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.