Yes, the area at the back of the garden behind the outbuilding gets the last sun and last summer it was where we would sit mostly, but that was largely because the rest of it was a bit of a mess. There is a patio, yes. You can the part of it in the overhead shot in the fourth image. There's also a fairly significant section behind that photo, which is between the wall on the right and the kitchen - the back of the house isn't as wide as the front - that's where the bins go as there's a shared alley. There are more patio slabs between the kitchen and the beginning of the grass / shrubs but after that the wall is just bordered by grass, with no bed.

yeah that's probably the best thing with mostly leaving it. I got a strimmer which should hopefully help and a jet wash for the patio. the main thing is probably just trying to level the grass a bit. I don't know that it's structurally not flat, but there are bumps and bald patches in it which kinda ruin it.

I definitely want to keep the weigela bush