A racing economy grew up around the racecourse, with many stables devoted to training thoroughbred horses. Urban development grew up around these racing activities with new neighbourhoods such as the Bois Saint-Denis exclusively devoted to the activity. There were two trainers and seventeen hands in the 1846 and thirty trainers and 309 nands in 1896. Many in the racing community were British—76% of the jockeys, lads and trainers in 1911—and the British were such a presence in the area that an Anglican chapel was built around 1870.