Forty
Midfield
All the land on the Sheepfolds side is vacant, there was no real need to do anything to the original entrance other than renovation work. Too bring it up to standard. The Main entrance would be on the Sheepfolds side anyhow. That would align with the new footbridge.It's Grade II* listed (there's only about a dozen of them in Sunderland and even less Grade I listed) which restricts what you can do. You certainly wouldn't be able to totally redevelop it, just minor alterations here and there. Any attempt at major changes would likely lead to legal challenges.
The Platforms would need work but that could have been included in the work to extend them down to St Peters.