Extension of the DON BOSCO Institute to Wolluwe Saint Pierre

Last modified by the author on 24/06/2019 - 15:38

New Construction

  • Building Type : School, college, university
  • Construction Year : 2017
  • Delivery year : 2018
  • Address 1 - street : avenue du val d'or, 90 1150 WOLLUWE SAINT PIERRE, Belgique
  • Climate zone : [Cwb] Mild, dry winter, cool and wet summer.

  • Net Floor Area : 3 821 m2
  • Construction/refurbishment cost : 6 703 720 €
  • Number of Pupil : 684 Pupil
  • Cost/m2 : 1754.44 €/m2

Certifications :

  • Primary energy need
    20 kWhep/m2.an
    (Calculation method : )
Energy consumption
Economical buildingBuilding
< 50A
51 à 90B
91 à 150C
151 à 230D
231 à 330E
331 à 450F
> 450G
Energy-intensive building

Extension of the Don Bosco Institute - Construction of a new school building comprising 29 classes and 1 Alu-Pvc workshop and their additional premises. Passive building with high energy performance certified passive (zero energy).

Data reliability



Construction Manager

Contracting method

General Contractor

Owner approach of sustainability

This school, offering varied options in the industrial technical field and in the graphic arts, needed much more space to ensure a comfort worthy of the name to its students.

Since last September, this positive energy building has welcomed electricians, computer scientists and electronics engineers.

This concept, entirely prefabricated and with apparent structural elements, constitutes a real commitment for future generations with its green roofs and its rainwater recovery system.

Architectural description

See Development steps.

Energy consumption

  • 20,00 kWhep/m2.an
  • 50,00 kWhep/m2.an


    • Condensing gas boiler
    • No domestic hot water system
    • No cooling system
    • Nocturnal Over ventilation
    • Free-cooling
    • Double flow heat exchanger
    • Solar photovoltaic

Urban environment

    Building located in the city, close to public transport. Maintain existing trees for building integration and minimize visual impact for neighbors.


    insulating wood box

    Jonckheere projects


    Structural work / Passive system

    Prefabricated structure in insulated wood box

    Fast system integrating thermal insulation and airtightness. Lets you really "pack" the building and avoid thermal bridges and weak spots for airtightness.

Reasons for participating in the competition(s)


- le besoin en chauffage est de maximum 15 kWh/(m².an)

- le besoin en refroidissement est de maximum 15 kWh/(m².an)

- la fréquence de surchauffe du bâtiment au-delà de 25°C est de maximum 5% du temps d'occupation du bâtiment (critère de confort vérifié par une simulation thermique dynamique)

- l'étanchéité à l'air du bâtiment assure un taux de fuite au travers de l'enveloppe de maximum 0,6 renouvellement d'air par heure sous 50 Pa (critère vérifié selon rapport)

- la consommation en énergie primaire est inférieure ou égale à 90 - 2,5 x compacité (exprimée en KwH primaire/(m².an)

Building candidate in the category

Energy & Temperate Climates

Energy & Temperate Climates

Health & Comfort

Health & Comfort

Users' Choice

Users' Choice

Green Solutions Awards 2019 - Buildings

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Author of the page

Geoffrey Vermeulen

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Green Solutions Awards 2019 - Buildings