Timeline

Heritage classified

Origin and history

The reservoirs of the Two Gates and their outbuildings are a historical monument located in Marly-le-Roi, in the Yvelines. This site is an integral part of the Marly National Estate, a heritage complex protected by decree in 2024. The interior parts were classified as Historic Monuments, highlighting their architectural and historical importance.

The National Domain of Marly, of which these reservoirs are a component, was officially established by Decree No. 2024-472 of 24 May 2024. This classification includes full protection, reflecting the desire to preserve this emblematic heritage of the Île-de-France region. The main address of the site is indicated as the 27 Route de Versailles, although approximate GPS coordinates suggest a close location in Louveciennes.

In Île-de-France, hydraulic monuments such as these reservoirs often played a key role in water management, essential for the gardens, fountains and domestic needs of royal or aristocratic residences. In Marly-le-Roi, this type of infrastructure is part of a tradition of natural resource development, linked to the history of the region's large estates and landscape developments.

Today, the two gate reservoirs, although protected, do not have accurate information in available sources about their accessibility to the public or current use. Their recent ranking suggests a late recognition of their heritage value, in a context where the preservation of historic infrastructure becomes a national priority.

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