30 St Mary Axe in the City of London was honoured with the award for Best Built Project Five Years On by the Mayor of London, Boris Johnson, at the London Planning Awards ceremony in City Hall on Monday. The annual awards are run by the Mayor of London, London First, the RPTI and London Councils and recognise planning professionals and organisations that have made a vital contribution to the capital in making it a better place to live, work, do business and visit.