Addition

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Definition/Description

An addition is an improvement that increase the square footage of a structures. These include lateral additions added to the side or rear of a structure, vertical additions added on top of a structure, and enclosures added underneath a structure. NFIP regulations for new construction apply to an addition that is considered to be a substantial improvement to a structure. Some States and communities require that all additions, regardless of their size, meet those requirements.

NFIP Requirement

Other Applicable NFIP Regulations

  •    60.3 - Flood plain management criteria for flood-prone areas
    •    (b) (4) - Available Data
    •    (b) (5) - Elevation Certificate
    •    (c) (4) - Floodproofing Certification
    •    (c) (7) - Zone AO Residential Buildings
    •    (c) (8) - Zone AO Nonresidential Buildings
    •    (c) (10) - Cumulative Effects of Development
    •    (d) (3) - Floodway Encroachment
    •    (e) (4) - V Zone Structures

Guidance

Related Keywords

Anchoring
Development
Elevation
Enclosure
Foundation
Lowest Floor
New Construction
Openings
Permit for Floodplain Development
Substantial Improvement

Special Topic Resources

Last Updated: 
07/24/2014 - 16:00
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