The Rock

The Rock

Offices
Amsterdam, Netherlands - Build completed in 2009

Erick van Egeraat Office Tower

(designed by) Erick van Egeraat as Architects

The 90m high building is an ambitious programme of a vibrant, high-density mixture of offices, housing, retail and public space. The urban concept is based on a vertical layering structure with the anatomical analogy of legs, torso and head. Both an innovative composition of shifted volumes and a transformation from a light to heavy materialization, creates an expressive landmark which appears different from every angle. The upper floors resemble a rock that floats on the glass base.


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The Erick van Egeraat office tower, also known as The Rock, is part of an expressive high-rise urban development south of Amsterdam, named Zuidas. Located in the proximity of the city centre and with direct access to the urban network of public transport and highways, the project incorporates the potential of this unique location. The ambitious programming of a vibrant, high-density mixture of offices, housing, retail and public space, designed by nine international architects, all contribute to an exceptional development of metropolitan scale. The urban concept for this location as developed by De Architekten Cie. is based on a vertical layering structure with the anatomical analogy of legs, torso and head. The Erick van Egeraat office tower challenges this masterplan further and proposes to create an explicit tactile and emotional experience out of the stacked block structure. Both an innovative composition of shifted volumes and a transformation from a light to heavy materialisation, it creates an expressive landmark which appears different from every angle.


Each of the three sections of the building reveals its own character and material expression and offers space suited to potentially different tenant requirements. The lower part is transparent to allow light deep into the building and stimulate interaction with the direct surroundings. The upper part is characterised by natural stone layers composed in a façade pattern which creates a variety of openings and panoramic views. Both parts are connected by a combination of transparent and printed glass elements and aluminium panels, forming a subtle transition between the two.

Egeraat

Architectenweb Magazine as Media

In this design, uniformity and irregularity go hand in hand. The lower, middle and top sections - a classic trisection was prescribed in the urban plan - are all made up of 1.8 by 3.6m panels, The lines, colors, materials and details of the façade create a contrast with the interior.


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Last year, a new icon arose among the high-rise buildings by Toyo Ito, Rafael Viñoly, SOM, UNStudio and Architekten Cie. The Rock is a 90m high office block designed by Erick van Egeraat. The upper floors resemble a rock that floats on the glass base. In this design, uniformity and irregularity go hand in hand. The lower, middle and top sections - a classic trisection was prescribed in the urban plan - are all made up of 1.8 by 3.6m panels. An aluminium construction was attached to the concrete frame. Then, the panels were mounted on the aluminium construction with bolts. However, this uniformity in construction does not show in the façade. Aluminium profiles and irregularly spaced vertical fins emphasise the verticality of the building without forming a pattern. The horizontal seams are narrow black strips that are barely visible. The irregularity is also caused by the design of the panels. The sections contain glass, aluminium or stone panels. Silk-screen prints in various patterns- partially - cover some of the glass and aluminium panels. However, the print is not applied randomly: the corbels and the locations of the apertures are adjusted to the orientation so that sun screens are unnecessary. In addition to the basic panels, there are special panels, separate corner panels and panels for the corbels. The diagonal lines and the corbels emphasise both the sheer mass and the irregular nature of the rock. The rock-like sections consist of composite sandwich panels with a Serpentino Verde stone surface. The panels weigh 30kg/m². As the weight density of natural stone is 2,800kg/m³, massive natural stone panels would have made the façade three times heavier. The lines, colours, materials and details of the façade create a contrast with the interior. The 'invisible uniformity' allows for a flexible lay-out, one of the principles of the design. Dividing walls can be placed at 1.8m intervals. Another principle was sustainability which was achieved by the use of durable materials.

Tallest Full Vision Revolving Doors in the World.

Bauporte Design Entrances BV as Manufacturers

Bauporte Design Entrances BV designed, manufactured, installed and performed the maintenance to the doors; “The tallest revolving doors in the world” have been installed at the main entrance.

