Brussels, Flanders and Wallonia in one schema

Belgian property data,
from a single address.

Estalytic reads the federal and regional publishers for any Belgian address and returns normalised, source-backed data and reports.

Kerkstraat 12, 9000 Gentsample

21673D0145/00Y003
214 m² registered

pluvial flood-prone · medium

.JSON

 1{
 2 "createdAt":"2026-10-05T09:12:44Z",
 3 "datasets": [
 4  {
 5   "id": "cadastral",
 6   "status": "ok",
 7   "provider": "SPF Finances",
 8   "data" : { "parcel" : { "reference": "21673D0145/00Y003" } }
 9  },
10  { "id": "flooding", "status":  "ok", … },
11  { "id": "soil", "status":  "ok", … },
12  { "id": "zoning", "status":  "ok", … },
13 ]
14}

[ 01 / 05 ] · Why estalytic

Belgian property data lives in
many places and shapes.

Three regions, two languages, different projections and schemas. Building that plumbing is a project. Keeping it working is a job.

Three regions, one shape

Brussels, Flanders and Wallonia each publish their own services. You get the same JSON structure wherever the region.

Projections resolved

We geocode the address, find the parcel it sits on and return the coordinate we used, with its reference system stated.

Dutch and French, side by side

Terminology changes at the language border. Source codes stay next to readable values, so you can show the label your users expect.

Connectors we maintain

Upstream services change, quietly. We absorb the change; your integration keeps talking to one stable interface.

[ 02 / 05 ] · Datasets

Four datasets today.
Many more coming.

Field reference

Parcel & building

The parcel at the address, its registered and measured surface, and the building at that point.

parcel: 21673D0145/00Y003
surface: 214 m²
building: 96 m²

source · SPF Finances

Flood risk

Each region's own hazard model, kept intact.

pluvial: med
fluvial: low
coastal: low

source · VMM Watertoets

Soil pollution

Whether the parcel appears in the regional soil inventories, and what is recorded there.

status: no_data
meaning: not on the register
regions: BXL · VL · WAL

source · OVAM / SPW / Bruxelles Env.

Land-use zoning

The zone on the regional land-use plan, with the plan it came from.

zone: Zone d'habitat
plan: Plan de secteur
regions: BXL · WAL

source · SPW / PRAS - Flanders upcoming

[ 03 / 05 ] · OUTPUTS

For developers

One API.
Every Belgian region.

Match an address, then take a snapshot: every dataset comes back with a status and its source. Map the fields you need straight into your listings.

Read the docs

datasets: 4
regions: 3
response shape: 1

// 1. Match the address
const search = await fetch(`${API_URL}/searches`, {
  method: "POST",
  headers,
  body: JSON.stringify({
    streetName: "Kerkstraat",
    houseNumber: "12",
    postalCode: "9000",
  }),
}).then((res) => res.json())
 
// 2. Query every dataset for it
const { datasets } = await fetch(
  `${API_URL}/searches/${search.id}/snapshots`,
  { method: "POST", headers },
).then((res) => res.json())

Property report05.10.2026

Kerkstraat 12

9000 Gent · Flanders · 21673D0145/00Y003

Registered surface: 214 m²
Flood risk: Medium
Soil inventory: No record
Land-use zoning: Zone d'habitation

For your clients

A report they can read.
Dated, sourced, ready to send.

Turn available property facts into downloadable reports

[ 04 / 05 ] · How it works

From address to evidence.
In three steps.

01
Send an address
From your listing form, a script, or the lookup box. We match it with the federal address register and find the parcel it sits on.
Address matching
02
We ask the publishers
Every dataset comes straight from the official publisher for its region, normalised into one shape.
See the sources
03
Use it your way
Map the JSON into your product, get the report, or both.
Outputs

[ 05 / 05 ] · Integrations

Build the experience.
We connect the data.

Bring Belgian property information into your software. Keep your interface, your workflows, and your customer relationship. One integration on your side, every connection maintained on ours.

BeST Address — address matching, Belgium
SPF Finances — cadastral parcels, Belgium
Vlaamse Milieumaatschappij, Watertoets — flood maps, Flanders
Bruxelles Environnement — flood hazard and soil inventory, Brussels
OVAM — soil information register, Flanders
Service public de Wallonie — flood hazard, BDES soil and Plan de secteur, Wallonia