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Where a basement is considered a story above grade plane and the finished ground level adjacent to the basement wall is below the basement floor elevation for 25 percent or more of the perimeter, the floor and walls shall be dampproofed in accordance with Section 1805.2 and a foundation drain shall be installed in accordance with Section 1805.4.2. The foundation drain shall be installed around the portion of the perimeter where the basement floor is below ground level. The provisions of Sections 1803.5.4, 1805.3 and 1805.4.1 shall not apply in this case.

Related Code Sections

1805.1.1 Soils and Foundations, Story Above Grade Plane
Where a basement is considered a story above grade plane and the finished ground level adjacent to the basement wall is below the basement floor ...
1805.1.1 Soils and Foundations, Story Above Grade Plane
Where a basement is considered a story above grade plane and the finished ground level adjacent to the basement wall is below the basement floor ...
1205.2 Interior Environment, Yards
Yards shall be not less than 3 feet (914 mm) in width for buildings two stories or less above grade plane. For buildings more than two stories above ...
1205.2 Interior Environment, Yards
Yards shall be not less than 3 feet (914 mm) in width for buildings two stories or less above grade plane. For buildings more than two stories above ...
101.2 Scope and Administration, Scope
Exception: Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories above grade plane in height ...