Resolve a free-text French address to geographic coordinates and its INSEE commune code using the Base Adresse Nationale (BAN).

Use this to obtain the latitude/longitude and 'citycode' (INSEE code) needed by the other tools, or to validate/normalize an address.

Args:

• address (string): free-text French address

• limit (number): max candidate matches, 1-20 (default 5)

• response_format ('markdown' | 'json'): output format (default markdown)

Returns: ranked candidates with label, lat, lon, citycode (INSEE), postcode, city, score (0-1), type.

List recorded real-estate sale transactions from the French DVF open dataset, near an address or within a commune.

Provide EITHER 'address' (recommended — enables radius search) OR 'citycode' (INSEE, whole commune).

Args:

• address (string, optional): address to search around

• citycode (string, optional): INSEE commune code (5 chars)

• radius_m (number): radius around the address in metres (default 500)

• property_type (string, optional): e.g. 'Maison', 'Appartement'

• since_year (number, optional): earliest sale year (>= 2010)

• min_rooms / max_rooms (number, optional): room-count filter

• limit (number): max results, 1-200 (default 50)

• response_format ('markdown' | 'json'): output format (default markdown)

Returns: sales with date, price (EUR), property type, surface (m2), rooms, price/m2, address, commune. Sorted most-recent first.

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.

Compute commune-level real-estate market statistics from DVF: median/p25/p75 EUR/m², sales volume, and year-over-year trend for a property type.

Provide EITHER 'address' (its commune is used) OR 'citycode' (INSEE).

Args:

• address (string, optional): address inside the commune

• citycode (string, optional): INSEE commune code

• property_type (string): 'Appartement' (default) or 'Maison', etc.

• years_back (number): lookback window (default 4)

• response_format ('markdown' | 'json')

Returns: salesCount, medianPricePerM2, p25/p75 EUR/m², medianPrice, and yoyPricePerM2Pct (last full year vs prior year, null if insufficient data).