Laboratoire de la Marine, Naval laboratory building on Boulevard Victor, 15th arrondissement, Paris, France

Laboratoire de la Marine is a research and validation facility for naval construction projects located at the intersection of Boulevard Victor and Avenue de la Porte-de-Sèvres in Paris. The building was designed in 1932 by architects Auguste and Gustave Perret and serves as a testing laboratory for marine construction designs.

The facility was founded in 1895 to review and validate naval construction plans from French arsenals and private engineers. Over time, it evolved into a modern research center that advanced marine technologies and construction methods.

The building is known for its curved corner facade in grey stone, with a rusticated ground floor and a projecting upper section topped by a metal railing. At street level, a blue sign with white lettering reads "PORTE DE SÈVRES", marking the corner of Boulevard Victor and Avenue de la Porte-de-Sèvres.

The Perret building stands at the corner of Boulevard Victor and Avenue de la Porte-de-Sèvres, in the 15th arrondissement; the street-level blue sign reading "PORTE DE SÈVRES" marks the corner. It is an inscribed monument historique, so it is seen from the public sidewalk rather than visited inside. Part of the former laboratory's installations were absorbed into the Hexagone Balard complex nearby.

The Perret building dates from 1932, but the naval construction service it housed had been installed in the Marine Laboratory in the 15th arrondissement since 1906. At the start of the 21st century, part of the site's facilities was absorbed into the Hexagone Balard defence complex.