Domus IN 201903

1 room - 30m^2

2 rooms - 46m^2

2 rooms - 57m^2

3 rooms - 58m^2

1 room - 30m^2

2 rooms - 47m^2

2 rooms - 57m^2

3 rooms - 59m^2

2 rooms - 42m^2

2 rooms - 48m^2

2 rooms - 58m^2

3 rooms - 75m^2

3 rooms - 80m^2

5 rooms - 89m^2

6 rooms - 105m^2

4 rooms - 110m^2

3 rooms - 80m^2

5 rooms - 107m^2

2 rooms - 47m^2

4 rooms - 80m^2

5 rooms - 130m^2

3 rooms - 60m^2

disposal. The Timber-Concrete
Composite floor system has a
weight reduction of 50 per cent and
reduces CO emissions by up to
90 per cent. The Bremen-Cube will
receive a “NaWoh” certificate from
the “Vereins zur Förderung der
Nachhaltigkeit im Wohnungsbau
e.V.” (German NGO for the
advancement of housing
sustainability). The assessment
criteria consider socio-cultural
factors, functionality and technical
factors as well as life-cycle costs,
long-term value, environmental
compatibility and the health-
impact assessment.

Energy concept
The energy concept is based on a
highly insulated building envelope
which roughly correlates to a
passive house standard, fulfilling
the “KfW Effizienzhaus 55”
standard. Energy and water usage
is almost completely covered by
the individual house’s solar panel
facility and a heat pump with
an accumulator. The ventilation

system is designed over a central

exhaust-air facility on the roof,

which draws in clean air through

the trickle vent system in the

window frames. Domestic hot water

is powered by local electric water

heaters in each apartment, and

underfloor heating with low

supply temperatures helps to save

additional energy while providing

comfort. The Bremen-Cube fulfils

the “KfW Effizienzhaus 55” standard

with a yearly primary energy use

at a maximum of 55 per cent

of reference buildings from

“EnEV 2014” (German energy

conservation regulations).

Economical factors

Long-term development to serial

production. Designing tailored

solutions for different locations and

demands by means of generating

positive synergistic effects

requires an extensive development

phase. The experiences with the

first realised prototypes serve

the further development up to the

serial maturity. Once this step is

completed, the number of “unknown

factors” is reduced. The building

types are well-known to the

authorities, the planning takes

advantage of repetition and the

construction process is going

more smoothly.

The evaluation process continues

until these synergy effects can

be included.

(from the architect’s report)