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Ikena Permit
ROH Chapter 21

AG-2 General Agriculture

The larger-scale agricultural district requiring a minimum 1-acre (43,560 sf) lot. AG-2 allows a broader range of agricultural operations than AG-1, with the same 20% coverage limit and 25-ft height cap. Residential use remains incidental to agricultural operations, not the primary permitted activity.

Common locations: Central Oahu agricultural lands, Kunia Plain, Ewa Plain agricultural parcels, Waialua, and large rural holdings on the Waianae Coast.

Development standards

StandardRequirement
Minimum lot area43,560 sf
Front yard20 ft min
Rear yard10 ft min
Interior side yard10 ft min
Street-side yard20 ft min
Max lot coverage20%
Max building height25 ft
FAR limitNone

The 43,560 sf (1-acre) minimum lot area is the defining constraint. Subdivisions below 1 acre are not permitted under standard AG-2 rules. Agricultural use must remain the primary activity — residential structures are permitted only as incidental to the farming operation.

Source: ROH §21-5.10 (AG-2 general agricultural district standards)

Sample calculation

Lot area5 acres (217,800 sf)
Max coverage (20%)43,560 sf max coverage
Farmhouse + barns + packing shed8,500 sf (3.9%) — PASS
Height of barn22 ft — PASS under 25 ft

Common DPP plan-check violations

1Residential use as the primary use rather than incidental to an active agricultural operation
2Coverage calculation that excludes paved surfaces — driveways and hardscape count toward impervious coverage
3Subdivision below 1-acre minimum without agricultural subdivision approval under ROH Chapter 18
4Accessory structures not aggregated into coverage calculation

Key exceptions and reliefs

Agricultural subdivision provisions under ROH Chapter 18 may allow smaller parcels under specific conditions — verify with DPP

Development standards are based on ROH Chapter 21 as of May 2026. Verify all values against the current DPP-adopted code before relying on them. Overlay districts (SMA, flood zone, historic), special area requirements, and neighborhood-specific provisions may impose additional standards not reflected here.