Restore and Regrade Landscaping
Construction equipment has compacted your soil, destroyed your grass, and disrupted drainage patterns. Proper regrading protects your foundation from water damage, while landscaping restoration completes your addition's curb appeal.
Quick Summary
Time needed
2-5 days
Cost
$2,000-$10,000
Professional help
Landscaper recommended
Why This Step Matters
Poor drainage is the #1 cause of foundation problems in homes. Water pooling near your foundation leads to basement leaks, foundation cracks, and structural settling. After construction, your yard's natural drainage has been completely disrupted—this is your opportunity to fix it properly.
Critical Requirement
Ground must slope away from the foundation at least 6 inches over the first 10 feet. This is code in most jurisdictions and essential for foundation health.
The 6-in-10 Grading Rule
The minimum acceptable grade is a 6-inch drop over 10 feet from your foundation. This creates enough slope to direct water away during normal rainfall.
How to Check Your Grade
- 1.Drive a stake at the foundation wall
- 2.Drive another stake 10 feet away from the house
- 3.Tie a level string between them at ground level on the house stake
- 4.Measure from string to ground at the far stake—should be 6" or more
Watch for Settling
Backfilled soil around the new foundation will settle 10-20% over the first year. Grade slightly steeper than required and plan to add soil as needed.
Landscaping Restoration Steps
Remove Construction Debris
Before any grading, thoroughly clean the yard of construction waste. This includes concrete chunks, nails, wood scraps, and insulation pieces.
- • Rake and remove all visible debris
- • Use a magnet roller to collect nails and screws
- • Check for buried debris before bringing in topsoil
- • Dispose of construction waste properly (not mixed with yard waste)
Decompact the Soil
Heavy equipment has compacted your soil, preventing water absorption and root growth. This must be addressed before adding new grass or plants.
- • Rent a core aerator for the entire affected area
- • Till severely compacted areas 4-6 inches deep
- • Add organic matter (compost) to improve soil structure
- • Allow soil to settle for 1-2 weeks before final grading
Pro tip: Don't skip soil decompaction. Grass won't establish healthy roots in compacted soil, and you'll end up with patchy, struggling lawn that needs replacement.
Establish Proper Grade
Using fill dirt and topsoil, create the proper slope away from all foundation walls—both the new addition and existing house.
- Fill dirt: Use for bulk grade changes (under topsoil)
- Topsoil: 4-6 inches on top for planting
- Check all sides: Water shouldn't collect anywhere near foundation
Address Drainage Issues
If grading alone won't solve water problems, install drainage solutions.
- • French drains: Collect and redirect subsurface water ($1,000-$4,000)
- • Channel drains: For patio/driveway runoff ($500-$1,500)
- • Downspout extensions: Route water at least 6 feet from foundation ($50-$200)
- • Dry wells: Collect excess water in problem areas ($500-$2,000)
Install New Lawn
Choose between seeding and sodding based on your timeline and budget.
Seeding
- • Cost: $0.10-$0.30/sq ft
- • Establishment: 6-12 weeks
- • Best for: Large areas, budget-conscious
- • Timing: Spring or fall only
Sodding
- • Cost: $1.50-$3.00/sq ft
- • Establishment: 2-3 weeks
- • Best for: Quick results, erosion control
- • Timing: Any season except winter
Restore Planting Beds and Features
Rebuild any landscaping features that were removed or damaged during construction.
- • Reinstall removed plants (if stored properly)
- • Add foundation plantings to integrate the addition
- • Restore mulch beds with 2-3 inches of fresh mulch
- • Repair irrigation systems and check coverage
- • Reinstall outdoor lighting and adjust for new structure
Typical Landscaping Restoration Costs
| Item | DIY Cost | Professional Cost |
|---|---|---|
| Grading (per 1,000 sq ft) | $200-$400 | $500-$1,000 |
| Topsoil delivery (10 yards) | $300-$500 | $500-$800 |
| Sod (per 1,000 sq ft) | $500-$800 | $1,500-$3,000 |
| Seed + straw (per 1,000 sq ft) | $100-$200 | $300-$500 |
| Foundation plantings | $300-$800 | $800-$2,000 |
| French drain (per linear ft) | $10-$20 | $30-$50 |
Total restoration typically runs $2,000-$5,000 for DIY or $4,000-$10,000 professionally.
When to Complete Landscaping
Grading: ASAP
Complete rough grading immediately after construction ends to prevent water damage. Proper drainage can't wait for ideal planting weather.
Seeding: Spring or Fall
Grass seed needs moderate temperatures (60-75°F) and consistent moisture. If construction ends in summer, use temporary erosion control until fall.
Sodding: Most Seasons
Sod can be installed spring through fall, avoiding extreme heat or frost. Summer sod needs heavy watering for the first 2 weeks.
Planting: Spring or Fall
Trees, shrubs, and perennials establish best when planted in cooler seasons. Avoid planting in summer heat or winter dormancy.
Frequently Asked Questions
Should the contractor handle landscaping restoration?
Your general contractor is typically responsible for rough grading to proper drainage. Finish landscaping (sod, plants, etc.) is usually the homeowner's responsibility unless specifically included in the contract. Review your agreement carefully.
How long should I wait for soil to settle before final landscaping?
Backfilled soil around foundations can settle 10-20% over the first year. For seeding or sodding, wait at least 2-4 weeks for initial settling, but plan to add soil as needed over the following months.
What if I can't achieve proper grade due to lot constraints?
If natural grading isn't possible, you'll need engineered drainage solutions: French drains, swales, or even a sump pump system. Consult a drainage specialist— the cost of proper drainage is far less than foundation repair.
Can I use the same landscaper who did my original yard?
Yes, and this is often ideal. They know your existing plants, irrigation layout, and design aesthetic. They may also have photos of the original landscaping to help match the restoration.
Ready for the Next Step?
With your landscaping restored and grading complete, you're ready for the final inspection. The building inspector will verify that all work meets code before issuing your Certificate of Occupancy.