Multi-Family Lot Grading

There are 6 different lot types for multi-family. The diagrams below illustrate the basic grading requirements for each.

Lot Type A

Rear to front surface drainage, 2-3% overall slope.

Lot Type A Diagram
Grading Details

Lot Type B

Rear to front surface drainage, 3-6% overall slope.

Lot Type B Diagram
Grading Details

Lot Type C

Rear to front surface drainage, more than 6% overall slope.

Lot Type C Diagram
Grading Details

Lot Type D

Standard split surface drainage, 1.5% overall slope.

Lot Type D Diagram
Grading Details

Lot Type F

Front to rear surface drainage, 2-3% overall slope.

Lot Type F Diagram
Grading Details

Lot Type W

Split surface drainage for walkout basement.

Lot Type W Diagram
Grading Details

Commercial Lot Grading

There are 2 different lot types for commercial. The diagrams below illustrate the basic grading requirements for each.

Lot Type A

For a single building.

Lot Type A Diagram
Grading Details

Lot Type B

For two or more buildings.

Lot Type B Diagram
Grading Details