In Focus: Building on Sloped Terrain – A Conversation About Views and Vision

In Liesberg, we are currently realising a residential building that deliberately leverages the complex conditions of its hillside location. The clear orientation and carefully positioned openings towards the landscape not only enable impressive long-distance views; the quality of living inside is also enhanced by a sustainable construction approach and integrated building services, designed with the future in mind. We spoke with our client and developer and asked…

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1. Which individual needs and wishes are particularly important in the planning process – and how have these been addressed in the design so far?
In my view, a house is not built only for oneself, but also for future generations. For this reason, I want to plan with foresight and have, for example, opted for a double garage – even though a single garage would be sufficient for my own needs. In addition, global warming does not stop at Liesberg. Topics such as Minergie standards, photovoltaics, thermal insulation, controlled ventilation, and air conditioning are therefore aspects that should be integrated into the project.

2. Are there specific rooms or elements in the house that you are particularly looking forward to or that are especially important to you?
Absolutely, the unobstructed view into nature thanks to the natural slope is definitely something I am looking forward to. But also the high ceiling heights, as well as good acoustic and daylight insulation. The house isoriented towards the south – facing the sun. Towards the street and the side elevations, there will only be a limited number of windows. Air conditioning is also planned – which is an additional benefit.

3. Were there moments during the planning process where your ideas changed? If so, why?
Yes, definitely – it is very much a work in progress. You start with certain ideas, wishes, and expectations, but especially through discussions with professionals and further research, it often becomes clear that some things are not as straight forward or cost-efficient to implement as initially assumed. Sometimes new input also emerges that suddenly feels more convincing than the original idea – that is completely normal. In my case, I decided against a ventilated, rainscreen façade for cost reasons and instead invested that budget into additional living space. I also initially considered incorporating a civil defence shelter, but that has since moved down the priority list. And the original idea of a water-based wood stove has been replaced in the planning by a masonry storage stove.

4. What role did sustainability and energy efficiency play in your project – and how are these aspects being implemented?
As mentioned, climate change is also a reality in Liesberg. My goal was therefore to achieve a highly sustainable and energy-efficient building with Minergie certification. I found materials such as clay and straw very interesting in this context, but ultimately the choice fell on concrete, which also offers many advantages in its own right.

5. Which architectural concepts or design principles were particularly important to you– for example style, openness, privacy, or light guidance?
My plot is located on a slope – a characteristic that also brings challenges, but which I wanted to take advantage of. The entrance facing the street is oriented to the north and is intentionally kept restrained and understated. The “wow effect” unfolds on the south side, with large windows, a terrace, and abundant natural light.

6. Sloping sites are considered challenging – which specific structural or planning solutions were implemented in your project?
For me, the slope was more of an advantage than a disadvantage. The basement level is aligned with part of the living areas – meaning the cinema room is directly adjacent to the living room rather than being isolated in the basement, which creates a stronger spatial connection. Another advantage is that the garden can be structured into different terraces. The most important benefit, however, is the unobstructed setting and the exceptional views.

7. How were daylight, shading, and indoor climate considered in the design – especially in a sloping site with specific solar conditions?
Shading is a key topic within Minergie requirements. The south façade is fully glazed but carefully shaded. East-facing windows were reduced in size to limit summer heat gain. To the north – towards the street and hillside – only a few windows were planned, ensuring privacy and contributing to passive cooling. Airconditioning manages the remaining temperature regulation.

8. What role did building services (e.g. heating, ventilation, smart home systems) play in the overall architectural concept?
A Minergie building places high demands on technical systems – from controlled ventilation and heating to photovoltaics and battery storage. Whether a smarthome system will be implemented is still open, but certainly a possibility.

9. What advice would you give to other clients planning a bespoke home in a challenging location?
With a strong team of experts supporting the process, very little can go wrong.

