At the centre of the Weoley Castle estate is a circular parade of shops around a small green, Castle Square. There is a surprising variety of shops, including an independent butcher and a greengrocer, in an age when so many similar suburban shopping parades only have convenience stores and fast food outlets.
I lived in Harborne/Bournville/Selly Oak (yes, I was a student at the University) for 5 years and several times tried (and failed) to see "the ruins" at Weoley Castle with the aid of an A-Z. Now my curiosity is satisfied - I didn't miss much.