Elizabeth and Union County municipalities require building permits for retaining walls over 4 ft (measured from bottom of footing to top of wall) per N.J.A.C. 5:23. Engineered plans required for walls over 4 ft or with surcharge.
Under the NJ Uniform Construction Code (N.J.A.C. 5:23-2.14), retaining walls 4 feet or taller measured from the bottom of the footing to the top of the wall require a building permit. Elizabeth Construction Code Office requires PE-stamped engineered plans for walls exceeding 4 ft, walls supporting surcharge loads (driveways, structures, slopes), or walls in flood hazard areas. Drainage behind the wall (weep holes, perforated drain, gravel backfill) must be specified. Setbacks from property lines follow local zoning — typically 0–3 ft but may trigger neighbor notification requirements. Tiered wall systems where each tier is under 4 ft but combined height exceeds 4 ft require engineering review if the horizontal separation is less than 2× the upper tier height.
Unpermitted walls: stop-work order, PE review retroactively required. Fines $500–$2,000 per N.J.A.C. 5:23-2.31. Collapse causing damage: civil liability plus demolition order.
Plainfield, NJ
Plainfield's animal ordinance (Ch. 5) prohibits permitting any dog or animal to annoy or injure any person or animal, or to run at large. Dogs must be on a l...
Plainfield, NJ
Plainfield prohibits construction noise on Sundays entirely and weekdays between 6:00 p.m. and 7:00 a.m. within 1,000 feet of any dwelling or business. Emerg...
Plainfield, NJ
Plainfield's noise ordinance (Ch. 5, Offenses Against Public Peace and Order) prohibits unreasonable noise that disturbs the peace. NJDEP statewide limits of...
Plainfield, NJ
Plainfield's zoning code (Ch. 17) regulates vehicle storage in residential zones. Off-street parking lots may not be used as thoroughfares. Contact the Zonin...
Plainfield, NJ
Plainfield requires zoning permits for driveways under Ch. 17. Impervious coverage subject to stormwater management requirements. Stormwater shall not be dis...
Plainfield, NJ
Plainfield regulates parking under Ch. 7 (Vehicles and Traffic). City-owned downtown lots prohibit parking 2:00 a.m.–6:00 a.m. Street parking subject to post...
See how Plainfield's retaining walls rules stack up against other locations.
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