Renovation of the Pacific Tower at La Défense
Last modified by the author on 15/03/2018 - 14:32
Renovation
- Building Type : High office tower > 28m
- Construction Year : 1992
- Delivery year : 2017
- Address 1 - street : 11-13 cours valmy 92800 PUTEAUX, France
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 60 715 m2
- Construction/refurbishment cost : 47 000 000 €
- Number of Work station : 4 600 Work station
- Cost/m2 : 774.11 €/m2
Certifications :
-
Primary energy need
88 kWhep/m2.an
(Calculation method : RT existant )
With a surface area of approximately 53,000 m², the "PACIFIC" Tower was completed in 1992 and is located in the business district of Paris-La Défense.
Originally named "JAPAN TOWER", the tower was designed by architect Kisho Kurokawa and symbolizes the Franco-Japanese rapprochement. The building is inspired by both traditional European architecture and Japanese style. Its slender circular arc shape, consisting of two wings connected by a multi-storey bridge, is reminiscent of European architecture, while the tea room and Japanese garden on the top floor are reminiscent of the architect's origins.
Acquired in June 2013 by the group TISHMAN SPEYER, this multi-tenant tower has been the subject of several phases of renovation depending of the different tenants since 2014. The last phase of work was received in October 2017 and concerned the renovation of 17,000 m² of trays (more than 30% of the total area).
The tower is now completely renovated and its interior design redesigned to create workspaces, occupant services and relaxation meeting the expectations of users more demanding in terms of functionality, comfort and environmental quality.
Sustainable development approach of the project owner
The PACIFIC Tower is the subject of an environmental approach aimed at obtaining and maintaining the HEQ exploitation label. This certification, achieved in 2016 with the "Excellent" rating for the intrinsic quality of the building and for the quality of its management (Axis 2), testifies to the building's performance in terms of its impact on the environment, energy consumption, on the comfort and health of the occupants. This approach builds on the positive experience and know-how of TISHMAN SPEYER in sustainable development, which focuses on applying environmentally responsible practices globally. The group is developing eco-responsible management practices and methods that focus on energy savings, water conservation and waste reduction.Architectural description
The PACIFIC Tower is a high-rise building with 26 levels of superstructure and 3 levels of infrastructure. It develops a total surface SHON of 60.715 m² and a total useful surface of 52.972 m². The building consists of 2 separate towers named "Paw East" and "Paw West", which meet by a bridge from the 19th floor. It has two main facades: the first is flat to the northwest, the second is curved southeast.See more details about this project
Stakeholders
Contractor
Tishman Speyer Pacific SCI
Philippe Minh
http://fr.tishmanspeyer.com/properties/tour-pacificDesigner
Kisho Kurokawa
http://www.kisho.co.jp/Assistance to the Contracting Authority
H3C Energies
Lucile Pothier
http://www.h3c-energies.com/Certification company
Certivéa
01 40 50 29 09
http://www.certivea.frEnergy consumption
- 88,00 kWhep/m2.an
- 149,00 kWhep/m2.an
- 136,00 kWhep/m2.an
Envelope performance
Systems
- Urban network
- Urban network
- Urban network
- Double flow heat exchanger
- No renewable energy systems
Smart Building
Urban environment
Product
Deployment of LED technology for lighting
Asteri
http://www.asteri.fr/HVAC, électricité / lighting
The luminaires selected for the office trays are LED units with a unit power of 40 W. They are equipped with photosensitive cells allowing a gradation of the brightness according to the needs. Individual control boxes also allow users to control the lighting.
Reference: DINO LED PSF TE 40W VO
Implementation of transmitters equipped with low consumption motors
CIAT
+33(0)4 79 42 42 42
http://www.ciat.fr/HVAC, électricité / heating, hot water
The selected fan coil units are equipped with High Energy Efficiency (HEE) motors, which are low consumption motors that can reduce energy consumption by up to 80%. They also have other advantages: more flexibility in the choice of speeds, longer life, greater comfort ...
Reference: CONFORT LINE 14B HEE - model U
These fan coils are equipped with hot and cold water batteries. This is a recessed ceiling model, positioned in a regular pattern to facilitate the development of trays.
Implementation of smart meters
Itron & Siemens
https://www.itron.com/fr/technology/product-services-catalog/products/1/8/a/flostar-m
http://w3.siemens.com/mcms/sensor-systems/fr/instrumentation-de-process/mesure-de-debit/induction-magnetique/champ-constant/transmetteurs-de-mesure/pages/sitrans-f-m-mag-5000.aspx
Establishment of remote reading of all meters, present and added, on the existing PCVUE supervision. The supervision makes it possible to visualize the raw index of each meter, to calculate the daily, monthly, annual consumption. The export of all these data is possible over the desired period. In addition, alarms in case of overshoot have been set at the water meters of the consumer stations, compared to a high threshold according to defined time periods. These alarms can quickly identify a water leak and locate it on the site.
Water management
- 18 855,00 m3