Usine élévatoire de Saint-Nazaire, Pumping station factory in Petit-Maroc district, Saint-Nazaire, France.

The Usine élévatoire de Saint-Nazaire is a long industrial building with grey walls and a dark grey pitched roof in the Petit-Maroc port zone. Tall windows and doors along its front are framed by alternating red and white brickwork, with a projecting gabled section at the left end and a taller gabled section at the right. A tall, reddish-brown brick chimney banded by horizontal ridges rises behind the right portion.

The station began operations in 1911 as a crucial component of Saint-Nazaire's modern port infrastructure. It ceased functioning in 1993 after newer technologies replaced the original hydraulic systems.

The structure shows how port infrastructure shaped industrial development in early twentieth-century France and made modern harbor operations possible. Today it stands as a physical reminder of the technical solutions that supported maritime commerce.

The site is near the Petit Maroc transit stop on bus line U4 and can be reached on foot from the city center. The location sits directly along the waterfront and offers views of the port zone.

In 2019 the Nantes operators of the Brassés and the Sōzō Hôtel were selected to convert the building. Architect Philippe Barré planned a boutique hotel of about forty rooms in a six-storey extension beside the original building, with a brasserie.