Housing shortages affect all of the major European capitals and Paris is no exception. As any first-year business studies student knows, where supply is lower than demand, there are opportunities for profit. However, the supply of high cost housing must be balanced with a steady supply of affordable accommodation or else the core workers needed to keep cities functioning will rapidly be priced out. PROMO GERIM SA is a property developer specializing in residential projects in priority districts in the Parisian suburbs and surrounding areas. Since the beginning of the 1980s, it has built thousands of new homes in the greater Paris region. Its most current project is the construction of 600 residential apartments, 27,000 m2 of office space and two hotels in Villejuif.