Flood Zones: Lawrenceville vs Suwanee
How do flood zones rules compare between Lawrenceville, GA and Suwanee, GA?
Lawrenceville and Suwanee have similar restriction levels.
Lawrenceville, GA
Gwinnett County
Lawrenceville enforces FEMA NFIP floodplain standards. Development in Special Flood Hazard Areas requires a floodplain development permit; Gwinnett County FIRMs adopted by reference.
View full Lawrenceville rules →Suwanee, GA
Gwinnett County
Suwanee enforces FEMA flood zones per Code of Ordinances Chapter 38 (Flood Damage Prevention). City participates in NFIP. Development in SFHA requires floodplain permit, elevation certificate, and finished floor 3 feet above BFE (freeboard).
View full Suwanee rules →Key Facts Comparison
| Fact | Lawrenceville | Suwanee |
|---|---|---|
| Program | NFIP via Gwinnett FIRMs | - |
| Freeboard | 3 ft above BFE | 3 ft above BFE |
| Permit | Required in SFHA | - |
| Substantial Rule | 50% of value | - |
| Fine | Up to $1,000/day | - |
| Code | - | Ch. 38 Flood Damage |
| NFIP | - | CID 130322 |
| Maps | - | FEMA FIRM Gwinnett |
Highlighted rows indicate differences between cities.
Lawrenceville FAQ
Do I need flood insurance in Lawrenceville?
If your property is in a FEMA A or AE zone and you have a federally-backed mortgage, yes. Check the Gwinnett County FIRM via FEMA's Map Service Center.
How high must new construction be above the base flood elevation?
Lawrenceville requires the lowest floor to sit at least 3 ft above Base Flood Elevation — Gwinnett County's freeboard standard, which exceeds the NFIP 1-ft minimum.
What's the penalty for building in the floodplain without a permit?
Violations of Ch. 58 Flood Damage Prevention can run up to $1,000 per day, plus orders to elevate or remove non-compliant structures.
Suwanee FAQ
Is Suwanee in a flood zone?
Portions along Suwanee Creek, Level Creek, and tributaries are in FEMA Zone AE. Check FEMA Map Service Center by address.
How much freeboard does Suwanee require?
3 feet above Base Flood Elevation per Chapter 38 — stricter than FEMA's 1-foot minimum.
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