Une base de données pour étudier vingt années de dynamiques du marché immobilier résidentiel en Île-de-France

Abstract

This article describes the preparation and consolidation process of a property housing market database from complex sources with restricted access. The CASSMIR database (Contribution to the Spatial and Sociological Analysis of the Residential Real Estate Markets) is a spatial/population dataset about the Parisian metropolitan area housing property market, from 1996 to 2018. The indicators in the CASSMIR database cover four thematic areas of investigation: prices, socio-demographic profile of buyers and sellers, purchasing regimes and types of property transfers, and types of real estate. These indicators characterize spatial units at three scales (communes, 1 km grid and 200 m grid) and population groups of buyers and sellers sorted according to social, generational and gender criteria. The delivery of the database follows a series of matching and aggregation of individual data from two original databases: a database on real estate transactions (BIEN database) and a database on first-time buyer investments (PTZ database). This article reports the main information contained in the CASSMIR database and the stages of preparation of the database.

Keywords

• housing market
• database
• Île-de-France
• spatio-temporal dynamics