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) →
Building-permit activity on Oʻahu
Island-wide monthly building-permit issuance, from the City & County's published permit corpus — an activity signal about the island, never a statement about any parcel.
A KILO read carries this series at the parcel's own TMK-area scale, beside the rest of the record.
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.
And the read is where the work starts, not where it ends: the pathway it produces becomes a project you can track — filings, review clocks, submittal checklists, agency comments — with exports for the deal file. See everything a read carries →
$50/parcel · Founder price · 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.