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1-3 Caumartin

1 Rue de Caumartin, 75009 Paris

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Steeped in history, the private mansion house on 1-3 rue de Caumartin, in Paris' 9th arrondissement, was built in the 18th century by the architect André Aubert.

Located at 1–3 rue de Caumartin, this centrally positioned address is just a five-minute walk from Madeleine and Opéra stations. Nestled in the vibrant 9th arrondissement, the building benefits from a lively environment surrounded by shops and restaurants.

Office space available from Q3 2025

A full floor on the 3rd level and a half floor on the 4th will be available for lease.

In total, 737 sqm of office space will be offered from Q3 2025, with units divisible from 259 sqm. These flexible, functional spaces are designed to meet the needs of demanding occupiers.

A historic private mansion

Built in the 18th century by architect André Aubert, the property was once home to Charles Marin de la Haye and hosted Mirabeau in 1789. At the time, the mansion featured a rooftop garden adorned with water features, statues, rocks, cascades, and columns.

Its stone façade, distinguished by a rotunda, is listed as a historical monument. It features sculpted medallions and semi-relief figures that give it a truly unique identity.

The strengths of this space

Location

In the 9th arrondissement, less than five minutes from Madeleine, Auber, and Opéra stations.

Architecture

A private mansion house built in 1784 by the architect André Aubert. Communal areas of the highest standard. Stately rooms with parquet flooring, mouldings and great ceiling heights.

Surface

737 sqm divisible from 259 sqm, located on the 3rd and 4th floors. Available from Q3 2025.

Commitments, labels and certifications

Discover our commitment to high environmental quality

As part of our CAN0P-2030 (Carbon Net Zero Plan) commitment, we're aiming for carbon neutrality by 2030. Since 2017, we've already reduced our CO₂ emissions by 40%. To go even further, we've rolled out an energy sobriety plan to optimize energy consumption in all our buildings, with the help of our Energy Manager from Advizeo, and our maintenance teams.

The key initiatives of this plan are

• Task forces active since July 2022, helping make energy savings on each site of between 10 and 35%.

• Real-time monitoring platform: continuous consumption watch via remote monitoring and temperature sensors, with instant adjustments where required.

• Optimized temperature recommendations: 19°C in winter, 26°C in summer across all workstations, reduced to 14°C if unused.

This initiative allows us to make progress toward our goal of carbon neutrality while effectively reducing our energy footprint.