The station's fourth span was renovated in 2010, involving repair and restoration of the original glazed roof, so that platforms 9 to 12 can once more enjoy daylight. A false ceiling or crash deck had been in place since 1996. Work was completed and the restored roof unveiled in July 2011. A second phase of improvements began in July 2014 and was completed two years later. Network Rail originally planned to demolish Span 4 and build an office block over it, which was successfully contested by Save Britain's Heritage.