Freiburg im Breisgau, Germany

Rathaus im Stühlinger

about

Together with the old town hall and the new building for a daycare center, the administration center forms an ensemble in the Stühlinger district of Freiburg. This new building combines administrative locations that were previously scattered throughout the city. The building complex contains two main functions: a citizen service center on the ground floor and variably designed office space on the upper floors. Various energy sources and the operation of the city hall mainly during daylight hours ensure optimal use of energy generated by photovoltaic panels. Heating and cooling energy is obtained from geothermal energy. Surplus energy is fed into the city grid. An external automatically controlled sunshade and triple glazing regulate the heat input in summer. The public areas of the city hall are equipped with a partial air conditioning system with heat recovery supplementing heating and cooling ceilings. The office spaces are regulated via building component activation and heating-cooling sails. The mechanical basic ventilation throughout the building is equipped with heat recovery. The vertical facade design is characterized by alternating modules equipped with photovoltaic cells, floor-to-ceiling glazing and panels with larch wood cladding. The flat roof area is also fully covered with photovoltaic modules. In the following construction phase, a building almost identical in construction to the new town hall will replace the old town hall and add another oval to the ensemble of daycare center and new city hall.

General

Architects:
ingenhoven architects
Specalist Planners:
Mohnke Höss Bauingenieure, BPK Brandschutz Planung Klingsch, DS-Plan, Tropp Lighting Design, BBS Landscape Engineering
Location:
Fehrenbachallee 12, 79106 Freiburg
Year Of INAUGURATION:
2017
Storeys:
6
Surface (m²):
24.215
Legal Status:
public
Use:
office and administration
Typology:
freestanding / ensemble
Awards:
Deutscher Solarpreis 2020, Gewinner der Kategorie Solare Architektur und Stadtentwicklung,Hugo Häring Auszeichnung, BDA 2020 – Kategorie "Büro- und Verwaltungsgebäude Breisgau", DGNB Klima Positiv Auszeichnung 2019, DAM Preis 2019, nominiertDeutscher Nachhaltigkeitspreis 2019, Balthasar Neumann Preis 2018, AuszeichnungArchitizerA+Awards 2018, Finalist, WAF Awards 2018, Finalist

CONCEPT & Context

innovation:
public net-plus energy building
spacial configuration:
public service area of the town hall on the ground floor, variable offices on the upper floors
infrastructure + accessibility:
the new town hall building forms an ensemble with the new building of a day-care centre and the old town hall, which is accessed by common outdoor areas
landscape:
urban

CONSTRUCTION

static system:
ferro concrete skeleton
envelope:
floor-to-ceiling windows and facade elements with photovoltaic panels
special detail:
photovoltaic integrated in the design concept of the facade

operation

heating system:
geothermal energy, building component activation
cooling system:
building component activation, cooling sails
sun protection:
automatically controlled exterior sun protection, triple glazing
ventilation System:
ventilation system with heat recovery
primary energetic demand (kWh/(m²a)):
45
energy benchmark (Germany):
KfW 40+

Images

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Copyrights:
HGEsch

Plans

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Copyrights:
ingenhoven associates

project map

Administration Centre Stühlinger
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Project Dossier

Download the project dossier as pdf in Din-A4 format. The pdf dossiers are available in english.

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