Germany’s first CO2-neutral renovated settler house opened

After a five-month construction phase, the transformation is complete and this 50-year-old traditional semi-detached house in the Wilhelmsburg district of Hamburg has been fully modernised and expanded to include a light and generously-proportioned extension. The goal is for the occupants to be self-sufficient in terms of energy.

The LichtAktiv Haus will be open to the public and available for events from early 2011. Thereafter, the house will be tested by a family for one year as part of the experiment. During the occupancy, sophisticated systems will be used to continuously monitor and record energy consumption and indoor climate conditions – all without placing any constraints on the family living there.

The Model Home 2020 project is an experiment by the VELUX Group to demonstrate that it is possible – even with today’s products – to link these three aspects, while also focusing on the needs of people. Model Home 2020 is a part of the VELUX Group strategy to take an active part in developing sustainable buildings for the future. It is the VELUX vision of how future buildings can be climate-neutral, comfortable and attractive places to live in through daylight and fresh air.

For more information on the Lichtaktiv Haus, click here. 


For more information on Velux Model Home 2020, click here.

The house was designed by:

  • Blueprint planning: TU Darmstadt FGee, Prof. Manfred Hegger
  • Concept: Katharina Fey (TU-Darmstadt)
  • Architects: Ostermann Architekten
  • Energy concept: HL-Technik, Prof. Klaus Daniels
  • Light concept: Prof. Peter Andres PLDA
  • Static: TSB-Ingenieure, Prof. Karsten Tichelmann
  • Partners: the VELUX Group – VELFAC, WindowMaster, Sonnenkraft
  • Cooperation-partners: Eternit, Gira, Grohe, Keramag, Knauf, Knauf Insulation, Nolte Küchen, Somfy

LichtAktiv Haus is the fourth out of six buildings in Europe to be constructed by the VELUX Group as part of the Model Home 2020 project.



Primary contact
Kathrine Westermann

Case location

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