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Memphis, TN Environmental Rules: Flood Zones (2026)

Some Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

FEMA flood zone rules in Memphis, TN, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.

Key Facts

Governing provision: UDC § 8.8.3, Floodplain Overlay District
Applies to: City of Memphis and unincorporated Shelby County
Permit required: Before any development activity in flood hazard area
Administrator: City Engineer (Memphis) or County Engineer (county)
Flood map: FIRM Community Panel No. 47157C
Penalty: Up to $50 fine per day of violation

FEMA Flood Zone Lookup

FEMA assigns every parcel in the U.S. a flood-hazard designation on its Flood Insurance Rate Maps (FIRMs). Zones starting with A or V are high-risk Special Flood Hazard Areas where federally backed mortgages require NFIP flood insurance. Zone X indicates moderate-to-minimal risk, where insurance is optional but often recommended. Your specific zone determines insurance cost, build elevation, and permit requirements in Memphis, TN.

Zone	What it means	NFIP required?
A	High-risk flood area; 1% annual chance flood, no detailed analysis.	Yes
AE	High-risk; same as A but with established Base Flood Elevations.	Yes
AH	High-risk shallow flooding (1-3 ft), usually ponding.	Yes
AO	High-risk shallow flooding (1-3 ft) with sheet flow on sloping terrain.	Yes
V	High-risk coastal zone subject to wave action (no BFE).	Yes
VE	High-risk coastal zone with wave action and established BFEs.	Yes
X (shaded)	Moderate risk; between the 1% and 0.2% annual chance flood.	Recommended
X	Minimal risk; outside the 0.2% annual chance floodplain.	No

Look up Memphis, TN on the FEMA flood map

FEMA maps update periodically; verify zone before buying flood insurance or building.

Summary

Any development within a Special Flood Hazard Area in Memphis or unincorporated Shelby County requires a development permit before work begins, under the joint Unified Development Code. The City Engineer administers the rule inside Memphis; the County Engineer administers it in the unincorporated county. Violators face a $50 fine per day of noncompliance.

A. Application This Chapter shall apply to all areas within the incorporated area with the City of Memphis and the unincorporated areas of Shelby County. ...
C. Requirement for Development Permit A development permit shall be required in conformity with this Chapter prior to the commencement of any development activities.
D. Compliance No land, structure or use shall hereafter be located, extended, converted or structurally altered without full compliance with the terms of this Chapter and other applicable regulations.

View official code

Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.

Full Breakdown

8 of the Memphis and Shelby County Unified Development Code establishes the Floodplain Overlay District (-FP) to reduce flood losses across areas subject to inundation. A, the chapter "shall apply to all areas within the incorporated area with the City of Memphis and the unincorporated areas of Shelby County," making it a genuinely joint rule that binds both governments rather than the city alone. B. C requires a development permit "in conformity with this Chapter prior to the commencement of any development activities" anywhere in the mapped hazard area, covering new construction, substantial improvement, filling, grading, dredging and other land-disturbing work.

D bars locating, extending, converting or structurally altering any land, structure or use without full compliance. E directs that the more restrictive standard controls. A: the City Engineer or a delegate administers the rule inside Memphis, while the County Engineer or a delegate administers it in unincorporated Shelby County. B.

Violations & Fines

Sub-Section 8.8.3.H makes violating the Floodplain Overlay District chapter, or failing to comply with any permit condition or variance safeguard, punishable by a fine of not more than $50.00, with each day the violation continues counted as a separate offense. The Administrator can also issue a stop-work order for uncorrected elevation certification deficiencies, and the City or County may pursue other lawful enforcement action.

Frequently Asked Questions

Do I need a permit to build in a Memphis floodplain?

Yes. Sub-Section 8.8.3.C of the Unified Development Code requires a development permit before any construction, fill, grading or other development activity begins in a mapped Special Flood Hazard Area, whether the property sits inside Memphis or in unincorporated Shelby County.

Who enforces the floodplain rules in Memphis?

The City Engineer or a designated delegate administers the Floodplain Overlay District inside Memphis city limits; the Shelby County Engineer handles the same duties for unincorporated county parcels, per Sub-Section 8.8.4.A.

What happens if I build in the floodplain without a permit?

Sub-Section 8.8.3.H sets a fine of up to $50.00 for violating the chapter, with each day of continued noncompliance treated as a separate offense, and the Administrator can add a stop-work order.

What flood map does Memphis use to define the hazard area?

Sub-Section 8.8.3.B adopts the FEMA Flood Insurance Study and Flood Insurance Rate Map for Community Panel Number 47157C, covering both the City of Memphis and Shelby County, as the official basis for the Special Flood Hazard Area boundaries.

Sources & Official References

[1]Memphis and Shelby County Unified Development Code, Article 8.8

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