High Quality Content by WIKIPEDIA articles! The 1950s and 1960s saw the construction of a large number of Brutalist apartment blocks in Sheffield, England. Sheffield City Council had been clearing inner-city residential slums since the early 1900s. Prior to the 1950s these slums were replaced with low-rise council housing, mostly constructed in new estates on the edge of the city. By the mid-1950s the establishment of a green belt had led to a shortage of available land on the edges of the city, whilst the government increased subsidies for the construction of high-rise apartment towers on former slum land, so the council began to construct high-rise inner city estates, adopting modernist designs and industrialised construction techniques, culminating in the construction of the Park Hill estate.