Boulogne-Billancourt, France

Rehabilitation and extension

Type: Offices
Programme : Rehabilitation and extension
Year: 2007 - 2015
Status: Ongoing
Floor area: 79,525 m² SHON existing / after restructuring : 87,800 m²
Mission type : AMO and Project Management environment
Client: BNP Paribas Real Estate Development Real Estate Business ,
Architect: Dominique Perrault Architecture
cost:160 M€ HT
Performances: HQE exceptional and BREEAM excellent certifications

Presentation of the project
Rehabilitation and extension of Tours Pont de Sèvres .
Without erasing the past , the project contributes to a large-scale redevelopment of neighborhoods Keystone and Seguin Island , developing a tertiary center IGH along the first belt west of Paris and the Seine .

Environmental strategies
> 40 % reduction of energy consumption in the renovated part and 50% for the new part
> Connection to IDEX urban network consists of 64 % ( from 14% renewable energy and cogeneration gas
> Establishment of high performance equipment (CAP air- turbofan with hygroscopic recovery yield of 75 % rotary heat )
50 % saving in water
> Optimisation of the power of office lighting ( 6W / m²)
440 m² of parking bicycles
> According to the gradation and brightness of the presence
> Management of fresh air produced by CO2 sensors in meeting rooms ,
> 50% increase in green areas ( roofs )
> Sunscreens

> Rainwater harvesting