Behind this (normally closed) gate are some nice buildings; I would imagine from the latter part of the 19th century. It’s called “Villa des Arts”. It houses some 70 apartments and studios. Obviously Cézanne, Renoir, Picabia, Signac among many others lived and worked here for shorter or longer periods.
It was rather recently supposed to be transformed into lofts and fashionable flats by some promoters, but was “saved” by the City of Paris and will fortunately after some modernisation remain a place for artists.
I was struck by the fantastic stairs in one of the buildings. They seem to have been brought here from some Exposition Universelle pavilion. If someone has better and more complete information, I would appreciate.
Thérèse found the confirmation of what I didn't find although I looked for it! She referred to an article in the French newspaper "Libération" (March 2006). It confirms that material from the World Fair (Exposition Universelle) 1889 (the Eiffel Tower one) has been used during renovation works 1889-90. This includes the stairs I show. They have been used as scenerey by different film makers, including by Fellini in the "The Clowns" (1970). Sincere thanks Thérèse!!