Databases

The databases contain eleven main series: global index, indices by segment and by region, transaction volumes, number of lots sold, median prices, unsold rates, annual rankings of the biggest sales, number of certificates issued, breakdown by type of operator, digital market volumes and regulation indicators.

Each series comes with a sheet: definition, source, period, frequency, unit, margin of error, date of last update. A revision log makes it possible to find the values as they were published on a given date.

The data are offered in CSV, XLSX and JSON format. A programming interface makes it possible to query the series by code, period and filter, with a limit of 100 requests per minute. A free key is issued on simple registration.

For heavier needs, a complete file is made available every quarter. The dictionary of variables describes each field and its possible values.

The open databases have enabled about a hundred academic works to see the light since 2019. They are also used by insurers to calibrate their premiums, by banks to assess guarantees, and by journalists to verify information.

The Observatory lists the works that use its data and presents them in an online bibliography. Users are invited to declare their publications there.