Thomas Rau

Complete Circular building

Liander day lightened 'streets'

Inside the building is amazing. So much light and space

Not new: wow it’s a complete circular building

How do you give four dated bunched offices a second life without wasting material? Simple: build circular. Energy Company Liander did it. We have seen it. And it’s an amazing ‘new’ future proof and circular building.

Circular building

Architect Thomas Rau (Germany, 1961) does not talk about sustainability. He wants to re-use materials: he wants to create circular buildings.

The old offices (eighties) didn’t fit anymore. Rau has given the complex a complete facelift.

Old offices are not discarded, but covered by an undulating roof

Therefore, the office complex is experiencing a miraculous rebirth. Not sustainability but the concept of circular building is celebrated in almost a religious manner; 80% of the old building has been recycled.

Nothing-is-New Principle

Circular building is more than reusing the existing structure. All added materials, such as the concrete tiles, furniture and the insulation material, are recycled products and materials.

  • The brown toilets are vintage (from 1985)
  • The discarded clothing from the mechanics has been recycled into insulation materials
  • The old outside office walls have been covered with strips of wood waste incinerators that have been rescued and with vertical green gardens

Glas Roof

Thanks to an undulating glas roof over the existing buildings, Liander now enjoys it’s a great new atrium that gives an identity to the building.

  • As a result, there complex features day lighted streets and squares around the old offices
  • That timber and the greenery creates a warm atmosphere
  • And the building is energy plus which means it’s producing more energy than is needed
  • Rau created with its 6500 square meter roof new and comfortable interior for Liander. The atrium is primarily a meeting space.

Facts & Figures



Thomas Rau architects
Founder: Thomas Rau

Amsterdam, the Netherlands
P. +31 20 419 02 02