ETM Group's One Canada Square restaurant and cocktail bar is set to open in mid-October.
The new site, which had originally been scheduled to open in September, will sit in the lobby of its namesake, the 800ft tower at the heart of Canary Wharf.
Modern European-inspired One Canada Square restaurant will feature interiors by renowned architects David Collins Studio.
Former head chef of the Ivy Club Jamie Dobbin will be at the helm in the kitchen.
Featuring a 30-cover bar and 100-cover restaurant with mezzanine floor, One Canada Square will be open Monday to Friday for breakfast, business lunches, post-work cocktails and suppers as well as Saturday brunches, Saturday night drinks, dinner and private parties.