More blog posts

Anna Stärk
/
09. December 2024

Analog Despite Digital: The Significance of Architectural Model Making in a Digital World

A large part of our work today is digital and virtual—we design with CAD, enhance plans with BIM data, and visualize projects in 3D. Still, sometimes the tried and true methods prove their worth. Take model making, for example, which continues to play a significant role in architecture. Surprisingly, this might seem counterintuitive given the indispensable tools like 3D renderings and simulations, making physical model making appear almost outdated. However, as in life, the magic often lies in the mix: combining digital and analog methods unlocks unique potential. Why Analog When Everything Is Digital?

Michael Fritschi
Anna Stärk
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11. March 2025

More natural light, lower energy consumption, and streamlined costs

… How Glazing Systems Sustainably Brighten Spaces In our projects, the use and integration of light always play a central role. Whether in offices, laboratories, or residential spaces, daylight is a crucial factor in both new construction and renovation projects. And for good reason—flooded with natural light, rooms not only create a pleasant atmosphere and a sense of spaciousness but also significantly impact energy efficiency and indoor climate. Last but not least, light and air have been proven to influence human psychology. In the following, we take a closer look at the key aspects of daylight planning from an architectural perspective and how the right glazing systems can enhance daylight supply in interior spaces.

Anna Stärk
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30. January 2026

In Focus: Interview “Green Roofs in Urban Areas” (Part 2)

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.

Anna Stärk
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02. April 2026

In Focus: Interview with Prof. Raphael Guzman, Head of Clinic and Chief Physician of Neurosurgery at USB

The main campus of the Switzerland Innovation Park Basel Area is home to numerous innovative companies in the biotech and healthtech sectors. The University Hospital Basel also maintains a branch here, offering a forward-looking learning environment through the Skills Lab Simulation Centre. We reached out to Prof. Raphael Guzman, Head of Clinic and Chief Physician of Neurosurgery at the University Hospital Basel, to learn more about the benefits of the new Skills Lab.

Christian W. Blaser
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17. October 2024

Bauindustrie zwischen Politischem Mikromanagement und Europäisierung

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...

Anna Stärk
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27. November 2025

Revisited: What is life like 13 years after moving in?

Our new blog format REVISITED takes a retrospective look at completed projects, offering an assessment of architecture as it is lived over time. We begin with a single-family home in Witterswil, completed in 2012. Situated at the edge of the building zone, the one-storey residence was realised as a densification of an existing plot and includes, in addition to the customary living areas, a slightly recessed studio space. The house was originally occupied by a couple to whom we have returned for a visit 13 years after their move-in.

Anna Stärk
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28. May 2024

Relaunch Blaser Architects

Founded in 1993, our office can now look back on a career spanning more than 30 years. 30 years in which we have been able to implement a large number of exciting projects, gain experience and, last but not least, continuously develop ourselves. What has remained the same is the passion for our profession and the unconditional thirst for knowledge and the will to share it, because more than ever we believe that it is not about preserving know-how and experience, but about sharing and passing it on - this is the only way to create mutual exchange, progress and participation. Our company claim “sharing experience” is intended to fulfill this desire and is part of our relaunch, which we implemented on the occasion of our 30th company anniversary...

Anna Stärk
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22. May 2024

What actually is... amock-up?

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.

Anna Stärk
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30. September 2024

Minergie certification for Andermatt

In the heart of the Gotthard massif lies the small village of Andermatt, which despite its striking location remained untouched by tourism for a long time. Thanks to a comprehensive tourism initiative by the major Egyptian-Montenegrin investor and developer Samih Sawiris, this has now changed and Andermatt has become an attractive destination for winter and summer visitors. We were also involved in this project and, as architect and general planner, have been responsible for getting the largest flat block there, Haus YARA, off the ground in recent months. Our guiding principle for this project was to combine tradition and modernity in order to create a harmonious whole between contemporary living and traditional architecture. MINERGIE certification, which was officially awarded the week before last, is also part of the concept.

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