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🌍 Environmental Rules/Grading & Drainage

East Honolulu vs Pearl City

How do grading & drainage rules compare between East Honolulu, HI and Pearl City, HI?

East Honolulu and Pearl City have similar restriction levels.

East Honolulu, HI

Honolulu County

Heavy Restrictions

East Honolulu hillside lots in Mariner's Ridge, Kamilo Iki, and Kuliouou Valley require grading permits under ROH Chapter 18A when land disturbance exceeds permit thresholds.

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Pearl City, HI

Honolulu County

Heavy Restrictions

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 β†’

Key Facts Comparison

FactEast HonoluluPearl City
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Highlighted rows indicate differences between cities.

East Honolulu FAQ

Does a small retaining wall need a grading permit in Hawaii Kai?

Retaining walls and associated excavation typically require grading and building permits when they exceed minor thresholds in Chapter 18A, so confirm with the Department of Planning and Permitting before starting.

What happens if I grade without a permit?

Sec. 18A-2.4A imposes penalties for grading without a permit, and enforcement may include stop-work orders, restoration requirements, and fines.

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.

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