Nicola
The Sandy Lane I remember was obviously much later than you want. I have no older photos of the Coventry Rd end of Sandy Lane and today it bears no resemblance to what it once was.
These three photos show part of Sandy Lane and I have no doubt that most of the properties were built around the same time as Court 1. The first one shows Sandy Lane from the Camp Hill end, the second one shows the junction of Sampson Rd North. The third one shows a back court, I'm sorry but I have no idea which one it is.
As for obtaining more photos, I can only suggest you get your hands on some books of the Bordesley, Small Heath and Camp Hill areas of Birmingham as you are likely to find them in any books of those areas.
Phil