After the financial crash in 1899, construction of apartments was almost completely halted. From 1911, the municipality took responsibility of building apartments, and up to right after 1930, new apartment areas for the worker class were built. These were high-quality apartments, with a focus on good distribution of light, air and parks. But the east-west distinction still showed through; in Torshov, Nordre Åsen, Vøyenvolden, Rosenhoff, Markus Thranes gate 8-20 and Tøyengata 47, the working class lived in the apartments. Officials and other middle class moved into the apartments that were built in the West End: Ullevål hageby, Lindern, Jessenløkken. Ilaløkken, which is located near the boundary line along Uelands gate, received a mixed population of middle class and workers.
