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🌿 Landscaping Rules/Native Plants

Mililani Town vs Urban Honolulu

How do native plants rules compare between Mililani Town, HI and Urban Honolulu, HI?

Mililani Town and Urban Honolulu have similar restriction levels.

Mililani Town, HI

Honolulu County

Few Restrictions

Mililani Town landscaping may substitute native Hawaiian species under LUO Sec. 21-4.70; HOA guidelines may govern which are approved for front yards.

View full Mililani Town rules β†’

Urban Honolulu, HI

Honolulu County

Few Restrictions

Urban Honolulu allows native Hawaiian species as substitutions under LUO Sec. 21-4.70 but does not require native-only landscaping, with voluntary xeriscape guidance used in Kakaako and downtown streetscapes.

View full Urban Honolulu rules β†’

Key Facts Comparison

FactMililani TownUrban Honolulu
CodeLUO Sec. 21-4.70-
MandateNone, substitution allowed-
GuidanceBWS Xeriscape ProgramBWS Xeriscape Program
HOA layerMTA architectural rules-
Code section-LUO Sec. 21-4.70
Native mandate-None
Substitution allowed-Yes
Common in-Kakaako streetscapes

Highlighted rows indicate differences between cities.

Mililani Town FAQ

Can I replace my Mililani front lawn with ilima?

Under ROH yes, but the Mililani Town Association may require maintained turf coverage. Submit an architectural application before converting front yards.

Are native plants drought-friendly in Mililani?

Yes. Central Oahu's dry periods favor natives like ilima and uki uki. BWS Xeriscape Program highlights species suited to Mililani's sun and soil.

Urban Honolulu FAQ

Does urban Honolulu require native plants downtown?

No. LUO Sec. 21-4.70 permits native Hawaiian species as landscape substitutions but does not require them citywide. Kakaako master plans encourage native use voluntarily.

Can condo associations mandate native-only plantings?

Yes, HOAs and condo boards may set stricter plant lists for common areas; the city does not preempt those internal rules so long as LUO landscape minimums are met.

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