R-10 Zone in Honolulu, HI
R-10 zoning district rules in Honolulu, HI. Permitted uses, setbacks, height limits, and lot coverage requirements.
The R-10 zone in Honolulu, HI is a residential district (Single-Family Residential). Permits one dwelling unit per lot. Typically the most restrictive residential zone. Designed to preserve the character of established single-family neighborhoods. This zone requires a 25 ft front setback, 10 ft side setback, and 20 ft rear setback. Maximum building height is 30 feet (2 stories). Maximum lot coverage is 40%.
Common Permitted Uses
- Single-family homes
Permits one dwelling unit per lot. Typically the most restrictive residential zone. Designed to preserve the character of established single-family neighborhoods.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 25 feet |
| Side Setback | 10 feet |
| Rear Setback | 20 feet |
Honolulu LUO R-10 (Single-Family Residential, 10,000 sqft minimum lot) — larger lot residential zone. Common in hillside neighborhoods.
Height Limits
- Max Height
- 30 feet
- Max Stories
- 2
Honolulu LUO R-10 — 30 ft height limit for larger lots.
Lot Coverage
- Max Coverage
- 40%
Honolulu LUO R-10 — 40% lot coverage for 10,000 sqft minimum lots.
Parking Requirements
Single-family: 2 spaces per single-family dwelling. Covered parking (carport or garage) strongly preferred in Hawaii due to sun and weather. Multi-family: 1–1.5 spaces per unit depending on bedroom count and proximity to Skyline rail transit. Reduced requirements near rail stations.
Source: Revised Ordinances of Honolulu Chapter 21 (Land Use Ordinance); Hawaii Revised Statutes Section 46-4.5 (Act 232, 2023). Last verified April 6, 2026. View source