Grading & Drainage: East Honolulu vs Mililani Mauka
How do grading & drainage rules compare between East Honolulu, HI and Mililani Mauka, HI?
East Honolulu and Mililani Mauka have similar restriction levels.
East Honolulu, HI
Honolulu County
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.
View full East Honolulu rules →Mililani Mauka, HI
Honolulu County
Mililani Mauka grading, grubbing, stockpiling, and drainage work is regulated under ROH Chapter 18A, which requires permits, bonds, and inspections for qualifying land-disturbing activity.
View full Mililani Mauka rules →Key Facts Comparison
| Fact | East Honolulu | Mililani Mauka |
|---|---|---|
| - | - |
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.
Mililani Mauka FAQ
Do I need a grading permit for a small Mililani Mauka yard terrace?
If the work meets Chapter 18A's volume, slope, or height thresholds, a grading permit is required along with any necessary erosion control plan.
What about a contractor stockpiling soil on my lot?
Stockpiling above the thresholds in Article 3 requires a permit under Chapter 18A, and failing to permit can lead to penalties under Sec. 18A-2.4A.
Compare other topics
See how East Honolulu and Mililani Mauka compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool