Timber Stud Supporting Wall

I saw this staircase briefly during major a refurbishment to 20 Gloucester Place in London. It is pretty unusual to see one of these staircases supported into just a timber stud wall.Each tread has timber blocking and wedges to hold it into place. It really does prove the point that the treads cannot possibly be true cantilevers out of the wall. It was also surprising to see how little the treads had moved and how firm the flights felt when I walked up them. The timber supporting the half landing and nearby treads had almost completely rotted away, but they still felt safe to walk on (until I looked under them!).

The pictures are all taken from the “wrong” side of the wall – the treads stick out of the other side.