According to the listing:
A fine composition with an Ionic tetrastyle-in-antis temple front, with a full entablature and dentil pediment with scroll and wreath in the tympanum.
It's certainly eyecatching, and very much doing its own thing compared to the rest of the road. Built c. 1845.
GPS Coordinates:
51.46046, -2.61499
Location: Clifton