12 Endeavour Square

12 Endeavour Square, also known as 1 Westfield Avenue, is a commercial building within Stratford Cross in Stratford, London, occupied by the Financial Conduct Authority^[1] and UNICEF.^[2] It was completed in 2018, its developers were Lendlease and London & Continental Railways, and its architect was Rogers Stirk Harbour + Partners.^[3]

12 Endeavour Square
Location within London
Former names	S5
Alternative names	1 Westfield Avenue
General information
Status	Completed
Type	Office
Address	12 Endeavour Square 1 Westfield Avenue
Town or city	Stratford, London
Country	England
Coordinates	51°32′31.873″N 0°0′33.977″W
Current tenants	Financial Conduct Authority UNICEF
Construction started	May 2015
Completed	April 2018
Owner	DWS Group
Technical details
Floor count	20
Floor area	515,000 sq ft (47,800 m2)
Lifts/elevators	8
Design and construction
Architecture firm	Rogers Stirk Harbour + Partners
Developer	Lendlease London & Continental Railways
Main contractor	Lendlease
Website
www.twelveesq.com