[throwaway_2626]

Average monthly pretax salary in Madrid: 2 575.46 EUR (source in es_ES: https://www.abc.es/espana/madrid/evolucionado-salario-medio-...)

Also, a shared apartment costs as much as you say. Not a room (source: idealista.es).

Purchase prices are high, but I'm curious as to what you consider a bad neighborhood, given the overall safety statistics in Spain, and Madrid in particular.

Housing affordability is a real problem, but misrepresenting data is counterproductive, as it can be easily disproven.

[contubernio]

No one lives in rooms. Everyone in Madrid lives in apartment.

The average salary refers to those who have a job. Most family units have some that don't.