HCC §23-29
Rules for block sizes in new subdivisions
Read the official text at hawaiicounty.gov ↗This section sets size limits for blocks in subdivisions. Blocks can be up to 1,300 feet long and no more than two rows of lots wide, with some exceptions. They must be at least 400 feet long. The ideal length for normal residential blocks is 800 to 1,000 feet, but shorter if sewers run along rear lot lines.
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The ordinance, as written (Hawaiʻi County) — Block sizes
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) Blocks shall not exceed two tiers of lots in width and thirteen hundred feet in length, except for: (1) Blocks adjacent to arterial streets; or (2) When the previous adjacent layout or topographical conditions justify a variation. Long blocks shall be provided adjacent to arterial streets to reduce the number of intersections. The recommended minimum distance between intersections on arterial streets is eighteen hundred feet. Longer blocks shall be used when possible. (b) Blocks shall not be less than four hundred feet in length. (c) The desired length for normal residential blocks is from eight hundred to one thousand feet. When the layout is such that sewers will be installed or easements for future sewer lines are provided along rear lot lines, the block should not exceed eight hundred feet in length.
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.