Housing Cooperative Thierstein: Study on the Spatial and Structural Future of the Cooperative
Participation, collective ownership and self-governance – these three principles form the foundation of housing cooperatives. Unlike private real estate companies, the focus is not on maximising returns, but on the long-term preservation of housing, stable cost-covering rents and social responsibility.
Anna Stärk
12. March 2026
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The origins of this housing model can be traced back to the early 20th century, when industrialisation brought profound social change. Factory work, rural exodus, housing shortages and precarious living conditions in cities led many people to seek alternative housing models. Supported by labour movements, non-profit organisations and reform-oriented actors, the concept of housing cooperatives emerged with a clear objective: to create healthy and affordable housing.
Today, more than 120 years later, this model is gaining renewed relevance. Ageing societies, changing household structures and increasing cost pressure present challenges that also affect the Thierstein Housing Cooperative. Founded in 1943, the cooperative is located in the popular Gundeldingen district of Basel and comprises 117 apartments. In order to ensure that its housing offer continues to reflect current societal developments in the future, our architectural office was commissioned to conduct a study on the spatial and structural future of the cooperative.
The developed concept includes both renovation and new construction and aims to reconcile diverse needs. The Thierstein Housing Cooperative intends to continue providing affordable housing while promoting diversity through a range of apartment layouts that accommodate different living models. Particular emphasis is placed on barrier-free living. In addition, the project seeks to improve the buildings’ energy performance, which will also contribute to long-term housing affordability. To achieve these objectives, extensions are planned that will further develop the existing row buildings into a courtyard structure.
A key challenge lies in organising the construction process in a way that allows cooperative operations to continue throughout the entire building phase. To ensure this, internal relocations within the cooperative – so-called tenant rotations – are planned.
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Anna Stärk
12. March 2026
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The Hirsacker Foundation is a private foundation based in Liesberg, Canton of Basel-Landschaft. By public mandate, it offers places in "Supported Living" as well as in "Accompanied Day Structuring" specifically for people on the autism spectrum. Founded in 1987, more than 60 employees are currently dedicated to enabling clients to lead self-determined and fulfilling lives. Tailored to individual needs, the services include nature-oriented, manual, and creative activities that take place in a safe and supportive environment, focusing on joy of life, development opportunities, and social inclusion. Maintenance work that has become necessary is now being undertaken by Blaser Architects. This encompasses several properties of the Hirsacker Foundation, particularly the "Riederwald" residential building and the "Hirsacker" area. A first sub-project has already been completed, with other works still pending.
What actually is... amock-up?Sketches, drawings,floor plans, 3D models - the language used by architectural designers tocommunicate visually is not always easy to understand right away in reality -after all, visualizations often only offer a perspective view and plans, gridsand the like must also be able to be read. And even if digitalization has longsince found its way into the field of construction (planning) and architecture,the implementation of a project and the end result is still a highly analoguematter that involves sensory perception. So what helps to illustrate ideas andpossible projects in the best possible way and to give clients, but also thecontractors, tradespeople and suppliers involved, a comprehensive picture ofwhat the future could look like? Exactly, a mock-up, i.e. a modelrepresentation on a scale of 1:1. The term mock-up has its origins in French(maquette) and means something like preliminary model, sketch or draft.
Press Release. After 20 years at the helm of the Board of Trustees of Architektur Dialoge, Christian W. Blaser has stepped down as President. With the transition to a rotational chairmanship within the board, the foundation is reorganising its structure while continuing its established event series and maintaining a focus on the foundation’s future development.
Auf den ersten Blick weckt derBegriff «Corporate Architecture» oft die Vorstellung von uniformen,austauschbaren Gebäuden ohne erkennbaren Bezug zum jeweiligen Standort. Dochals Architekten und Generalplaner, die immer wieder in diesem Bereich tätigsind, wissen wir: Hinter Corporate Architecture stehen komplexe Aufgaben, derenUmsetzung Präzision, Adaption, Kommunikation, logistische Fähigkeiten undweitere anspruchsvolle Kompetenzen erfordert – genau diese Herausforderungenmachen solche Projekte für uns besonders spannend.
