• Skip to main content
  • Skip to footer

Smart Surfaces Policy Tracker

  • Search
  • Glossary
  • Best Practices
  • About
  • Help Desk

Honolulu Green Roof Feasibility

This Honolulu Ordinance considers green roofs infeasible only when: (i) the building is a single-family residence, (ii) the roof is occupied by energy or mechanical systems, or (iii) the roof slope exceeds 25% (14°).

Link:

  • Honolulu, Haw., Dep’t of Plan. & Permitting, Rules Relating to Water Quality § 20-3-63(c)(2) (July 2024).

Policy Details:

Locale: City and County of Honolulu, Hawaii [West]
Climate zone: Zone 1A: Very Hot Humid
Jurisdiction: Municipality [>150K]
Smart Surface(s): Green Roofs, Green Stormwater Infrastructure
Policy Type(s): City Code

Citation:

Honolulu, Haw., Dep’t of Plan. & Permitting, Rules Relating to Water Quality § 20-3-63(c)(2) (July 2024).

Footer

National League of Cities logo
American Public Health Association logo
SSC logo
Sabin Center logo

Copyright © 2026 · Sabin Center for Climate Change Law