Natural hazards at your plot, from the public record

Drop a pin on the plot you are paying for. We read six public sources at that point while you wait: height above sea level, a global flood model, a century of earthquakes, recorded tsunami run-ups, nearby volcanoes and the distance to the coast. Every figure links to the source and the exact query, so you can check it yourself.

Context, not a verdict. These are global datasets with coarse cells and old records. They tell you which questions to ask, not whether a plot is safe. For a purchase, ask for a local soil, flood and seismic report and the official hazard maps of the country. We do not score or rank plots on this page.

1. Drop a pin

Tap the map where the plot is, or paste coordinates or a Google Maps link.

Map © OpenStreetMap contributors. Your pin goes to our worker rounded to about 10 m; it asks the six sources and keeps the answer at the edge for up to 30 days so a repeat view is instant. The pin is not linked to you and not stored anywhere else. Limit: 12 new pins per 10 minutes per address, to stay fair to the free public services behind this page.

2. What the public record says

Drop a pin to start.

3. Zoning: is this plot allowed to have villas?

In Indonesia this is decided by the official spatial plans: the regency plan (RTRW) and, where one exists, the detailed plan (RDTR) with its zoning map. We do not show a zone class for your pin, and we never guess one.

Why there is no automatic answer here

The official viewers are run by the Ministry of Agrarian Affairs and Spatial Planning (ATR/BPN). We test from our servers, live, whether they answer a machine point query. The result is below and refreshes every hour.

Checking the official services…

Unofficial copies of zoning maps circulate on public map platforms. We do not use them: an outdated or redrawn zone is worse than none when you are about to pay.

How to check it yourself, today

Open the official map. GISTARU RDTR Interaktif (detailed zoning, where an RDTR has been issued) or BHUMI (land parcels and spatial plan layers). Both are free and need no account; some networks outside Indonesia cannot reach them.
Find the plot by coordinates. In BHUMI, use coordinate search (Pencarian Koordinat) with the pin from step 1, or search the parcel by its NIB or certificate number if the seller gave you one.
Read the zone in the legend. Note the zone name and code exactly as shown, for example perumahan (housing), pariwisata (tourism), pertanian (farmland) or RTH (green open space), and the date of the plan.
Get it in writing. A map is not a permit. Ask the seller or developer for the KKPR (confirmation that the planned use fits the spatial plan, issued through OSS) and the PBG building approval for this exact plot, and have a notary (PPAT) or lawyer check them at the land office (Kantor Pertanahan).

Not legal advice. Zoning in Indonesia changes when regencies revise their plans, and the map on a viewer can lag the regulation. Only the regulation in force and a KKPR issued for the plot are binding. Verify with the regency spatial planning office and the land office before you pay anything.

4. Tracked projects and watched areas

A monthly job runs the same code for every tracked project whose location we know from public sources, and for every satellite-watch area.

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Sources and limits

What we read, and from where

Height: Copernicus DEM GLO-30, one 30 m cell, read from the cloud-optimised files on AWS Open Data.
Flood: WRI Aqueduct Floods v2 (CC BY 4.0), 100-year river and coastal depth, 1 km cell.
Earthquakes: USGS ComCat, magnitude 5 and above within 100 km since 1900.
Tsunami: NOAA NCEI Global Historical Tsunami Database, run-ups within 50 km.
Volcanoes: Smithsonian Global Volcanism Program, Holocene volcanoes within 100 km.
Coast: OpenStreetMap coastline within 10 km, via the Overpass API.

What we left out, and why

JRC global river flood maps: published as download tiles with no point query service, so we read Aqueduct, which is.
Seismic design values (the national code map): not published as an open point service for most countries we cover.
Landslide and liquefaction: no global open point source with a resolution that means anything for one plot.
Zoning: see section 3.

API: /api/x/p/hazards?lat=&lng= (JSON, every figure with its source, query and limits) and /data/hazards.json (monthly batch). Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018, provided under COPERNICUS by the European Union and ESA.