A HUGE HM Revenue and Customs office block on Liverpool’s waterfront looks set to close.

More than 1,500 people work at the HMRC building at Queens Dock, which managers at the Government department have earmarked for potential closure.

The building opened in 1993 as one of the first new-build offices in the city, and helped start the renaissance of the waterfront.

But the building has significant ventilation and temperature control issues.

One source said it could cost as much as £6m to install full air conditioning in the building, run by Mapley Properties as part of a Private Finance Initiative (PFI) outsourcing project.

HMRC said that it had been reviewing its property requirements since it was created in 2005 out of a merger of the Inland Revenue and Customs and Excise.

PCS union said it was concerned about the announcement and the potential for job losses.

In common with all Government departments, HMRC has been told that it must lose between 11,000 and 12,000 workers after the Government’s spending review.

Around 5,000 people work for the department on Merseyside, and jobs cuts translated equally across the country could mean the loss of between 830 and 1,000 workers, the PCS union said.