Estimate French property value (DVF comparables)
fr_property_price_estimateEstimate a French property's market value by analyzing comparable recent sales nearby, with price per square meter and confidence range.
Instructions
Estimate the market value of a French property using comparable DVF sales (same type, similar surface, nearby, recent).
Method: geocode the address, select comparable sales within 'radius_m' of the same 'property_type' with a built surface within ±35% and sold within 'years_back' years, then apply the median EUR/m² to the property's surface. Returns a point estimate and a p25-p75 range with a confidence level based on the number of comparables.
Args:
address (string): property address
surface_m2 (number): built surface in m²
property_type (string): 'Appartement' (default) or 'Maison', etc.
radius_m (number): comparable radius in metres (default 500)
years_back (number): lookback window in years (default 5)
response_format ('markdown' | 'json'): output format
Returns: estimate (EUR), low/high range (EUR), median/p25/p75 EUR/m², comps count, confidence ('high'|'medium'|'low'|'insufficient'). This is a statistical estimate, not a certified valuation.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| address | Yes | Address of the property to estimate. | |
| radius_m | No | Radius for comparable selection, metres (50-5000). | |
| surface_m2 | Yes | Built surface of the property in square metres. | |
| years_back | No | How many years of past sales to consider (default 5). | |
| property_type | No | Property type to compare against, e.g. 'Appartement' or 'Maison'. | Appartement |
| response_format | No | Output format: 'markdown' (human) or 'json' (machine). | markdown |