ALLIANDER
THE OLD BUILDING AS RAW MATERIAL BANK FOR THE NEW BUILDING
HISTORICAL AND PHYSICAL CONNECTION
Not a new construction, but a thorough renovation of its headquarters – originally built in 1992 – is what energy company Alliander wanted. The result is a sustainable make-over based on the idea that you can and should use raw materials differently. Circularity, with as little loss of raw materials as possible.
Over 80% of stripped material was re-used. The new interior was made from old furniture, and demolition rubble was used to fill new walls and pave the area around the building. Additionally, existing insulation was used to insulate the façade. About half of all stripped materials found their way back into the renovated building, the other half is going to be used in other projects. In one year, the 25,000 m2 building was renovated with new mezzanines, staircases, gangways and open offices based on principles of ‘the new way of working’
The renovated building encourages encounters. Where staff used to work behind partitions, now they are able to use one of the 700 workstations or one of the other 1600 seating options in the building. The entrance hall is freely accessible, creating a transparent working environment that is connected to its surroundings.
Features
• 25,000 m2 floor area • 6 storeys • 2-level underground parking garage • 700 healthy and safe workstations • 1600 seats
Particulars
• 81% recycled • 67% carbon reduction • 98% waste recycling • 80% energy reduction
CIRCULAR RENOVATION: HANDLING RAW MATERIALS DIFFERENTLY
Practically energy neutral
The new office building is ‘all electric’ and virtually energy neutral. This has been achieved by abandoning gas, fitting the atrium’s glass roof with integrated solar panels, and additional measures. All these measures resulted in an energy-generating, translucent and solar proof building. Geothermal heat and cold is used to heat the building throughout the year. In order to achieve this, energy is stored in the basement and managed according to energy demand and surplus of the building. To make sure the (re)use of raw materials is accurately tracked, a materials passport was used.