...according to this Knight Frank document from July, the site is in Westfield Stratford City, part of the Olympic Park development:
http://www.knightfrank.co.uk/resources/commercial/brochure/retail-in-detail----26-july-2013.pdf
http://www.retail-week.com/property...pen-store-in-westfield-london/5051374.article
http://uk.westfield.com/stratfordcity/getting-here/
Tesla did use the location over a year ago for a Roadster event: http://www.teslamotors.com/event/roadster-experience-westfield-stratford-city
No confirmation as yet regarding the new showroom.
http://www.knightfrank.co.uk/resources/commercial/brochure/retail-in-detail----26-july-2013.pdf
http://www.retail-week.com/property...pen-store-in-westfield-london/5051374.article
http://uk.westfield.com/stratfordcity/getting-here/
Tesla did use the location over a year ago for a Roadster event: http://www.teslamotors.com/event/roadster-experience-westfield-stratford-city
No confirmation as yet regarding the new showroom.