Co-ownership data, finally readable
Search a building, a street, a town or a manager: history, property market, risks and contacts, built from open data.
Type an address (suggestions as you type) or a registration number, for example AB1234567.
An entry point for every need
Pick your profile: we take you straight to the useful information.
I own a flat
Find your building: manager, charges history, documents and useful contacts.
Find my building →I'm buying or investing
Price per m² by street, market trends, rents, natural risks and the building's condition before you sign.
Browse the directory →I'm a manager or a firm
Your page, your buildings, your indicators. A QR plate and a contact filter to protect your number.
See the firms →I'm a professional or developer
The API and MCP server give your tools and AI agents access to this data.
Discover the API →What changed
Recent data updates.
- 183,818 status changes detected in the registry for the vintage 2025
- Potentiel radon des communes — 130 new values, 0 revised
- GASPAR — risques recensés, arrêtés de catastrophe naturelle, plans de prévention et DICRIM par commune — 2,294 new values, 0 revised
- API Géo — population et superficie des communes (INSEE) — 90 new values, 0 revised
- Demandes de valeurs foncières agrégées par commune (rues avec copropriétés) — 118 new values, 0 revised
- Registre national d'immatriculation des copropriétés (historique par millésime) — 668 new values, 0 revised
A QR plate in the lobby, a number that is never yours
Dynamic QR plate and contact filter: solicitors are sorted, new residents can reach you, your number stays private.
from 59 €
Discover the plateData and sources
Every indicator is sourced, dated and kept over time.