TMK (1) — Oʻahu
City & County of Honolulu · Oʻahu · 171,948 parcels in the directory
Every Hawaiʻi tax map key starting with (1) belongs to the City & County of Honolulu. The next two digits are the zone and section; pick a section below to walk the tax map, or jump straight to a parcel by entering its TMK on the directory page.
Sections
County records
Ownership, exemptions, and tax history for any Oʻahu TMK are public records: Honolulu Real Property Assessment (RPAD) →
What a KILO read answers here
The directory entry on any parcel page is the public record's surface. A KILO read is the layer underneath — the parcel-level answers a project actually turns on:
- Zoning & entitlement — county zoning, state land-use district, and whether the intended use is by-right or discretionary.
- Flood — FEMA flood zone and base-flood elevation posture — including the June 2026 Oʻahu FIRM update.
- Wastewater — cesspool / septic / sewer status and the HAR §11-62 and Act 125 rules that apply.
- Shoreline & sea level — shoreline setback and the State SLR-XA exposure ladder.
- Contamination — DOH HEER and EPA facility context near the parcel.
- Cultural resources — the parcel's HRS §6E review pathway and documented cultural-resource context, with the reasoning shown.
$299/parcel · Pay-as-you-go · no subscription — or a plan if you underwrite regularly. Sign-in required; each read runs fresh against the live public record.