Honolulu Zoning & Land Use Guide
Last updated: Verified:
Key Zoning Facts
Regulatory Layers That Apply in Honolulu
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA Flood Zones: Applicable
- View FEMA Flood Map
County — Honolulu County
- Role: The City & County of Honolulu is a consolidated city-county government that handles all planning, permitting, and zoning.
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 Code | Name | Min Lot | Max Height | Front Setback | Side Setback | Rear Setback | FAR |
|---|---|---|---|---|---|---|---|
| R-5 | Residential District | 5,000 sq ft | 25 ft | 15 ft | 5 ft | 5 ft | — |
| A-1 | Low-Density Apartment | 5,000 sq ft | 40 ft | 15 ft | 5 ft | 10 ft | — |
| B-1 | Neighborhood Business | 3,500 sq ft | 40 ft | 10 ft | 0 ft | 10 ft | — |
ADU Rules in Honolulu
ADUs:Allowed
- Max Size
- 800 sq ft
- Max Height
- 25 ft
- Rear Setback
- 5 ft
- Side Setback
- 5 ft
- Parking
- 1 off-street space required
- Owner Occupancy
- Required on either the primary or accessory dwelling
- Permit Timeline
- 60–120 days
Official Sources
Frequently Asked Questions
Frequently Asked Questions
Can I build an ADU in Honolulu?
Yes. The City & County of Honolulu permits accessory dwelling units (ohana units) on qualifying residentially zoned lots, subject to size, setback, and owner-occupancy requirements.
How do I find the zoning for my property in Honolulu?
Use the Honolulu Land Information System (HiCentral GIS) at gis.hicentral.com or visit the Department of Planning and Permitting for a zoning verification letter.
What zones allow multi-family housing in Honolulu?
The A-1 (Low-Density Apartment) through A-3 (High-Density Apartment) zones, as well as certain mixed-use districts, permit multi-family housing in Honolulu.
Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, financial, or professional advice. Zoning codes and building regulations change frequently. Always verify current requirements with your local planning department and building authority before making any decisions.