Alzingen School and Kindergarten / Luxembourg

Last modified by the author on 10/10/2016 - 11:07

Extension + refurbishment

  • Building Type : Preschool, kindergarten, nursery
  • Construction Year : 2013
  • Delivery year : 2013
  • Address 1 - street : rue de l'école 5870 ALZINGEN, Luxembourg
  • Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

  • Net Floor Area : 1 666 m2
  • Construction/refurbishment cost : 4 304 000 €
  • Number of Children : 88 Children
  • Cost/m2 : 2583.43 €/m2
  • Primary energy need
    126.6 kWhep/
    (Calculation method : RGD du 31 août 2010 - bâtiment fonctionnel )
Energy consumption
Economical buildingBuilding
< 50A
51 à 90B
91 à 150C
151 à 230D
231 à 330E
331 à 450F
> 450G
Energy-intensive building

The building of Alzingen school, built in 1968, needed to be renovated and compliant to current standards, particularly in terms of accessibility and energy performance. Following exchanges with all stakeholders, we have reached the following program:

• Renovate and clean up the building from an energy and environmental point of view

• Assign Alzingen School in the early teaching and cycle. 1.

• Add a kindergarten with food production.

• Make schools accessible to people with reduced mobility.

• Renovate the gym / multipurpose hall

• Adapt the hall additional rooms to the needs of the clubs that use it.

• Add a music studio, a library, a conference room and a DIY studio.

Data reliability



Owner approach of sustainability

Willingness to bathe the children in a natural and inspiring environment to show them the way to face their future responsibilities.

Architectural description

Innovative ecological concepts have been applied in the renovation of an existing school by integrating plant facades and a photo-voltaic glass roof.

Energy consumption

  • 126,60 kWhep/
  • 194,20 kWhep/
  • RGD du 31 août 2010 - bâtiment fonctionnel

  • -45 196,00 kWhef/
  • Thermal final energy demand: 11549
    Electrical final energy demand: -20,266
    Whole final energy demand: -8717

Envelope performance

  • 0,29 W.m-2.K-1
  • 0,45
  • EN 13829 - q50 » (en m3/h.m3)

  • 1,50


    • Condensing gas boiler
    • Solar Thermal
    • No cooling system
    • Double flow
    • Solar photovoltaic
    • Solar Thermal
    • Heat pump


    Vegetated facade

    Plant Design

    Aurélie Mertens ; 15, rue Fernand Bernier B-1060Bruxelles

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    Vegetated facade

    Vegetated facade

Construction and exploitation costs

  • 6 250 000

Urban environment

The building is located in Alzingen, in the town of Hesperange, which established the link between the nature with agricultural fields on one side, and on the other side the south of the capital, Luxembourg city, with some constructions of the old fortress.

Building Environmental Quality

  • indoor air quality and health
  • biodiversity
  • acoustics
  • comfort (visual, olfactive, thermal)
  • energy efficiency
  • renewable energies
  • products and materials

Building candidate in the category

Bas Carbone

Bas Carbone

Grand Prix Rénovation Durable

Grand Prix Rénovation Durable

Coup de Coeur des Internautes

Coup de Coeur des Internautes

Green Building Solutions Awards 2016

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Author of the page

Patricia Streber


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Green Building Solutions Awards 2016