3202.1 Encroachments Below Grade

Encroachments below grade shall comply with Sections 3202.1.1 through 3202.1.4.

Exterior wall and column footings may be constructed to project beyond the street line not more than 12 inches (305 mm), provided that the top of the footing is not less than 8 feet (2438 mm) below the ground or sidewalk level. Foundation walls required to support permitted projections may be constructed to project not more than the permitted projection beyond the street line.

In areas of special flood hazard or shaded X-Zones, continuous footings for the support and attachment of temporary, removable dry floodproofing barriers or shields may be constructed to project beyond the street line not more than 12 inches (305 mm) both at grade and below grade.

Vaults may be permitted in accordance with the New York City Charter and Chapter 19 of the Administrative Code. Such vaults shall comply with the provisions of this code and other applicable laws and rules.

Areaways shall be protected by grates, guards or other approved means, subject to approval by the Commissioner of the Department of Transportation.

Tunnels connecting buildings and projecting beyond street lines may be constructed subject to the approval of the Commissioner of the Department of Transportation. Such tunnels shall comply with the provisions of this code and other applicable laws and regulations.

Exterior foundation walls are permitted to be constructed with a ledge that projects beyond the street line not more than 4 inches (102 mm) to support sidewalk construction, provided that:

1. the top of the ledge is not more than 8 inches (203 mm) below the ground or sidewalk level; and
2. bottom of the ledge is not more than 24 inches (610 mm) below the ground or sidewalk level.