In 1823 royal assent was given to ‘An Act for the Rebuilding of London Bridge’ and in 1825 John Garratt, Lord Mayor and Alderman of the Ward of Bridge Within, laid the first stone of the new London Bridge. In 1831 Sir John Rennie’s new bridge was opened further upstream and the old bridge demolished. St Magnus ceased to be the gateway to London as it had been for over 600 years. Peter de Colechurch had been buried in the crypt of the chapel on the bridge and his bones were unceremoniously dumped in the River Thames. In 1921 two stones from Old London Bridge were discovered across the road from the church. They now stand in the churchyard.