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Wailuku Zoning & Land Use Guide

Last updated: Verified:

Key Zoning Facts

Planning Department
County of Maui Department of Planning(808) 270-7735
Building Code Edition
2018 IBC with Hawaii amendments
ADUs Allowed
Yes
Primary District
R-1 Residential
Max Height
30 ft

Regulatory Layers That Apply in Wailuku

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Hawaii

  • Building Code: Hawaii State Building Code (2018 IBC)
View Hawaii zoning overview

County — Maui County

  • Role: Zoning, land use regulation, building permits, property records

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

  • HOA / CC&Rs common: Yes
  • Check HOA CC&Rs for additional restrictions.

Primary Zoning Districts

District CodeNameMin LotMax HeightFront SetbackSide SetbackRear SetbackFAR
R-1Residential6,000 sq ft30 ft15 ft6 ft15 ft
A-1Apartment6,000 sq ft45 ft15 ft10 ft15 ft
B-CTCountry Town BusinessNone45 ft0 ft0 ft0 ft

ADU Rules in Wailuku

ADUs:Allowed
Max Size
800 sq ft
Max Height
25 ft
Rear Setback
6 ft
Side Setback
6 ft
Parking
1 off-street space required
Owner Occupancy
Required
Permit Timeline
90-120 days
Full ADU rules for Wailuku

Official Sources

Frequently Asked Questions

Frequently Asked Questions

Can I build an ADU in Wailuku?
Yes. Maui County permits accessory dwelling units on residentially zoned lots in Wailuku, subject to size, setback, and owner-occupancy requirements.
How do I find the zoning for my property in Wailuku?
Use the Maui County GIS portal or visit the Department of Planning at the county building in Wailuku.
What zones allow multi-family housing in Wailuku?
Multi-family housing is permitted in apartment districts near Wailuku Heights and along Lower Main Street, as well as in the B-CT district in Wailuku Town where mixed-use development is encouraged.