The fully automatic, curved night door locks is in a sliding manner across the same height of 7,100 mm and bolts automatically while the other 2 Royal Full Vision TALL revolving doors have a diameter of 3400 mm and a height of 4400 mm respectively 3300 mm


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The office tower Mahler 4, also known as The Rock, is part of an expressive high-rise urban development south of Amsterdam, named Zuidas. Located in the proximity of the city centre and with direct access to the urban network of public transport, airport and highways, the project incorporates the potential of this unique location.

The leading Dutch law firm De Brauw Blackstone Westbroek chose the Erick van Egeraat office tower, a landmark in the Mahler4 area at the prestigious Zuidas to be the new company’s headquarters.


In order to match the needs and demands of De Brauw Blackstone Westbroek, being the sole tenant of the building, several amendments were made to the program. The specific programme, combined with the special design and the carefully selected materials, has resulted in a unique building which optimally matches the need of De Brauw Blackstone Westbroek.


Bauporte Design Entrances BV designed, manufactured, installed and performs maintenance to the 3 Full Vision revolving doors.


At the main entrance “the tallest revolving doors in the world” have been installed. The revolving doors have a diameter of 3400 mm and an awesome walk-through height of 7100 mm and are constructed entirely from glass. In-ground heaters are built into the floor to prevent draught. In addition, the building is properly sealed by the Bauporte revolving doors, since the fully automatic, curved night door locks in a sliding manner across the same height of 7,100 mm and bolts automatically. The other 2 Royal Full Vision TALL revolving doors have a diameter of 3400 mm and a height of 4400 mm respectively 3300 mm.

CRS Rockpanels

Poly Products as Manufacturers

Poly Products has produced 3200 sq m of unique lightweight rock panels for the facade cladding. These lightweight panels made sure the construction of the building could remain light as the panels are strong enough to withstand the forces and are easily fixed.


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For this project Poly Products has produced 3200m² of unique lightweight rockpanels for the cladding of ‘the Rock’, in Amsterdam. On the massive rock façade there are almost no identical panels! These lightweight panels (30kg/m²) made sure the construction of the building could remain light too, as the panels are strong enough to withstand the forces and are easily fixed. The real rocks in the top layer of the panels make sure the ‘heavy’ looks of the top of the building that the architect intended are preserved.

The Rock

Bolidt as Manufacturers

The Bolidtop® finishes consist of extremely durable materials and are applied to a substantial number of sq m in the building. The restaurant features the Bolidtop® Jewel and the kitchen has Bolidtop® 700 floor finish.


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The buildings at Amsterdam’s South Axis are all part of a master plan for the area. This masterly plan developed by Architekten Cie. contained guidelines for a classic design: a deep, wide foot, a middle part and a crown. No less than 8 architects have each interpreted this assignment in their own way and this has resulted in a unique collection of towers. There is, however, only one that stands head and crown above the rest and that is ‘The Rock’ designed by Erick van Egeraat. The Rock lives up to its name with elegance. This 90 metre high geometrical masterpiece has façades slanting forward and backwards. Aluminium and glass clad façades in the middle part lead the way up to the Rock, the top of the tower made out of natural stone and polyester concrete. Durable is synonymous with costly, says Erick van Egeraat. He prefers to use generous dimensions, high-quality materials and looks for durability, but not in technical and compact solutions. The texts on the façade are excerpts of Dutch law and a unique reference to the large law firm that rents The Rock as its office.


The interior, therefore, had better do justice to the imposing exterior. The inner spaces are also a product of Van Egeraat’s mind. Many of these spaces have been fitted with Bolidt flooring systems. They are a perfect match with Van Egeraat’s view on durability. The Bolidtop® finishes consist of extremely durable materials and are applied to a substantial number of square metres. It requires reaching slightly deeper into ones pockets initially, but the quality remains as good as new for decades and the total life is just about endless. Both visitors and employees enter the building through the central hall. So this is typically a place that needs to have a suitable appearance and where good impressions can be created. The Bolidtop® 525 always succeeds in achieving just that. The restaurant has been transformed into a gem: the Bolidtop® Jewel ensures each day that the hard-working lawyers can have a bite to eat in style. A bite that is prepared in the spacious kitchen with its Bolidtop® 700 floor finish. It can be rightfully said that The Rock has been beautifully finished. Inside and out.