Construction is set to start on the new campus on the Bechtel House site at 245 Hammersmith Road.
Lendlease will begin work in July 2016 on the £275m, 250,000 sq ft office scheme designed by Sheppherd Robson in which Legal & General Property recently sold a 50% stake to Mitsubishi Estate London.
The scheme should be completed in the first quarter of 2019.