Pearl City vs Waipahu
How do grading & drainage rules compare between Pearl City, HI and Waipahu, HI?
Pearl City and Waipahu have similar restriction levels.
Pearl City, HI
Honolulu County
Pearl City hillside properties, including Pacific Palisades and Waiawa area lots, require grading permits under ROH Chapter 18A when land disturbance exceeds permit thresholds.
View full Pearl City rules →Waipahu, HI
Honolulu County
Waipahu land disturbing activities require grading permits under ROH Chapter 18A, which governs permits, bonds, inspections, and drainage review for all qualifying work.
View full Waipahu rules →Key Facts Comparison
| Fact | Pearl City | Waipahu |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Pearl City FAQ
Does a new driveway in Pearl City need a grading permit?
Driveway grading that exceeds quantity or slope thresholds in Chapter 18A requires a grading permit. Confirm with the Department of Planning and Permitting before starting work.
What is the penalty for grading without a permit?
Sec. 18A-2.4A imposes penalties for unpermitted grading, and enforcement can include stop-work orders, restoration requirements, and continuing violation fines.
Waipahu FAQ
Does adding fill for a small Waipahu addition need a permit?
Yes, if the fill or grading exceeds thresholds in Chapter 18A. Even modest grading associated with additions typically requires a grading permit, so confirm with permitting before starting.
Can my neighbor's runoff come onto my lot?
Grading permit drainage review is intended to prevent concentrated runoff onto neighbors. If your neighbor's grading changed drainage, document it and contact the Department of Planning and Permitting.
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