The engineering design level (or elevation) of the house on a lot in relation to the sidewalk, road, laneway and adjacent property. Grades also determine a number of other factors including the need for window wells and retaining walls, the design of steps and the profile of the lot after landscaping. Proper planning of Grades is essential to avoid surface water problems that could result in a damp basement, or water intrusion.
The orientation and location of your new home on its lot indicated on a scaled-down drawing of the lot. It shows the distance to the home from the front, back and side property lines, and positions the home in accordance with municipal bylaws for ‘set-backs’ from property lines and easements. The locations of any easements are indicated, along with details of ‘Grades’.