The local council has had to plug a £1.75m funding gap at Centros’s regeneration of Bury St Edmunds caused by “acoustic challenges”.
St Edmundsbury council said that the public venue at the heart of the £85m cattle market redevelopment had “faced a funding shortfall on the construction of the venue”.
The council and developers had underestimated the cost of sound-insulating the building, which will be used as an exhibition and music venue.
St Edmundsbury said: “The acoustic challenges in building this have been difficult to overcome as it sits in the middle of shops and residential flats.”
The East of England Development Agency has already awarded the council a £1.5m grant to create the “multi-purpose venue” at the heart of the cattle market development.
The public venue is now more than eight months behind schedule.
Centros won consent to redevelop the 13-acre site in 2005. However, the 265,000 sq ft scheme has been dogged by controversy.
Local campaign group the Knights of St Edmund has used various tactics, including a 1,000-year old curse, to try to stop the development.
