HCC §25-5-8

Rules for extra homes and guest houses in RS districts

Read the official text at hawaiicounty.gov ↗

In RS residential districts, you can build more than one single-family home on a lot if each home has the required minimum lot size. You can also add one guest house and one accessory dwelling unit. If your lot is smaller than required, you must follow the yard rules for the largest RS district your lot can meet. Exceptions to height, lot size, and yard rules may be approved for planned or cluster 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 single-family dwelling on each building site in an RS district provided there is not less than the required minimum building site area for each dwelling. (b) One guest house, in addition to a single-family dwelling, may be located on any building site in the RS district. (c) An accessory dwelling unit may be located on any building site in the RS district, as permitted under article 6, division 3 of this chapter. (d) If a legal building site in the RS district has less area or average width than is required, then the yard requirements for the building site shall be the same as in the RS district having the largest requirements for which the building site can comply. (e) Exceptions to the regulations for the RS district regarding heights, building site areas, building site average widths and yards, may be approved by the commission within a planned unit development, or by the director within a cluster plan development. (1996, ord 96-160, sec 2; ratified April 6, 1999; am 2015, ord 15-33, sec 3; am 2024, ord 24-70, sec 8.)25-5-8 25-75 SUPP. 17 (1-2025) Division 2. RD, Double-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.