Sonnenhof Bülach




Terresta Immobilien- und Verwaltungs AG


Bülach, Switzerland


Mixed use development, residential, office, culture, retail


19’000 sqm


Urban study


Hosoya Schaefer Architects AG


Chaves Biedermann GmbH
IBV Hüsler AG
wh-p Ingenieure AG


Iurii Goncharenko Images


The Sonnenhof Bülach project sees itself as an independent, new neighborhood within the existing urban fabric. Existing structures are integrated, transformed and rethought. Learned addresses are preserved, urban spaces are enhanced and new qualities are created. The design blends into the local structure and granularity of buildings, loosely lined up along the historically curved Bahnhofstrasse and the buildings within the greenery behind it. Characteristic qualities of Bülach, such as the high porosity and the heavily greened living areas, are further developed and determine the appearance of the Sonnenhof quarter.

The area is characterized by the structure of its open space and, despite the relatively high density for Bülach, creates diverse and well-sunlit outdoor spaces, which stand in dialogue with the adjacent buildings. A clear hierarchy between public and semi-public space enables a natural orientation in the quarter.

Through its small-scale nature and granularity, the project can absorb the considerable change in terrain and enables a gentle and continuous course of the terrain without creating barriers in the landscape. The highest point of the silhouette lies in the middle of the site and thus marks the two Migros entrances. A high-rise building is deliberately avoided. It is neither necessary nor appropriate in the historical center of Bülach.

The urban setting creates a sequence of public and semi-public spaces, which not only open up a new urban perspective, but also enable a new form of community. Thanks to the attractive open spaces, the different ground floor uses and the diverse types of living, a place is created that develops an independent identity, enriches its immediate surroundings and at the same time embeds itself within the overall context.

The Kulturplatz forms the new cultural heart of the Sonnenhof quarter. The newly emerged square is flanked by buildings on all sides and has gastronomic and cultural uses on the ground floor. The former back of the ABC cinema becomes a high-quality space and center of attraction for the whole of Bülach, where cultural events, neighborhood festivals and weekly markets take place.



Primary School Christoph Merian, Basel, 2019 –
Current phase: construction project

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

Mobility Hub, Zug, 2019 –
Future Parking Facility with retail component
Current phase: execution

Station Square and Roof, Herisau 2015 –
Current phase: public vote

MEWA-Areal, Wädenswil, 2018 –
Transformation Project from the former industrial estate to the mixed-use development with housing
Current phase: framework plan

Viererfeld, Bern, 2018 –
Current phase: on hold

Office Renovation, Zug, 2020 –
Current phase: execution

House Renovation, Zug, 2020 –
Current phase: preliminary design

Wilhelmsburg Rowing Club, 2020 –
Current phase: preliminary design

Cooperative Housing, Wetzikon, 2020 –
Current phase: preliminary design

House Renovation, Geneva, 2021 –
Current phase: preliminary design

Urban Design

Salina Raurica / Salinenhofquartier, Pratteln, 2018 –
Current state: urban framework plan

Metalli, Zug, 2017 –
Current state: urban framework plan

Tech Cluster Zug, 2015 –
Current state: transformation plan

Elbinselquartier Wilhelmsburg, Hamburg, 2015 –
Current state: design guidelines

Bahnstadt Nürtingen, 2017 –
Current state: design manual

Urban Space Development Concept for SBB Basel Station, 2018 –
Current state: public consultation

KNZ Wil West, Thurgau / St. Gallen, 2011 –
Current state: urban framework plan

Station Area Dietikon, 2019 –
Current state: study with recommendation for further development

Areal Dübendorf, 2020 –
Current state: study

Areal Oerlikon, 2020 –
Current state: study

Areal Dierikon, 2015 –
Current state: urban framework plan

Station Herisau, 2013 –
Current state: areal development

Innovation Park Bergedorf, 2020 –
Current state: urban framework

Seetalstrasse Meierhöfli Emmen, 2020 –
Current state: test planning

ZHA, Boulevard, Hönggerberg Campus, 2020 –
Current state: ongoing (with Studio Vulkan)

Herrliberg-Feldmeilen station, 2020 –
Current state: study

Port City Riga, 2020 –
Current state: Urban design commission

Wankdorffeldstrasse, Bern, 2020 –
Current state: urban design study

St-Karli Brückenköpfe und Reussinsel, Luzern, 2020 –
Current state: urban design study

Campus Bochum, 2018 –
Current state: urban framework plan

Masterplan HB / Central 2050, Zurich, 2020 –
Current state: test planing (with Studio Vulkan)

Urban System Research

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

The Industrious City – Book Publication, 2017 –
(Lars Müller Publishers)
Published / available on Lars Müller Publishers website and in bookstores.

Workplace Area Development, Winterthur, 2019 –
Current state: ongoing

Network strategy 2040 and
future public transport 2050, Zurich, 2020 –
Current state: ongoing (with IBV Hüsler)


Zürich office

Flüelastrasse 10, 8048 Zürich, Switzerland (Google Maps)
T. +41 43 243 6313F. +41 43 243 6315

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