Penelope Curtis, Director of Tate Britain, said the public have been really patient while the renovations have been underway and she hopes the end result is welcomed.
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Highs on Thursday of 18C.
Barnet Council ran the school, which was an institution for young people with learning difficulties.
Bowers pleaded not guilty of assaulting his ex-fiancee Sophia Cahill in Croydon in January.