That's the new entrance to Lime Street station. They're demolishing a 15 storey 1960's office block, Concourse House and building the 27/28 storey apartment/office tower in it's place. There is a row of shops in front of the station arch awaiting demolition, to be replaced by the steps and things in the picture. Here's another pic of the development from another angle, posted earlier, with another proposal directly behind it. Should cost around £35m I think...