When is a door not a door

When it can't be ajar...

This one needs to be viewed large.

I recently spotted that the 14 terraced buildings in this street have only two usable doors amongst them, both in the building on the far left. Three of the buildings have no door at all, and all the other doors are false. I haven't seen any access at the back, though I guess there must be some.

Since this week's word is door I thought at least one of these would count.

(Stitched time-wastingly together from 19 separate photos!)

Many thanks to everyone for kind and interesting comments yesterday.