The SO/ Paris hotel stands tall on a protruding piece of land on the right bank of the Seine River, once a thriving place for storing timber during river trade. From the hotel‘s perspective,the St. Louis Island and Cite Island, home to the NotreDame Cathedral, appear close, with a distance of less than one kilometer. The Bastille, once a symbol of authoritarian rule, no longer exists, but the bronze column commemorating the French Revolution is visible. In the vicinity of the hotel, there is now a quiet area that serves as a training ground for the National Guard cavalry, which can be seen from the rooms. The building where the hotel is located was built in the 1960s and has served for municipal and urban planning purposes for half a century. After a renovation, SO/ Paris now stands at a height of fifty meters, offering the best views on the island.

SO/ hotel brand is part of the Ennismore group, and SO/ Paris is its newly launched flagship property. Ennismore is an innovative hotel group that promotes an artistic and fashionable lifestyle and entered into a joint venture with Accor in 2021. The interior design of SO/ Paris is undertaken by the renowned RDAI design firm, known for their longstanding collaboration with Hermès.