05_Atelier Kempe Thill | Atriumhaus Bremen



Project title: Atriumhaus Bremen

Recommending party
The project has been submitted by:

Atelier Kempe Thill architects and planners


Country: Germany

City: Bremen 

Address:  Otto-Brenner-Allee


Designer or design team architects:

Atelier Kempe Thill architects and planners, Rotterdam (NL)
André Kempe, Oliver Thill, Laura Paschke

partner architect:
IMP Ingenieurbüro Mirsanaye+ Partner, Bremen (DE)


Plot area – Superficie lotto: 4 000 mq

Gross Area – Superficie lorda totale: 4 458 mq

Of which
residential – Di cui Residenziale:
% 66

Public/communal areas – Spazi collettivi/comuni: % 33

Facilities for the public – Attrezzature pubbliche: % 0

Business/trade – Commerciale: % 0

Offices – Uffici: % 0

Number of residential units – Numero di alloggi: 28

Typology of users – Tipologia di utenti:

Families – Famiglie
Old-aged people – Anziani
Other – Altro

Total building costs Euros – Costo di costruzione totale in Euro:

Building Cost = Total Bulding Cost / Gross Area – Costo di costruzione = Costo di costruzione totale /Superficie lorda totale: Standard social housing budget Germany

Floor area ratio = Gross Area / Plot Area – Densità = Superficie lorda totale /Superficie lotto: 1

Work started on date – Data inizio lavori: Wednesday, 1st April 2015

Work completion date – Data ultimazione lavori: onday, 30th September 2019


Gewoba AG Wohnen und Bauen.

Allotment rule – Regola di assegnazione:


Reduction cost percentege compared to the market value – Percentuale di riduzione di costo rispetto al valore di mercato

assignement %: 80

rent %: 50


Costs are approx. 80% of the average costs in Germany. High quality is achieved by using: a) a very compact typology with a 25 m plus depth.
b) an access system with only one main staircase + one escape staircase
c) a repetitive building system with the same grid-line dimensions, facade elements and interior components.

Rental/sale cost compared to market price
Costo di affitto/ vendita rispetto al mercato

The price for a rental apartment is app 60% under the average price level in Bremen.

Rules of allocation – Regole di assegnazione
The small apartments are designed according to German social care system requirements.

Protection of fragile categories
Tutela categorie fragili

The apartments are meant for persons who fit in the German social housing system (income related).

Involvement of inhabitants in the building process – Coinvolgimento degli abitanti nel processo

Community accompaniment in the life of the building – Accompagnamento della comunità nella vita dell’edificio:


Functional mixitè – Mix funzionale:
Next to a children daycare, the building is also a neighborhood centre and a youth activities centre.

Common spaces and shared living-Spazi comuni e abitare condiviso:
The collective atrium space is meant as community space.


The project is built according to the German NABU regulations + KfW standard.
Attention was payed to: compactness, high energy saving façade with triple glazing, geothermic heating system, solar panels etc…

Description of the project:

The project started with the ambition to optimise all cost factors on an organisational level in order to realise a better spatial quality and more pleasant facades than generally in social housing. Therefore, the building is organised as a very compact block with a depth of over 25 meters. The ground floor is designed for a nursery school and a city quarter office. A very cost-efficient social housing typology occupies the first and second floors. All 28 units are accessed by one single open main staircase. On the south side of the block, an additional escape staircase has been realised.


On the north side of the ground floor, one can find the apartments central entrance hall and a small neighbourhood centre. A kindergarten occupies the most substantial part of the ground floor and has its own entrance hall on the east side. All of the group rooms of the kindergarten are organised along the facade. The spaces have big panoramic windows for a fluent visual relation between interior and park. A significant event room is placed in the middle of the kindergarten. This space is up to 11m high, has a view towards the sky and is fully glazed towards the corridors.


The main spatial quality of the social housing project is the collective atrium space. This atrium is used as a laid-back and surprising entrance and access zone with an open staircase for the individual homes. It offers a shared space with collective facilities for future inhabitants that was previously unseen in contemporary German social housing. The rather small units are organised around the central atrium and are composed of compact and very convenient mono-orientated, one-bedroom apartments on the west -and east sides of approx. 45–50 m2. To offer fluent relation between interior and exterior all the apartments have two substantial windows with double doors. On the corners, larger housing units are designed which offer a double-sided orientation with panoramic living rooms. To encourage an intense relationship with the green surroundings we provide the housing units with exceptionally large outside terraces. As a result, the entire block is wrapped with an extra layer of balconies around the facades, offering the inhabitants the unexpected luxury of pleasant spaces for relaxed outside living within the city.