Campaigners have renewed calls for more affordable housing and rent controls after it emerged private flats in a former public building were being let out for “completely unaffordable” prices of up to £2,500 a month. Flats in the former Boroughmuir High School – sold to developers CALA by the City of Edinburgh Council in 2015 for £14.5m – have recently appeared on the rental market. London estate agent OpenRent is advertising a one-bed Boroughmuir apartment for £1,250 a month while Glenham Property is marketing a three-bed for £2,500. Housing campaigners have reacted angrily, with tenant’s union Living Rent claiming the high prices demonstrate “why we have a housing crisis in Scotland”.