Retaining Walls: Dearborn vs Westland
How do retaining walls rules compare between Dearborn, MI and Westland, MI?
Dearborn and Westland have similar restriction levels.
Dearborn, MI
Wayne County
Retaining walls in Dearborn under 4 feet tall measured from bottom of footing require no permit. Walls 4 feet or taller require a building permit with engineered plans per Michigan Residential Code.
View full Dearborn rules →Westland, MI
Wayne County
Retaining walls over 4 feet in Westland require a building permit with engineering drawings. Walls under 4 feet may still need permits depending on location and grade. Michigan Residential Code governs.
View full Westland rules →Key Facts Comparison
| Fact | Dearborn | Westland |
|---|---|---|
| Permit threshold | 4 feet or with surcharge | - |
| Engineer required | Over 4 feet | - |
| Code | Michigan Residential Code | - |
| Flood zone review | Required near Rouge River | - |
| Fence-on-wall | Combined height counts | - |
| Permit Threshold | - | Over 4 feet requires permit |
| Engineering | - | Licensed PE stamp required |
| Surcharge Walls | - | Permit even under 4 feet |
| Frost Depth | - | Michigan code requirements |
Highlighted rows indicate differences between cities.
Dearborn FAQ
Do I need a permit for a 3-foot garden wall?
Not if it does not support a surcharge like a driveway. Setbacks still apply.
Can I build it myself?
Homeowners can for their own residence. Walls over 4 feet need engineered plans regardless of who builds them.
Westland FAQ
Do I need a permit for a 3-foot garden wall?
Not if purely decorative and no surcharge, but confirm with the Building Department based on your specific site.
Can I DIY a retaining wall?
Walls under 4 feet without surcharge may be DIY. Larger or engineered walls typically require professional design and inspection.
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