Courthouse / Paris 1st arrondissement

Located on the Île de la Cité, the Paris courthouse occupies nearly one-fifth of the island's surface area. Trapezoidal in shape and covering four hectares, it is a vast complex of buildings constructed between the 10th and 20th centuries, which is currently undergoing renovation.

Paris, 1st arrondissement

France

Project owner

APIJ

Type of operation

Restructuring, restoration, and upgrading of buildings 2 and 5 to current standards

Mission(s)

Complete project management

Restructuring, restoration, and upgrading of buildings 2 and 5 to current standards

Asset valuation and restructuring study conducted in 2016

Building 2: DET in progress / Building 5: ACT in progress

Surface

13,700 m² (Building 2)

11,300 square meters (Building 5)

Amount of work

€70,500,000 excluding tax (Building 2)

Delivery

2026 forecast (Building 2)

2030 forecast (Building 5)

The seat of the monarchy for four hundred years, then the seat of the royal parliament, which was succeeded by the revolutionary tribunal during the Reign of Terror, it has been classified in its entirety as a historic monument since 1862. It underwent major transformations, mainly in the second half of the 19th century. While its judicial function has always been present, either alone or among other sovereign functions, making the Palace one of the few monuments to have retained part of its original function for ten centuries, it now houses numerous functions relating to three different ministries: Justice, Culture, and the Interior.

Overcrowded and poorly maintained during the 20th century, the courthouse is in very different states of repair depending on the location, both inside and out, ranging from the most advanced deterioration to the most recent restoration. In addition, uncoordinated interventions have ultimately trivialized heritage spaces with the widespread removal of moldings, old floors, and volumes.

Since 2015, the agency has been assisting the APIJ with numerous heritage, technical, and security studies throughout the Palais. The freeing up of nearly half of the space thanks to the new Batignolles building in 2018 provided the ideal opportunity to restructure and restore all six buildings that make up the Palais.

In 2022, this work led to the completion of the first phase of construction on Building 2, located in the southwest of the block, at the famous 36 Quai des Orfèvres. This project, launched in 2022 on more than 13,700 m² of floor space, involves the enclosure and roofing of the building, bringing it up to technical, fire safety, and accessibility standards, as well as the development of flexible tertiary and judicial spaces. Involving eight specialized companies, including seven specializing in historic monuments, the project is expected to be completed by 2026.

Located at the corner of Boulevard du Palais and Quai de l'Horloge, Building 5 houses the Conciergerie Museum, Ministry of Culture offices, and judicial services. The current project involves the restructuring and restoration of 11,300 m² of premises, complemented by the conversion of the attic space in Building 6 to create flexible offices that meet the functional requirements of a contemporary courthouse. In addition to bringing the building up to fire and accessibility standards, the project aims to improve comfort and energy performance by streamlining technical installations, including a central room in the courtyard of the Conciergerie. This project, which is expected to be completed by 2030, is also an opportunity to enrich our historical knowledge of the site through extensive archaeological excavations.

Courthouse

Hôtel de Jaucourt / Paris 1st arrondissement

Paris

Versailles

Great East