U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.

Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.

The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Garages

Attached Garages A garage attached to a residential structure or in an enclosed area below an elevated building may have the garage floor slab below the Base Flood Elevation (BFE). Because such a garage is an enclosed area below the BFE, openings are required either in the exterior walls of the garage or in the garage doors themselves.

Below-grade Parking Garages Below grade parking garages are only allowed in non-residential buildings in Zones A1-30, AE, AH, and AO and must be dry floodproofed. The construction of below grade parking garages is prohibited beneath residential buildings. Below-grade parking garages are prohibited beneath all residential and non-residential buildings in V Zones.

Detached Garages Small detached garages for residential uses may qualify as Accessory Structures under the NFIP.

National Flood Insurance Program Requirements

  • 60.3 - Flood plain management criteria for flood-prone areas
    • (a) (1) - Development Permit
    • (a) (3) - Reasonably Safe From Flooding
    • (c) (2) - A Zone Residential Buildings
    • (c) (3) - A Zone Nonresidential Buildings
    • (c) (4) - Floodproofing Certification
    • (c) (5) - Openings
Glossary Section
NFIP - National Flood Insurance Program
Last updated Jul 8, 2020