Bahnstadt C2, Heidelberg




Hahale GmbH in consultation with Heidelberg City Planning Office


Heidelberg, Germany


Culture, Co-living, Co-working, Retail, Gastronomy, Mobility


60’000 sqm


Invited Competition, 3rd Prize


Hosoya Schaefer Architects AG


Agence Ter .de GmbH
Ernst2 Architekten AG
Dr. Lüchinger + Meyer Bauingenieure AG
Ingenieurbüro T. Wackermann
Prof. M. Lange Ingenieurgesellschaft GmbH
Transsolar Energietechnik GmbH


Filippo Bolognese


The new “City Lounge” with its prominent location in Heidelberg’s Bahnstadt, is a contemporary interpretation of the urban block. The individual structures respond specifically to their respective locations and, as an ensemble, form a clearly legible spatial figure. In relation to the urban space, the project presents itself with a well-proportioned, inner-city architectural language that makes do with few but accentuated architectural details. On the ground floors, an urban base is realized, activating the urban space and bringing the public together with the new development. The inner courtyard, on the other hand, forms the actual “city lounge” – a landscaped, differentiated courtyard world, full of life and opportunities for interaction.

At the southern bridgehead of the Czerny Bridge, the head building forms the prelude to the quarter and formulates a gateway situation with the planned building (C1) on the opposite side of the street. The result is a spatial frame of the Czerny Square, doing justice to its function as an entrance to the city. By slightly stepping back from the building line, the head building receives a frontal zone which does justice to its use and formulates an entrance gesture into the greened courtyard of the “City Lounge”.  Along the Czerny Ring, the development takes up the grain of the surrounding buildings and interweaves the inner world of the “City Lounge” with the urban space of the Czerny Ring by means of structural joints. With its public use, the structure on the square by the water tower is an important, representative building block in the urban fabric. The chamfered corner gives it a clear orientation to the square and articulates it as a building with predominantly public uses. The elongated volume along the railroad tracks protects the inner courtyard from sound emissions. The articulation of the façade breaks up the length of the volume and creates a reference to the urban grain of the Bahnstadt locale. Here, too, structural joints provide the necessary link between the inner courtyard world and the lower-lying green corridor along the cycle path and the Max-Planck-Ring to the northeast. Free-standing building volumes, the so-called “Co-nnectors”, structure the inner courtyard and play on their direct surroundings and the buildings connected to them.

The “City-Lounge” is an ensemble of independent buildings, which in their interplay create a complex neighbourhood structure. They specify and hierarchise the urban space in their immediate surroundings. The idea of creating a place where culture, technology, innovation and diversity come together becomes the design-defining theme. Flexible building structures make it possible to create modern co-living typologies while also allowing for classical forms of living. Collaborative working and living does not stop at the façade, rather the entire courtyard becomes a co-working and co-living area, offering its residents and neighbours in the surrounding neighbourhood a diverse space of possibilities, which is complemented by commercial and public uses. In its appearance and materiality, the project refers to the industrial past of the site and evokes associations with the factory and railroad buildings of the 20th century, some of which can still be found today.



Morgentalquartier, Wetzikon, 2020 –
Program: Housing
Current state: Phase 51 and 52, under construction

Haus Myrte, Wädenswil, 2022 –
Program: Transformation of historical building
Current state: Phases 51 and 52, under construction

Station Square and Roof, Herisau 2015 –
Program: Station square, station roof, bus roof
Current state: Phase 41, under construction (partially)

MEWA-Areal, Wädenswil, 2018 –
Program: Culture, Restaurant, Housing, Retail
Current state: Phase 31, preliminary design

Wilhelmsburg Rowing Clug, Wilhelmsburg (D), 2020 –
Program: Clubhouse, boat hall
Current state: Execution Pla

House A, Geneva, 2021 –
Program: Residential house
Current state: Renovation, ongoing

Primary School Christoph Merian, Basel, 2019 –
Program: School
Current state: ongoing

Herriberg-Feldmeilen station, 2020 –
Program: Retail, housing, bus yard
Current state: framework plan

Airport Engadin, St. Moritz, 2020 –
Current phase: construction project

Cooperative Housing, Wetzikon, 2020 –
Current phase: tender, 2020 –
Current phase: Project phases design to operation

Boulevard, ETHZ Hönggerberg Campus, 2020 –
Program: Campus Boulevard redesign (with Studio Vulkan)
Current state: ongoing

Viererfeld, Bern, 2018 –
Program: Housing
Current state: on hold

Urban Design

Bahnhof Romanshorn, 2022 –
Current state: study (with Sudio Vulkan)

Kaserne Aarau, 2022 –
Current state: urban framework

Areale Wittenbach, 2022 –
Current state: urban design commission

Stiftungsareal Neumünster, 2022 –
Current state: study

Kieler Schloss, 2022 –
Current state: Public think tank on usage and architecture

Campus Heidelberg, 2021 –
Current state: Masterplan process, in-depth studies

Otterbach Süd, 2020 –
Current state: urban framework plan

Innovation Park Bergedorf, 2020 –
Current state: urban framework

Station Area Dietikon, 2019 –
Current state: urban framework plan

Campus Bochum, 2018 –
Current state: project support

Metalli, Zug, 2017 –
Current state: project support

Bahnstadt Nürtingen, 2017 –
Current state: project support

Areal Neugasse Zürich, 2016 –
Current state: completion of master plan, public consultation

Elbinselquartier Wilhelmsburg, Hamburg, 2015 –
Current state: project support

Tech Cluster Zug, 2015 –
Current state: transformation plan

Station Herisau, 2013 –
Current state: areal development

KNZ Wil West, Thurgau / St. Gallen, 2011 –
Current state: project support

Urban System Research

Metaverse, 2022 –
Current state: ongoing

Entwicklungskonzept Würzenbach, 2022 –
Current state: ongoing

ESP Hochdorf, 2021 –
Current state: spatial-urban as well as use- and circular-based development concept

Deep Urbanism, 2021 –
Current state: ongoing

cividi gmbh – civic data intelligence, 2019 –
Digital tools for the analogue city
Current state: ongoing


Zürich office

Flüelastrasse 10, 8048 Zürich, Switzerland (Google Maps)
T. +41 43 243 6313 F.

CAREER: (Please refer to our OFFICE > CAREER section for further information)

Kyoto office

Jimukinoueda bldg. 603, 21 Sakaicho, Gojo-Takakurakado, Shimogyoku, Kyoto 600-8191, Japan
T. +81 75 744 1503