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Grant County, WA Environmental Rules: Flood Zones (2026)

Some Restrictions

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

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

Key Facts

Governing chapter: GCC 14.02, Flood Damage and Prevention
Administrator: Development Services Director
FIRM basis: Feb. 18, 2009 maps and revisions
Permit required for: structures, fill, manufactured homes
Civil fine: $500 per occurrence (GCC 1.32.140)
Variances: limited to half-acre infill lots

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 Grant County, WA.

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 Grant County, WA on the FEMA flood map

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

Summary

Any construction or development inside a mapped special flood hazard area in unincorporated Grant County needs a development permit under GCC Chapter 14.02 before work starts. The Development Services Director serves as floodplain administrator and reviews plans against the county's Flood Insurance Rate Maps before signing off on structures, fill, or manufactured homes.

These county ordinances apply to unincorporated areas of Grant County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

A development permit, processed in accordance with GCC chapter 25.04 of the UDC, shall be obtained prior to construction or development within any area of special flood hazard as established in this chapter. The permit shall be for all structures and manufactured homes, as set forth in the "definitions", and for all development including fill and other activities, also set forth in the "definitions".

View official code

Full Breakdown

16, applies to all areas of special flood hazard in unincorporated Grant County. The chapter incorporates the Federal Insurance Administration's Flood Insurance Study and Flood Insurance Rate Maps dated February 18, 2009, and later revisions, kept on file at the Grant County Development Services Department, 264 Division Ave W, Ephrata. 04. 140, must show the elevation of the lowest floor relative to mean sea level, any floodproofing certification from a registered engineer or architect, and, for floodway work, an engineering analysis proving no rise in the base flood elevation.

The Development Services Director acts as floodplain administrator, reviewing every application to confirm the site is reasonably safe from flooding and outside the floodway before granting a permit. Variances from these standards are, in the code's own words, meant to be rare, limited to small infill lots, and barred entirely where they would raise flood levels in a floodway.

Violations & Fines

Building or altering anything in a special flood hazard area without this permit is enforced under GCC 1.32: a code enforcement citation carries a $500 civil fine per occurrence, and repeat violations climb to $1,000 for a second offense and $2,000 for a third or later offense within 24 months. Willful or knowing violations are also chargeable as a misdemeanor under GCC 14.02.090(b).

Frequently Asked Questions

Do I need a permit to build in a Grant County flood zone?

Yes. GCC 14.02.130 requires a development permit before any construction, fill, or manufactured home placement within an area of special flood hazard shown on the county's Flood Insurance Rate Maps. Applications go through the floodplain administrator, the Development Services Director, under the review procedures of UDC Chapter 25.04, covering elevation, floodproofing, and floodway impacts.

What information does the permit application need?

Under GCC 14.02.140, applicants must submit the elevation of the lowest floor relative to mean sea level, any floodproofing elevation certified by a licensed engineer or architect, details on altering a watercourse, and, for floodway projects, engineering analysis proving no rise in the base flood elevation.

Can I get a variance from the flood rules?

Rarely. GCC 14.02.170 limits variances to small, already-surrounded infill lots of a half acre or less and bars any variance that would raise flood levels in a floodway. Recipients must be told in writing that building below base flood elevation raises flood insurance costs and risk to life and property.

What happens if I build without the permit?

The county can cite the violation as a civil infraction under GCC 1.32, with a $500 fine per occurrence, and willful violations can also be charged as a misdemeanor under GCC 14.02.090. The county may pursue abatement or any other lawful remedy in addition to the fine.

Sources & Official References

[1]Grant County Code of Ordinances (Municode)

Other rules in Grant County

Animal Ordinances: Chickens & LivestockSome Restrictions Parking Rules: RV & Boat ParkingSome Restrictions Stormwater ManagementSome Restrictions Flood Elevation RequirementsSome Restrictions Erosion ControlSome Restrictions Parking Rules: Loading ZonesSome Restrictions Fence Regulations: Material RestrictionsSignificant Restrictions Animal Ordinances: Veterinary Clinic ZoningSome Restrictions Animal Ordinances: Pet LimitsSome Restrictions

All Grant County rules

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