Most of the damp problems at the back are caused by water washing off/ through the "Patio" and the badly fitted downpipe thats leaking all over the steps support wall.

You'll never get render to stay on the damp walls below the damp course.

The white staining on the pillar supporting the steel beams is lime wash from when the pillar was built and then left uncovered for a long while (years)

Patio wants sealing properly, but if you are going to knock them down most of the problems will go.

Dont know of any prices, I've never paid for any building work.

Looks good for the money,If its not Sneinton...

Looks like Bakersfield or Carlton.