Addition
- Definition/Description
- NFIP Requirement
- Other Applicable NFIP Regulations
- Guidance
- Related Keywords
- Special Topic Resources
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
- 59.1 - Definition
- 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 Zones, Nonresidential Buildings
- (c) (5) - Openings
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
- IS-9 Managing Floodplain Development Through The National Flood Insurance Program (NFIP) (Unit 8)
- Technical Bulletin 1, Openings in Foundation Walls for Buildings Located in Special Flood Hazard Areas (FIA-TB-1)
Related Keywords
Anchoring
Development
Elevation
Enclosure
Foundation
Lowest Floor
New Construction
Openings
Permit for Floodplain Development
Substantial Improvement
Special Topic Resources
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Lateral Addition - pp. 8-11 and 8-12
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Minor Rehabilitation - pp. 8-9
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Vertical Addition - pp. 8-13 and 8-14
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V Zone Addition - pp. 6-12
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Last Modified: Monday, 16-Apr-2007 20:27:30 EDT