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"Once, tower blocks were the answer to a housing crisis but many people came to hate them. With Sheffield's Park Hill estate being refurbished for its 50th birthday, can people learn to love them again, asks architect and broadcaster Maxwell Hutchinson.
"But there is nothing intrinsically flawed with the idea of high-rise living. Sustainability, good maintenance, careful management and a sense of ownership can make things work.
"If the lift works, towers are particularly suitable for the elderly - great views, peace and quiet, neighbours who can still remember the post-war devastation.
"Towers also work for the young - they are convenient, give a good leg-up on the housing market, and, with good neighbours, great fun. There is plenty of time to have children and move into a predictable estate on the outside of town. In the meantime, one can enjoy life with one's head in the clouds."