mcp-immo

Simulate the costs of buying a French dwelling and its rental yield: droits de mutation (official 2026 scale, about 6.42 % for communes over 5 000 inhabitants), notary fees and publication, commune-average taxe foncière (REI), modelled asking rent (Carte des loyers), and gross / net yields. The price defaults to a comparables-based estimate (estimate_property) but can be replaced by an agreed or asking price. All figures are indicative — the taxe foncière is a commune average, never an individual tax notice, and rents are modelled asking rents, not regulated reference rents. Source: DVF, Carte des loyers, REI.

Replay the comparable-sales estimator on the commune's own notarized sales: every historical sale is valued using only the sales recorded before it (no look-ahead, own deed excluded), then compared with the price actually paid. Returns MAPE, median and 90th-percentile absolute error, signed bias, P25–P75 range coverage and the same metrics by surface band and by year. Use it to say how reliable estimate_property is in this specific market.

Official cadastral parcel(s) containing an address: unique cadastral id (idu) quoted on deeds, section, number and the official contenance in m². The contenance is the taxed area of the whole parcel, land included — not the dwelling's habitable surface — and the cadastre never records ownership. Source: IGN / DGFiP via API Carto.

Population, postcodes, département, région, surface and center coordinates of a French commune, by name or INSEE code.

Side-by-side comparison of 2 to 5 French addresses in one call: current market level (€/m²), comparables valuation with confidence, asking rents, DPE with legal rental status (décret n° 2024-501) and estimated energy cost, plus row-index rankings (cheapest market, best yield). Each section degrades independently, like property_report. Source: DVF, Carte des loyers, ADEME — official open data.

Find official energy performance certificates (DPE: energy label A-G, GES label, surface, construction year) filed for a French address, with the legal rental status at each label (décret n° 2024-501) and an estimated annual energy cost. Source: ADEME open data.

Transparent comparables-based valuation of a flat or house at a precise French address: weighted median of nearby single-dwelling notarized sales, adjusted to current market level, with every comp and weight returned for audit. Also returns the official rent indicator and gross rental yield.

Resolve a French address, street, or city to normalized candidates with coordinates, INSEE city code and BAN id (Base Adresse Nationale). Use this first if an address is ambiguous.

Identify the IRIS — INSEE's infra-communal statistical unit, about 2 000 inhabitants — containing an address: 9-character IRIS code, name, type and commune. Join that code to INSEE's IRIS tables for population and Filosofi income. Boundaries from IGN ADMINEXPRESS; this layer carries identity only, no socio-demographic figures.

Official risk report for a French address or point: flood, clay shrink-swell, radon, earthquake, industrial sites... Source: Géorisques (Ministère de la Transition écologique).

Nearby points of interest around a French address or point, from OpenStreetMap: public transport (train, metro, tram, bus stop), schools and higher education, everyday shops, health (pharmacy, doctor, hospital) and green/sport space — each with how many are within the radius and the closest ones, in metres as the crow flies. The transports category also breaks its count down by mode (train, metro, tram, bus), so a tram stop is answered in its own right rather than drowned in a single transport figure. Answers the neighbourhood question no official French dataset covers directly. When Overpass is unreachable, every count is UNKNOWN (null) rather than zero. Source: OpenStreetMap contributors (ODbL), via the Overpass API.

Compute price-per-m² statistics (median, mean, quartiles, per-year evolution) from actual notarized sales around a French address or across a commune. Data 2021-2025.

One call, full dossier for a French address: price-per-m² market stats, recent notarized sales, energy diagnostics (DPE), natural & technological risks, commune profile, official rent indicators and an aggregate taxe foncière proxy — plus a comparables-based valuation, gross yield and yield after average property tax when type_local and surface_m2 are provided. Ideal first call when a user asks about a specific property. Pass `addresses` (2 to 5) instead of `address` to dossier several neighbourhoods in one call; each report is isolated, so one bad address returns its own error without sinking the batch.

List actual notarized property sales (price, date, surface, rooms) recorded by the French tax administration (DVF) around an address, or for a whole commune if only a city is given. Data 2021-2025, no API key.

Returns the annual average charge per taxable REI article for taxe foncière on built properties, including published communal, intercommunal, syndicate, GEMAPI and TEOM components. It is an aggregate proxy, not an individual property's tax bill. Source: DGFiP REI via OFGL.

Loyer de référence, loyer de référence majoré (the legal ceiling) and minoré, in €/m²/month, for a rent-controlled area — by number of rooms, construction period and furnished status. Covers only the areas whose authority publishes an open grid (Paris, Métropole de Lyon, Montpellier); the response states explicitly when an address is not covered instead of guessing. Sources: Ville de Paris, Métropole de Lyon, Montpellier Méditerranée Métropole.

Official modelled asking rents (€/m²/month, charges included) for any French commune: apartments overall, 1-2 rooms, 3+ rooms, and houses. Source: Carte des loyers, Ministère du Logement / ANIL.

Find the nearest French address for GPS coordinates.

Consumer-grade risk digest for a French address or point: one plain-language sentence each for flood, clay shrink-swell, radon, industrial sites (ICPE) and the DPE rental-ban schedule, plus a one-line headline and any other present risk named. Reuses Géorisques and ADEME. When Géorisques is unreachable every risk line reads UNKNOWN — never a clean bill of health. Source: Géorisques, ADEME.

The inverse of the estimator: 'with 300 k€, where can I buy?' For each commune of a département it computes the median €/m² from actual notarized sales (DVF, last 4 published years), divides the budget by it to get the surface the budget buys, and layers the modelled asking rent for the gross yield. Returns the qualifying communes ranked by surface, yield and price, plus the communes skipped for lack of data. The budget is the purchase price only — acquisition fees come on top (see acquisition_costs). Source: DVF, Carte des loyers, geo.api.gouv.fr.

Urbanism zoning and prescriptions applicable to an address, from the Géoportail de l'urbanisme: zoning area label and type (U urban, AU to be urbanised, A agricultural, N natural), the regulation document reference, and the surface / linear / point prescriptions (emplacements réservés, protected areas, alignments…). It states which rules apply, never whether a project is permitted. Source: GPU, DGALN / IGN.