Conversion of Neptune Court from a cluttered back yardinto a vast glass-roofed display space has transformed the heart of the National Maritime Museum.
The concept of springing the 52m by 44m arched grid shell from the tops of the Grade I listed facades of the 19th century courtyard was thekey to achieving the transformation.
But now the project is complete, the intricate reinforcing structures, underpinning and complex heating and ventilation services that made it all possible are totally hidden from view.
Although the double glazed, solar shaded roof is the most visible part of the remodelling, its basic cost was a mere 10% of the total spent.
The bulk of the work hasbeen painstaking reconstruction to re-use the best features of the old buildings such as the staircases, while upgrading the complex to the latest museum standards.