HCC §25-5-27

Rules for building multiple homes on one lot in the RD district

Read the official text at hawaiicounty.gov ↗

In the RD district, you can build more than one home on a lot if each home has enough land. There must be at least 15 feet between main buildings. You need plan approval for new buildings and additions, except for one single-family home and its accessory buildings. Accessory dwelling units are allowed under other rules, and the commission can approve exceptions in planned developments.

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The ordinance, as written (Hawaiʻi County) — Other regulations

A copy, taken August 21, 2026. The version published by Hawaiʻi County is the one that governs, and it may have changed since. Check it before relying on anything here.

(a) There may be more than one double-family dwelling or more than two single-family dwellings or any combination thereof on each building site in the RD district; provided that the minimum land area requirement for each dwelling unit is met. (b) There shall be at least fifteen feet between the exterior walls of each main structure on the same building site in the RD district. (c) Plan approval shall be required for all new buildings and additions to existing buildings in the RD district, except for construction of one single-family dwelling and any accessory buildings per lot. (d) An accessory dwelling unit may be located on any building site in the RD district, as permitted under article 6, division 3 of this chapter. (e) Exceptions to the regulations for the RD district regarding heights, building site areas, building site average widths and yards, may be approved by the commission within a planned unit development. (1996, ord 96-160, sec 2; ratified April 6, 1999; am 2005, ord 05-155, sec 3; am 2015, ord 15-33, sec 4; am 2024, ord 24-70, sec 9.)25-5-27 Division 3. RM, Multiple-Family Residential Districts.

Read the official text at hawaiicounty.gov ↗as published Jul 16, 2026our copy taken Aug 21, 2026

Published by the County of Hawaiʻi Office of the County Clerk.

LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.