'Treehouses' Development in Hamburg, Germany

In the Alsterdorf district of Hamburg storeys were added to the housing development, thereby almost doubling the existing living space of 9,600 m² with an additional 8,600 m². 47 family units consisting of well-appointed three-room and four-room apartments with a floor area of between 70 and 150 m² were created without any significant impact on the surrounding planted areas, trees, open areas and playing areas.


  • Wood-panel vertical expansion and energy-efficient modernisation
  • Project completed in 2010
  • 32,000 m² fermacell Gypsum Fibreboard, 5,000 m² fermacell Flooring Elements, 2,000 m² fermacell Powerpanel H2O, 350 m² fermacell Powerpanel TE