Here is Plumage House, 106 Shepherdess Walk, London N1.
This was a feather factory. According to Spitalfields Life this operated until 1994. The building is now rather shabby, though in a dignified way.
I wonder what will happen to it?
In the drawing, the main colours are Fired Gold Ochre, Buff Titanium, Phthalo Turquoise, and Perylene Maroon, with Mars Yellow and Green Apatite Genuine for the green.