Flood Zones: Duluth vs Snellville
How do flood zones rules compare between Duluth, GA and Snellville, GA?
Duluth and Snellville have similar restriction levels.
Duluth, GA
Gwinnett County
Duluth participates in NFIP; floodplain management per Chapter 38 of City Code. FEMA flood maps identify SFHAs along Chattahoochee tributaries (Suwanee Creek, Western Branch). Development in floodways restricted.
View full Duluth rules →Snellville, GA
Gwinnett County
Snellville participates in NFIP. Floodplain management via Chapter 42 of city code; FEMA FIRM panels effective 2008. Development in SFHA requires elevation certificate and floodplain permit.
View full Snellville rules →Key Facts Comparison
| Fact | Duluth | Snellville |
|---|---|---|
| NFIP | Participating community | Participating community |
| Freeboard | BFE + 2 feet required | 1 ft above BFE |
| Code | Duluth Code Ch. 38 | Chapter 42 |
| Maps | Gwinnett County GIS / FEMA | - |
| FIRM | - | Gwinnett County panels |
Highlighted rows indicate differences between cities.
Duluth FAQ
Does Duluth have major flood zones?
Limited SFHAs along Chattahoochee tributaries like Suwanee Creek. The Chattahoochee River itself is outside city limits. Check Gwinnett County GIS for your parcel.
How high must my new Duluth home be above the flood elevation?
Lowest floor elevation must be at or above Base Flood Elevation plus 2 feet of freeboard under Chapter 38.
What triggers full floodplain compliance on a remodel?
The substantial improvement rule — any remodel with a cost of 50% or more of market value triggers full code compliance.
Snellville FAQ
Do I need flood insurance in Snellville?
Required by federally-backed lenders if property is in SFHA (Zone A/AE). Check FEMA Flood Map Service Center using your address.
Can I build in a floodplain?
Yes with a floodplain development permit. Lowest floor must be 1 ft above BFE. Substantial improvements (>50% value) trigger full elevation.
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