Garfield vs Mahwah
How do retaining walls rules compare between Garfield, NJ and Mahwah, NJ?
Garfield and Mahwah have similar restriction levels.
Garfield, NJ
Bergen County
Bergen County does not directly regulate retaining walls. Municipal building departments enforce New Jersey's Uniform Construction Code, requiring permits for retaining walls typically over 4 feet tall and engineered drawings for taller structures.
View full Garfield rules →Mahwah, NJ
Bergen County
Mahwah caps accessory retaining walls behind the front facade at 6 feet and requires construction permits with engineering for taller residential walls.
View full Mahwah rules →Key Facts Comparison
| Fact | Garfield | Mahwah |
|---|---|---|
| Permit Threshold | Over 4 feet tall | - |
| Governing Code | N.J.A.C. 5:23 | - |
| Engineering Required | Walls over 4 feet | - |
| Permit Authority | Local municipality | - |
| County Review | County roads only | - |
| Accessory wall max | - | 6 feet behind facade |
| Residential permit threshold | - | Over 4 feet |
| Residential fee | - | $75 over 4 feet |
| Commercial fee | - | $200 over 3 feet |
| Engineering required | - | Walls over 4 feet |
Highlighted rows indicate differences between cities.
Garfield FAQ
Do I need a permit for a small retaining wall?
Walls under 4 feet typically need no state permit, but some Bergen municipalities require permits for any wall. Check your local building department first.
Who designs retaining walls over 4 feet?
A licensed New Jersey professional engineer must seal plans for walls over 4 feet or those supporting surcharge loads, per UCC requirements.
Mahwah FAQ
When do I need engineered plans for a retaining wall in Mahwah?
Engineered drawings are required for residential retaining walls over 4 feet measured from the bottom of the footing to the top, and for any wall supporting a surcharge load.
Do small landscape walls under 4 feet need any permit?
Walls under 4 feet near property lines typically still require a zoning or sitework permit from Mahwah, even though full construction permits may not apply.
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