Yes, Aston I'm sure your right that was my thinking too, I was born not 200 yards from Big Brum, in Newhall st, which also leads me to think this is not Steelehouse lane otherwise you would not be able to see Big Brum, it would be behind you!
I would think its a main police station and its definately not Digbeth. Its not looking up at Big Brum from Summerhill side, the roads would be going up not down.
To be honest I cant really remember where Rea st is now! So I'm in the dark on this one! Lol, Rea St was just a guess!