The topic of green roofs and biodiversity conservation in inner cities has gained increasing importance in recent years and is becoming a key component of sustainable urban planning. As an architectural practice, we regularly engage with this subject, for example through our work on the Stücki Park project on Hochbergstrasse. This provides good reason to take a closer look. In line with our credo “sharing experience”, we aim to gain deeper insights into why urban greening and bird conservation are so important and what role Basel plays in this context. We spoke with two experts on the subject. We begin with Dr. phil. nat. Jean-Pierre Biber from the Advisory Office for Bird Issues, Department for Nature and Landscape Conservation of the Canton of Basel-Stadt.
Auch wir bei Blaser Architekten befinden uns mitten in der digitalen Transformation aller Geschäftsabläufe und können von uns behaupten, dass wir bereits vieles umgesetzt haben. Die Digitalisierung ist aber kein Sprint, auch kein Marathon – viel mehr ein Weg, den wir nicht mehr verlassen werden. Laufend werden neue Tools entwickelt, KI wartet in immer kürzer zu werden scheinenden Intervallen mit neuen Möglichkeiten auf. Das bedeutet, dass wir die digitale Transformation nicht als Prozess verstehen, der nun bald abgeschlossen sein wird, sondern als selbstverständlich gewordener Teil unserer täglichen Aufgaben. Deswegen ist es uns wichtig, diesen Weg aufmerksam zu gehen, was heute möglich ist zu implementieren, aber auch neue Entwicklungen nicht zu verschlafen. Einer unserer Mitarbeitenden ist in diesem Thema besonders zuhause und legt sich dafür ins Zeug. Zamri Thüring ist Student des Master-Studiengangs in Virtual Design and Construction (VDC) an der FHNW und arbeitet bei Blaser Architekten in der Qualitätssicherung für Computer Aided Design (CAD, QS). In diesem Blogbeitrag teilt er seine Erfahrungen und Einsichten.
On May 9, 2025, the Industry Night Regio Basel will take place – a unique event where companies open their doors. Blaser Architekten has taken the initiative and brought together seven companies from the region to provide a joint insight into the diverse aspects of construction projects.
The topic of green roofs and biodiversity conservation in inner cities has gained increasing importance in recent years and is becoming a key component of sustainable urban planning. As an architectural practice, we regularly engage with this subject, for example through our work on the Stücki Park project on Hochbergstrasse. This provides good reason to take a closer look. In line with our credo “sharing experience,” we aim to gain deeper insights into why urban greening and bird conservation are so important and what role Basel plays in this context. We spoke with two experts on the subject. In the second part of the interview, we exchanged views with Dr. phil. Monika Schaub from the Department of Building Applications, Trees, and Plant Protection.
DEEP DIVE – Auseinandersetzung mit Branchen-Themen: Bauindustrie zwischen Politischem Mikromanagement und Europäisierung
Rückblick auf unser Podiumsgespräch im Klybeck Areal am 3. September 2024. Am 3. September 2024 fand im Klybeck Areal ein spannendes Podiumsgespräch statt, das sich mit der Frage beschäftigte, wie die Bauindustrie den Spagat zwischen politischem Mikromanagement und Europäisierung meistern kann. Gastgeberin auf dem Klybeck Areal war Anita Fetz, alt Ständerätin und Verwaltungsrätin der Rhystadt AG. Auf dem Podium waren Hans Peter Wessels, alt Regierungsrat Kanton Basel-Stadt, Gabriela Theus, Geschäftsführerin Immofonds Asset Management AG Zürich sowie Christian W. Blaser, Blaser Architekten Basel. Moderiert wurde das Podium von Manuel Hutter, Verwaltungsrat der Kontur Projektmanagement AG. Anlass für uns, das Gespräch und die Gedanken dieses Abends noch einmal Revue passieren zu lassen...
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