Complete final grade surveys & certificates within 4 days
TIPS FOR YOUR DIY FINAL GRADE PROJECT
TIP 1: Obtain Rough Grade Approval from Builder
TIP 1: Obtain Rough Grade Approval from Builder
TIP 1: Obtain Rough Grade Approval from Builder
Obtaining rough grade approval and certificate from the Builder is the first step in the final grade process. This ensures the property is approved for final grade commencement
TIP 2: Interpret Plot Plan Correctly
TIP 1: Obtain Rough Grade Approval from Builder
TIP 1: Obtain Rough Grade Approval from Builder
It is crucial to locate high/low points and determine drainage pattern to correctly shape the lot as per approved grading design. Design elevations need to be correctly located to ensure final grade constructed within tolerance
TIP 3: Stakeout & Install String Lines
TIP 1: Obtain Rough Grade Approval from Builder
TIP 4: Sufficient Slopes Around Foundation Walls
This step ensures final grade is installed to design elevations and consistent sloping across the site (i.e. avoid low and high spots)
TIP 4: Sufficient Slopes Around Foundation Walls
TIP 4: Sufficient Slopes Around Foundation Walls
This is one of the most common deficiencies. Slopes away from foundation walls shall be minimum 5% in the first 2 meters for soft surfaces/landscaping and minimum 1% for hard/impermeable surfaces
TIP 5: Define Drainage Swales
TIP 5: Define Drainage Swales
Well-defined drainage swales ensure better water runoff. It is recommended to construct a clear V-shaped swale along the common property lines between the houses
TIP 6: Good Compaction
TIP 5: Define Drainage Swales
Good compaction is crucial in protecting final grades from erosion and damages. This also prevents future settlements and uneven surface
TIP 7: Obstructions to Drainage Paths
Drainage paths shall be clear of impediments such as fence, landscaping features, retaining wall, shed, and especially concrete walkways. Concrete walkways shall maintain minimum 15cm clearance from property line and/or swale centerline
TIP 8: Common Deficiencies
- Incomplete final grade beneath deck/steps
- Inconsistent slope along drainage swales (with high and low spots)
- Roof drainage system not connected to Storm Sewer service (Builder's responsibility)
- Missing retaining walls (for infill properties)
- Insufficient slope away from building walls
TIP 9: Other Good Practices
TIP 9: Other Good Practices
- Site shall be clean of debris, tools and weeds
- Gates to be unlocked
- Driveway shall be completed prior to
- Downspout extensions to be laid on the ground with splash pads in place
- Final grade to be continuously checked for damages during inspection wait time
- Topsoil to be minimum 5cm below top of window wells
- Additional Lot Grading Guidelines can be found on the City's website