Smith & Williamson is understood to be looking to sign for around 150,000 sq ft of office space
£200m office redevelopment is expected to be ready for occupancy by autumn 2020.
At least three developers have been shortlisted for second-round bids for the five-acre site
Stanhope and Network Homes have had approval for a £200m resi-led modular scheme in Southall, UB2
Stanhope has submitted two planning applications for sites in Hammersmith and Fulham, SW6, owned by the council