Honolulu County permits native Hawaiian species as landscape substitutions under LUO Sec. 21-4.70 but does not mandate native-only planting; voluntary guidance comes from the Board of Water Supply Xeriscape Program.
LUO Sec. 21-4.70 governs landscaping and screening requirements across zoning districts on Oahu. Native Hawaiian species may be substituted for standard street-tree species when landscape plans are submitted to the Department of Planning and Permitting. No ordinance requires exclusively native plantings in residential or commercial projects countywide. The Honolulu Board of Water Supply Xeriscape Program and the Oahu Planting Guide recommend native and drought-tolerant species for water conservation, particularly in leeward and windward rural areas where rainfall varies widely.
Landscape plan non-compliance under LUO Sec. 21-4.70 can delay certificates of occupancy and trigger Planning and Permitting corrections before final inspection.
Honolulu, HI
Honolulu has no city ordinance restricting lawn ornaments on residential property. HOA and condo covenants under HRS 421J and 514B commonly regulate ornament...
Honolulu, HI
Honolulu has no city ordinance regulating residential inflatable holiday displays. Size and blower noise are governed by HOA and condo covenants under HRS 42...
Honolulu, HI
Honolulu has no municipal ordinance regulating residential holiday lights. Display timing, brightness, and animation are governed by HOA and condo covenants ...
Honolulu, HI
Honolulu requires DPP building permits for outdoor kitchens with gas line plumbing, electrical wiring, plumbing fixtures, or structural roofs/pergolas. Stand...
Honolulu, HI
Honolulu has no smoker-specific ordinance. Hawaii Department of Health air pollution rules under HAR Chapter 11-60.1 apply to large commercial sources, not r...
Honolulu, HI
Honolulu Fire Code (ROH Chapter 20) adopts the International Fire Code with Hawaii amendments. IFC Section 308.1.4 restricts open-flame cooking and LP-gas co...
Side-by-side rule comparisons with other cities in Honolulu County.
See how other cities in Honolulu County handle native plants.
See how Honolulu's native plants rules stack up against other locations.
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