Accountancy firm EY has agreed a 15-year lease on 41,000 sq ft in Mosley Street Ventures' Manchester city centre office block which is currently under construction.
The offices will be on the eighth, ninth and tenth floors. The firm is set to move its 450 staff from 100 Barbirolli Square into the property by 2017.
The 11-storey block next to Argent and Greater Manchester Pension Fund's One St Peter's Square is being developed by Fred and Peter Done's property company. Laing O'Rourke was named as the contractor earlier this year. SimpsonHaugh & Partners is the architect.
The new development will total 160,000 sq ft, with 5,142 sq ft of ground floor leisure space and a two-storey underground car park for 72 vehicles.
Addleshaw Goddard remains the only unfulfilled requirement within the Barbirolli set, with EY's announcement a week after PwC confirmed that it had agreed a 50,000 sq ft pre-let in Allied London's No.1 Spinningfields. DLA Piper secured a 40,000 sq ft lease in One St Peter's Square at the end of last year.
Simon Allport, North West senior partner at EY, said: "Two St Peter's Square will be an outstanding development in a flourishing area for business and culture in Manchester, following the transformation of St Peter's Square, the town hall and the Central Library.
"The building's convenient location, environmental efficiency and leading edge design will create the ideal environment for our North West people and clients to work in, as well as act as an important regional hub for the wider UK firm."
Cushman & Wakefield and SGH Martineau advised EY.
DTZ and Myersons advised Mosley Street Ventures.