sitting close to the surface rather than weak ground. That makes the pad elevation and the drainage plan the two line items most likely to move your budget. We price the dirt before we price the building.

What we build in South Fulton

All nine services are available across Fulton County. The three below are where a project on a Fulton County parcel usually starts — the permit, the drawings, and the build itself. What a build costs depends far more on the parcel than on square footage, so we price against your land rather than publishing a rate card.

Permitting & Engineering

Sealed structural engineering and the permit that depends on it, from submittal through final inspection.

Custom Plans

Barndominium floor plans drawn to your land, your family, and the 2024 Georgia residential code.

Turnkey Builds

Start to finish barndominium construction: we handle permits, slab, shell, and full interior finish.

All nine services we build in Fulton County

What a build looks like

Three stages every South Fulton project passes through, from a raw parcel to a finished home. Site work first, because that is where the budget is decided.

Aerial view of an undeveloped rural Georgia lot with cleared grass, pine treeline and a red clay access track.
Stage one

The parcel

Zoning, setbacks, flood zone and utility access get checked before anything is drawn.

An excavator grading a compacted building pad on a cleared lot, with survey stakes and a drainage swale visible.
Stage two

Pad and permit

Clearing, grading and a compacted pad, while the submittal works through Fulton County.

A finished barndominium at dusk with warm interior lighting glowing through its large windows.
Stage three

Frame to finish

Shell erected and dried in, then systems, insulation and interior finish through to CO.

Those are the rules for Fulton County. Tell us what you want to build and we will draw it to them.

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Where we build around South Fulton

Fulton County and the rural land around it. The buildable acreage for a project this size usually sits outside the city limits, which is frequently what changes who issues your permit.

Our South Fulton service area, covering Fulton County and the surrounding rural acreage. We build across this area from our office in Macon, GA — this map marks the territory we serve, not a branch location.

Keep reading

The questions that usually come next once you know what South Fulton allows.

Barndominium Cost Guide

Sourced per-square-foot ranges by tier and by size, with a calculator built on the same figures.

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Is It Legal in Georgia?

Classification, zoning, the HOA gate, and the agricultural exemption that does not cover a home.

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How Long Does It Take?

Census build-duration data, and the Georgia statute setting the permit clock.

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Sources for this page

The primary documents behind the South Fulton figures above. We would rather you checked them than took our word for it.

Nearby areas we build in

Others we cover in this part of Georgia. The permitting authority, the adopted design criteria and the zoning can all differ from one to the next.

Atlanta

Fulton County
Coweta County

Coweta County
Carroll County

Carroll County

Building in South Fulton: common questions

6 questions we get asked most often about building in South Fulton. If yours is not on the list, ask it directly.

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Can I actually build a barndominium on acreage inside South Fulton, or do I have to go out to a county?
You can build inside the city. South Fulton kept an agricultural district when it wrote its own zoning ordinance in December 2020, and AG-1 allows a site-built single-family detached home by right on one acre with paved-road frontage, three acres if the frontage is on an unpaved road. That is unusual for a metro-Atlanta city of this size. The practical limit is supply rather than permission: as of late August 2026 only five parcels in the whole 10 to 20 acre band were on the market inside the city. If you want twenty acres at exurb prices, Coweta and Carroll are the honest answer. If you want one to ten acres and a twenty-minute drive to the airport, South Fulton is a real option.
Is there a minimum house size in AG-1?
Yes, and it is the rule that catches most barndominium buyers here. Table 4-1 of the zoning ordinance requires 1,800 square feet of heated space on the ground floor for a single-storey house in AG-1. Go to two storeys and the requirement is 2,000 square feet total with 1,200 of it on the ground floor. Unincorporated Fulton County's AG-1 has no minimum heated floor area at all, so a plan that works on one side of the city line may not work on the other. If your heart is set on a 1,400 square foot single-storey build, that needs a variance, and we would rather tell you that before you buy the lot.
Does the city inspect, or does Fulton County do it?
The city. South Fulton incorporated in 2017 and now runs its own building department: Community Development & Regulatory Affairs, Development Services division, working from the Service Center on Fulton Industrial Boulevard. Plan review, permits and field inspections are all city functions, scheduled through the city's online portal, and an inspection requested before 4 p.m. can be assigned the next business day. The one thing that stays with the county is the septic permit, which goes through the Fulton County Board of Health.
Our parcel is zoned agricultural. Doesn't that make it exempt from the building code?
No. Georgia's farm building exemption is written narrowly: the structure has to be designed to Natural Resources Conservation Service standards, used for manure storage, animal mortality composting or winter feeding, and expressly not used for residential purposes. A house is a residence no matter what the parcel is zoned or how the county assesses it, so the exemption cannot reach it. On top of that, South Fulton enforces the code locally, so the question is academic here: you will be pulling a permit and taking inspections either way.
Can the outside be metal?
Almost certainly, but the specification matters. Section 406.01 of the zoning ordinance prohibits vinyl siding, aluminium siding and synthetic stucco on residential buildings across the whole city. Steel is not named in that prohibition. Barndominium exterior packages are often quoted simply as metal siding without the alloy being pinned down, so we get the panel spec in writing and confirm it with the city before anything is ordered. It is a cheap phone call and an expensive mistake.
What else slows a permit down on a rural South Fulton lot?
Three things, all of them site conditions rather than paperwork. Trees: the city requires 20 tree units per acre left standing after construction, tree fencing from the moment clearing starts, and a meeting with the City Arborist if a specimen tree sits in your footprint. Water: if you are within 2,000 feet of the Chattahoochee, which forms much of the city's western edge, you need Atlanta Regional Commission river corridor approval, and anything in a flood hazard area has to sit at least three feet above the flood elevation with a certificate holding your certificate of occupancy. Septic: the Fulton County Board of Health approval has to be in hand before the building permit issues, and the perc result can push your minimum lot area above the one-acre zoning floor. We sequence all three at the front of the project rather than discovering them at inspection.

Building in South Fulton?

Start with the plan. Tell us what you want to build and we will draw it, then confirm what Fulton County will actually let you put on the parcel and what wind load it has to meet. That conversation costs nothing.

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