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Elegance and functionality in La Défense
Elegance and functionality in La Défense
Project NE.ST
Project NE.ST
The architectural world is witnessing the rebirth of obsolete buildings and spaces through renovation projects focused on energy efficiency and adaptability to modern needs. An example of this trend is the NE.ST project, a building in Courbevoie, in the heart of the La Défense business district, which has undergone a major renovation.
The project was developed by Bouygues Immobilier with input from the renowned architectural firm 163 Ateliers and was recently acquired by Perial Asset Management on behalf of SCPI PF Grand Paris. The building, dubbed "NE.ST - New State of Life," has been transformed into a shining example of how to add value to a building from a low-carbon perspective. In addition, the NE.ST project is perfectly aligned with the current needs of occupants in terms of services and comfort.
One of the main features of NE.ST is its ability to offer flexible space planning, with divisible offices covering about 1,300 square meters. In addition, 77 percent of the offices enjoy natural light, making the work environment more pleasant and stimulating.
Another noteworthy aspect is the parking lot, which has 153 parking spaces spread over three levels, all equipped with electric charging stations. In addition, there are numerous bicycle stations, promoting a sustainable lifestyle among occupants.
Commitment to the environment is evident throughout the project, from the high level of energy efficiency to the high-quality environmental certifications, including HQE Green Building and BREEAM Very Good. In addition, the building's main facade is a masterpiece of design and thermal efficiency, at 65 meters long and 38 meters high, which contributes to the building's unique architectural identity.
One of the most interesting aspects of NE.ST is its focus on the thermal and energy efficiency of the building. This was achieved through the use of individual comfort units (UtCI) integrated into the façade. These units are responsible for renewing air without the need for a duct system, recovering thermal energy and providing heating and cooling to the building. In addition, the system provides direct air intake from outside, requiring close coordination with the building's heating system.
A second innovative aspect of the project is the integration of aluminum slat blinds, which are automatically managed by the building's technical management system (BMS). These elements allow flexible control of interior lighting and temperature, contributing to the building's overall energy efficiency.
The facade in the building's courtyard consists of a total of 530 blocks, each measuring 3,350 mm wide by 3,000 mm high, and was laid between the vertical slabs of the ninth floor. On the existing part of the building, which is circular in shape and on the eighth floor, the prefabricated facade was installed externally in a perforated structure.
The extension rests on a plinth on the ground and second floors, consisting of facades that wrap around the building and extend under the porch to Rue Louis Blanc. These façade systems were also used for another significant element of the project: the overlap of the last three units at the attic. These floors, from the ninth to the eleventh, consist of a metal structure connected by a metal roof and are completely open to the outside through the façade system with glazed elements measuring 2.5 meters high by 2 meters wide.
CUSTOMER
Bouygues Immobilier
LOCALITY.
Courbevoie
France
DESCRIPTION
Unitized facade
Continuous facade
Uprights and transoms
Coatings
Aluminum window frames
7,192 sq. m.
DESIGNER
Agence 163 Ateliers
VP&Green engineering
AIA Management
YEAR
2021
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