The wall on this building, Quai de Valmy, along the Canal Saint Martin, has been used for street art for a number of years.
After the tragic Paris 2015 events, the wall was for quite some time covered with this simple “Fluctuat nec mergitur” - “Tossed by the waves but never sunk”, the Paris motto since 1358. (See previous posts here and here.)
The wall is now since a while back in “normal street art use”. The present, enormous, complete wall decoration – for how long? – is by Da Cruz. A great traveler with artwork left a bit everywhere in the world, Da Cruz is really a local artist, as I understand born and living close to the Canal. You can read more about him here, here, here and here.
Otherwise there is not too much street art along the Canal, rather a bit of tagging and some camouflage, hiding blind walls…