South

IQL South was the first to be developed and is partially occupied, with parts still under construction. It is located between Westfield Stratford City and Queen Elizabeth Olympic Park. The Turing Building,^[8] a 350,000 sq ft office building^[9] announced Everyman Cinemas as the anchor leisure tenant on the ground floor of the building. ^[10]

North

IQL North was the second core area to be developed. It received planning permission in 2017 and received building code names "N22" and "N21" by the architects, Rogers Stirk Harbour + Partners (RSHP). The site is located between Penny Brookes Street and International Way, north of Westfield Stratford City.

Current commercial office tenants

Current tenants include:

• The Financial Conduct Authority currently occupies number 12 Endeavour Square.^[11]
• Transport for London currently occupies number 5 Endeavour Square.^[11]
• UNICEF
• Cancer Research UK^[12]
• The British Council^[13]

Whilst UNICEF are located inside Endeavour Square, their primary entrance is through 1 Westfield Avenue, occupying the top five floors of the FCA building at number 12 Endeavour Square. Some key tenants have connected shared infrastructure with the extended Westfield Stratford City campus, including badge access, fire and safety systems.

Retail units

There are a number of retail units occupied by Pret a Manger, Tonkotsu and an independent cafe, whilst the others remain unoccupied or are in the process of being fitted out.

Future commercial office tenants

As of November 2018^[update], bespoke building construction is underway for future tenants, including:^[11]

• HMRC expected in late 2020, at number 14 Westfield Avenue.^{[clarification needed][14][15]}