I didn't know it at the time I took this photo, but this is the former site of the Bethesda Chapel, destroyed during World War II. There's a picture of it on the Community Layer of the Know Your Place site.
I found out when I was doing some research on this later photo—Alma Church in Clifton was originally a daughter church of Bethesda Chapel, and has "Clifton Bethesda" engraved in the pediment.
Bethesda Chapel was founded by George Müller, one of the founders of the Plymouth Brethren, and director of Ashley Down orphanage, looking after more than ten thousand orphans in his lifetime.
GPS Coordinates:
51.45360, -2.60422
Location: City Centre