De Watergroep Office Building

De Watergroep Office Building

Evr-Architecten

De Watergroep Office Building
© Stijn Bollaert

ARCHITECTS
Evr-architecten

PROJECT ARCHITECTS
Bart Verstappen, Heleen Rottiers

ARCHITECTS
Mathieu Verougstraete, Céline Dieleman, Wart Thys, Thijs Urban, Simon Vermote, Thomas Stoffelen, Giorgi Chikovani

TECHNIQUES & BREEAM
Boydens Engineering

LANDSCAPE DESIGN
Denis Dujardin

BIODIVERSITY
Corridor

MANUFACTURERS
Vande Moortel

STABILITY
Dexco

ACOUSTICS
Blasco

SUSTAINABILITY
Evr-architecten

ECOLOGY
Corridor

PHOTOGRAPHS
Stijn Bollaert

AREA
4480 M²

YEAR
2023

LOCATION
Ghent, Belgium

CATEGORY
Offices, Office Buildings

De Watergroep Office Building
© Stijn Bollaert

The new office building for 'De Watergroep' in the Koning Boudewijnstraat, near St. Peter's Station, consists of a four-story main building and a meeting hub at the back of the site.

The complex stands on an underground parking area. Within the urban context, this project provides for maximum but elegant densification.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

The concept of the facade starts from a thorough reading of the street elevation that responds to the horizontal layering and vertical articulation of the houses in the surroundings.

The horizontal articulation is incorporated in the clear plinth and in a more subtle way in the brickwork and the position of the joinery and parapet in the lintels.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

The vertical articulation, the division on the scale of the large residential buildings, was sought through the green facade centrally on the facade.

Unlike in the former office building, a conscious decision was made to lower the floor pass to create views and vistas in the courtyard. By doing so, the office becomes more involved with the neighborhood.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

The main volume facing the street was conceived as a multi-use office unit divisible for each floor; the garden volume contains all meeting amenities, a cafeteria, bicycle storage and sanitary facilities. Both volumes are connected by a patio and a glazed connecting axis.

The office platforms were designed to allow for different office configurations. When integrating the techniques, an open space effect and the classic functioning of individual offices were considered without adapting the techniques for this purpose.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

A modular system was chosen where walls can be placed or removed at predetermined points. All entrances for pedestrians, cyclists and cars alike were brought together in one large, covered corridor.

This generous access offers the casual passer a beautiful vista of the new green interior area designed by Denis Dujardin.  The patio is a “tranquil” and green space and includes a spacious terrace that connects to the meeting facility.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

A new entrance was provided for the gardens of the restaurant De Gouden Klok. The project is a replacement for a run-down office on a completely paved site. During the design of the new building, high priority was consciously given to sustainability.

As a result, the building was awarded the BREEAM Excellent label. Within the context of sustainability, we strongly focused on how to improve the biodiversity of the site.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

We no longer wanted the building to be a paved island within the building block but a green island that added value to the surrounding homes and offices.

Together with Corridor cvba, we explored how to improve the ecological footprint of the site.

Corridor conducted a site analysis of the existing situation and formulated several recommendations for the function of greening and biodiversity.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

This analysis revealed that we should focus on two bird species: the swift and the black redstart. Several nesting boxes were integrated into the architecture.

The garden on the parking lot is a full-fledged roof garden with a substrate layer up to 1m thick. All other roofs are green roofs.

In addition, the street elevations and some facades in the interior areas have zones for climbing plants. For the most part, flowers were chosen. These attract insects, which in turn attract birds.

De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert

On the roof gardens designed for the project, efforts were made to avoid biomass transport. This includes avoiding cutting, sawing, and pruning as much as possible.

In addition, an oak tree trunk was placed on one of the flat roofs that can continue to rot, contributing to the biodiversity of this petrified building project.


De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert
De Watergroep Office Building
© Stijn Bollaert


De Watergroep Office Building
Elevation 1
De Watergroep Office Building
Elevation 2
De Watergroep Office Building
Section 1
De Watergroep Office Building
Section 2


De Watergroep Office Building
Ground Floor Plan
De Watergroep Office Building
1st Floor Plan
De Watergroep Office Building