“We said to the client, ‘Let’s bring back what will be demolished but develop it further’” explains Winy Maas, architect and co-founder of MVRDV. “Crystal Houses make space for a remarkable flagship store, respect the structure of the surroundings and bring a poetic innovation in glass construction. It enables global brands to combine the overwhelming desire of transparency with a couleur locale and modernity with heritage. It can thus be applied everywhere in our historic centres.”

After conceiving the initial idea MVRDV worked closely with a number of partners to develop the technologies to make it possible. Solid glass bricks were individually cast and crafted by Poesia in Resana, near Venice. Research undertaken by the Delft University of Technology, in partnership with engineering firm ABT and contractor Wessels Zeist, led to the development of structural solutions and fabrication techniques, with the use of a high-strength, UV bonded, transparent adhesive from Delo Industrial Adhesives in Germany to cement the bricks together without the need for a more traditional mortar.

Six to ten experts worked every day for a whole year in a place that bore more resemblance to a laboratory than a construction site. Due to the sensitivity of the materials, an extremely high level of accuracy and craftsmanship was required and a technical development team was onsite throughout the process. Since this construction is the first of its kind, new construction methods and tools had to be utilised: from high-tech lasers and laboratory grade UV-lamps, to slightly lower-tech Dutch full-fat milk, which, with its low transparency, proved to be an ideal liquid to function as a reflective surface for the levelling of the first layer of bricks. Despite its delicate looks, strength tests by the Delft University of Technology team proved that the glass-construction was in many ways stronger than concrete. The full-glass architrave, for instance, could withstand a force of up to 42.000 Newton; the equivalent to two full-sized SUVs.

The development of new construction methods unearthed additional possibilities for future building, such as the minimisation of waste materials. In essence, all of the glass components are completely recyclable. Waste materials from the project, such as imperfect bricks, could simply be (and were) melted down and re-moulded or entirely repurposed. Such is also true for the entire façade itself, once the building has reached the end of its life span, the whole facade can be melted down and given a new life. The only exceptions to this rule are added features which ensure the security of the building, such as a concrete ram-raid defence plinth, hidden in a blend of reflective and translucent materials and built to withstand the force of a car crashing into the building. Repair-protocols were developed in the event of any damage, allowing for the replacement of individual bricks.

With a façade made primarily out of glass it was important to ensure that energy requirements were supplied through renewable sources. Therefore, the building was designed around a ground source heat pump, its pipes leading up to 170 metres underground, allowing for an optimal indoor climate throughout the year. A crucial element when dealing with delicate, sophisticated detailing while striving for a proper energy balance at the same time.

MVRDV was founded in 1993 by Winy Maas, Jacob van Rijs and Nathalie de Vries. The Agency realizes studies and projects in the field of architecture, urban design and landscape architecture. The work of MVRDV is published worldwide and has obtained several international awards. The monographic publications FARMAX (1998) and KM3 (2005) and Buildings (2015) illustrate the work of the Rotterdam office that also develops software for architecture and urban planning. The 140 architects, designers and employees of MVRDV create projects in a multidisciplinary collaborative design process and apply innovative and sustainable technologies. 

MVRDV Rotterdam
Dunantstraat 10
3024 BC Rotterdam, the Netherlands
+31 (0)10-4772860
https://www.mvrdv.com>

See the video by Warenar | Real estate Amsterdam
The making of Crystal Houses in Amsterdam