Designed by Stirk Harbour + Partners, the new building will create 280,000 sq ft of new workspace across 10 storeys and sit in a prominent location on the site.
Lendlease is presently carrying out some site preparation works and is expected to start construction works on the £45m project later this year.
This planning consent builds on the progress being made at International Quarter London, which will welcome the first commercial tenant, Transport for London, to their new major office in September.
Jonathan Emery, Managing Director Property, Europe for Lendlease, said: “Momentum is truly building at International Quarter London and achieving planning permission for our S9 building is another exciting step forward for the development.”
“Completing our second residential tower at Glasshouse Gardens in May and seeing our first two commercial buildings take shape is a testament to the pace of change happening in Stratford.”