The Carlyle Group has replaced the agents on the retail space at Piccadilly Place in Manchester; Cushman & Wakefield taking over from Tushingham Moore.
Piccadilly Place contains 30,000 sq ft of retail and leisure units beneath 300,000 sq ft of office space.
Apart from a deal in spring 2010 to Starbucks for a 1,500 sq ft coffee shop the location has struggled to attract retail and leisure tenants.
Ben du Boulay, director of Carlyle, said: "The appointment of Cushman & Wakefield is a positive step forward as we seek to establish a compelling retail and leisure offer at Piccadilly Place.
"Our aim to secure a vibrant tenant mix at the development, to create the perfect atmosphere for people who live, work and spend their leisure time at Piccadilly Place."
Matt Illingworth, partner at Cushman & Wakefield, added: "This is a fantastic high-profile scheme for Cushman & Wakefield. We will work in partnership with the Carlyle Group and are optimistic about letting the remaining retail and leisure units, to give the Piazza at Piccadilly Place a real buzz."
Piccadilly Place was developed by Argent and sold to Carlyle. Development completed in November 2009.