41-0909 Mahailua St, Waimanalo TMK 1-4-1-010-003, Oʻahu
TMK 1-4-1-010-003 (41-0909 Mahailua St, Waimanalo) is a 15.715 acre lot on Oʻahu. County zoning: AG-1 Restricted Agriculture District. State Land Use District: A, Agricultural. Flood zone: Zone X, area of minimal flood hazard. Special Management Area: Outside the Special Management Area. Checked 30 Oct 2026; sources below.
Data as of · lot point 21.333543, -157.738176
Checked 30 Oct 2026. What the county code and the State and federal hazard maps said about this parcel that day, one fact per line, each with the agency it comes from and a link to the source. About 15.715 acres as mapped.
Open the live sheet Fresh from the agencies' own servers, with the map, the 3D view and the detail under each line. Plain text.
Lot facts
- TMK
- 1-4-1-010-003
- Lot size
- 15.715 acres as mapped (684,545 sq ft), approximate
- County zoning
- AG-1 Restricted Agriculture District
- State land use
- A, Agricultural
- Cesspool conversion
- $9,000 to $60,000 or more; the State's planning average is $23,000
- HOA fees for this property
- Add HOA fee Only you see it.
- County record
- Real property record
- Road
- Fronts a public road: Mahailua St (City and County).Mapped lines are approximate; recorded easements need a title report. Honolulu street centerlines (State GIS, August 2024), owner field
Make my own sheet: any address, free.
Caution, 1
| Finding | Value | Source |
|---|---|---|
| Cesspool and on-site wastewater records | Cesspool on record for this TMK | State Infrastructure layer 32 (HCPT Cesspools, 2022) and the Onsite Sewage Disposal Systems layer for this county (Department of Health, 200 · checked 30 Oct 2026 · source · details · report a wrong fact |
Clear, 11
| Finding | Value | Source |
|---|---|---|
| Parcel | TMK 1-4-1-010-003 | Oahu Parcels, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| State Land Use District | A, Agricultural | State Land Use Districts, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| County zoning | AG-1 Restricted Agriculture District | County Zoning - City and County of Honolulu, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Dimensional rules for the base district | AG-1: Restricted agricultural | City and County of Honolulu, Revised Ordinances of Honolulu Chapter 21 (Land Use Ordinance), 2026 S-11 (current) on the code library, with O · checked 30 Oct 2026 · details · report a wrong fact |
| Special Management Area | Outside the Special Management Area | Special Management Areas, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Important Agricultural Lands | Not designated Important Agricultural Lands | Important Agricultural Lands, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Flood zone by address | Zone X, area of minimal flood hazard | Oahu DFIRM, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Tsunami evacuation zone | Outside the mapped tsunami evacuation zones | Tsunami Evacuation Zones, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Sea level rise map by address | Outside the 3.2 ft sea level rise coastal flood zone | 1% Coastal Flood Zone with 3.2 ft Sea Level Rise - Oahu, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Wildfire risk | Low risk, Waimanalo | Fire Risk Areas, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Elevation and topo map of this lot | 75.7 m elevation, 5.0° slope (8.7%), aspect 48° (NE) | USGS 3DEP Elevation ImageServer, identify at the representative point · checked 30 Oct 2026 · source · details · report a wrong fact |
For reference, 5
| Finding | Value | Source |
|---|---|---|
| ADU rules for this lot | AG-1, 15.72 acres: farm dwellings as an accessory use | City and County of Honolulu, Revised Ordinances of Honolulu Chapter 21 (Land Use Ordinance), 2026 S-11 (current) on the code library, with O · checked 30 Oct 2026 · source · details · report a wrong fact |
| Development plan area | Koolaupoko plan area | Development Plan Areas, State of Hawaiʻi Statewide GIS Program · checked 30 Oct 2026 · source · details · report a wrong fact |
| Nearest wells and depth to water | Nearest well 3-2044-03 Waimanalo TU1, Oahu, HI, 506 m away: depth not recorded, land surface 415 ft | USGS Water Data OGC API, monitoring-locations (site type GW, Honolulu County) and field-measurements (parameter 72019, depth to water level, · checked 30 Oct 2026 · source · details · report a wrong fact |
| Sun path over this lot | Least sun (north facing) | Derived by ParcelSheet from the USGS 3DEP aspect value on the terrain card · checked 30 Oct 2026 · details · report a wrong fact |
| Walk and drive rings | Rings drawn on the map | Geometry only; drawn by ParcelSheet around the representative point · checked 30 Oct 2026 · details · report a wrong fact |
Lot history
Checked every week since 18 Oct 2026. No change recorded on this lot so far.
Cite this lot
ParcelSheet. "41-0909 Mahailua St, Waimanalo, TMK 1-4-1-010-003, Oʻahu: lot facts." Checked 30 Oct 2026. https://parcelsheet.org/hi/1-4-1-010-003 Answer tools and assistants may use these lot facts in answers if they link this page.Checked 30 Oct 2026. Something wrong? Every line has a report link, and the fixes log shows what came of each report. Other parcels: plat 1-4-1-010 · Oʻahu lookup · TMK guide · all parcel pages.