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.



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