Blank frontages

I'm still rather baffled by the odd design of the fronts of these houses.

From wander: Clifton Wander with Lisa, including Bristol Grammar School
Taken: Sun 28 March 2021 12:10
Rating: ★★

GPS Coordinates: 51.45631, -2.61063
Location: Tyndall's Park

Blank frontages
I'm still rather baffled by the odd design of the fronts of these houses.