Urban Honolulu caps residential structures at 25 feet under ROH 21-4.60 with a 30-foot envelope plane, while Waikiki, Kakaako, and Ala Moana high-rise districts follow separate maximum heights.
Urban Honolulu's iconic skyline in Waikiki, Ala Moana, and Kakaako reflects its layered height rules. ROH/LUO 21-4.60 caps residential structures in R-3.5, R-5, R-7.5, R-10, and R-20 districts at 25 feet with a 30-foot envelope plane rising from side yards to control bulk near neighbors. Apartment districts like A-1 and A-2 allow taller buildings, and Business Mixed Use districts in Ala Moana and Kakaako reach several hundred feet. Waikiki Special District caps new towers and preserves critical Diamond Head view corridors. Height is measured from existing or finished grade, whichever is lower. Residential standards are cross-referenced in ROH 21-3.70-1. Hawaii Community Development Authority rules apply in Kakaako.
Exceeding Honolulu's district height or envelope plane triggers stop-work orders, required redesign or partial demolition, daily fines, and withholding of certificates of occupancy, delaying high-value condo projects in Waikiki and Kakaako.
Urban Honolulu, HI
Urban Honolulu enforces the islandwide Land Use Ordinance at ROH 21-4.60 to limit fence, wall, and hedge heights in Waikiki, Ala Moana, Manoa, and other CDP ...
Urban Honolulu, HI
Urban Honolulu enforces ROH 21-4.30 setbacks across dense CDP neighborhoods, with residential districts typically requiring 10-foot front yards and 5-foot si...
Urban Honolulu, HI
Urban Honolulu caps impervious surface at 75 percent of lot area for residential dwellings permitted after May 1, 2019, under ROH 21-3.70-1 to manage runoff ...
Side-by-side rule comparisons with other cities in Honolulu County.
See how other cities in Honolulu County handle structure height limits.
See how Urban Honolulu's structure height limits rules stack up against other locations.
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