Netherlands house prices (huizenprijzen, WOZ-waarde) for any postcode or CBS buu
Netherlands house prices (huizenprijzen, WOZ-waarde) for any postcode or CBS buurt code: average home value (WOZ) in the neighbourhood with its trend, plus actual average sale prices per year in the municipality vs the national average. Property valuation context for real estate, mortgage, investment and relocation agents. Source: CBS, Kadaster.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
20 msmedian answer time
$0.003listed price per call
$0.003price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://factline.dev/v1/house-prices
| Category | Code and developer |
|---|---|
| Provider host | factline.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.003 | 20 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"postcode": "2517AS"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"code": {
"description": "Alternative: CBS neighbourhood code, e.g. BU03440612",
"type": "string"
},
"postcode": {
"description": "Any Dutch postcode in the neighbourhood, e.g. 3511LX",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}