Eco Towers Architecture for Hamburg by Greeen! Architects

These are Eco Towers designed by Dusseldorf-based firm Greeen! Architects for the Building and Environment Authority (BSU) of Hamburg. This architecture sse for Offices, Library, Restaurant, Exhibition.
The building is incredibly energy efficient / extreme low primary energy needs 72% less energy than the EnEV 2007 energy standards, resulting in a very low annual carbon footprint of 18,9 kg CO2/m²a and meaning a savings of more than 1.700 tons of CO2 per year.
The building aims to receive the Gold certificate from the German Sustainable Building Council (DGNB) which analyses the project through three key sustainability aspects: Life-cycle cost analysis, ecology and social-cultural analysis and thermal, acoustical and visual comfort analysis. [via]

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