ECO-Towers and Office building for the building and environement
authority (BSU)The new office building for the building
and environment authorities (BSU) will raise approx. 5km south to
Hamburg‘s city center next to a highway and trainway, as well as, south
to the planned landscape exhibition IGS for the year 2013.The project provides
several public areas next to office spaces for almost 1400 persons. The
city model, an exhibition area, a restaurant and the traffic
departement, the building permit department and a library are located on
the groundfloor.Especially with the
citymodell, the exhibition area and the restaurant the new BSU building
wants to interact with the neighborhood.The accessibility to the
building for the public and the creation of informal and communicative
meeting points are the leitmotiv of this design.All offices are naturally
ventilated and have the same spatial qualities all over the building.
Through extreme low primary energy needs (72% below EnEV 2007) the
building obtains an excellent carbon footprint of only 18,9 kg CO2/m²a meaning a savings
of more than 1.700 tons of CO2 per year in reference to a comparable standard
office building.As a visible sign for
energy efficiency awareness of the building‘s owner the building
recieves the european Green Building certificate tag. Furthermore,
through the employment of ecological and recyclable building materials
(renunciation of composite materials and especting eco-labels as the
FSC, etc.) and the consideration of other aspects of interest the
building aims for the Gold certificate from the German Sustainable
Building Council (DGNB).
The DGNB certification
analyses the building through three key sustainability aspects:
Life-cycle cost analysis, ecology and social-cultural analysis and
thermal, acoustical and visual comfort analysis.