Based on cooperative work and shared knowledge, Architecture Studio Calas aims to favour dialogue and debate, to transform collective knowledge into increased creative potential.

EFAS :: Library of the Speakers

Design for European Forum Alpbach, 2018/AUT


A special bookshelf as a place to gather, to relax and to communicate. A modular system reflects the surrounding environment and its adaptability to time and space.

Role: Concept, design
Realization: Berufsschule für Technik und Holz/Absam/Tirol
Client: European Forum Alpbach

NEW TRADITION ::: Contemporary architecture of South Tyrol

Curatorial work – KCB, Likovna Galerija (during BINA Architecture week), Belgrade, 2019/SRB


The format New Tradition follows up to the successful exhibition “Hosting the Dolomites – Appropriation of Space 7/7”. The re-adaptation of the exhibition concept aligns to the Theme of the BINA 2019 “Positive and Active”, fostering a deeper relation to the cultural and build environment, showing 8 architecture and 8 art positions. The exhibition concept rests upon the well-known hospitality of South Tyrol by expressing its cultural and multi-lingual character. As being a three-language speaking region, with a many faceted cultural scene, the exhibition aims to extend an invitation at the common table. Visitors take a seat at the big table, where architectonical and artistic dishes are served (exhibited). Tradition, re-interpretation and creative outwork are listed on the menu. Mahlzeit (German), Buon appetito (Italian), Bun Apetit (Ladin).

RIVOLO:: A sensitive stream in an amazing covelano marble

Design for the Breitwieser Stoneworld competition , 2018/AUT


After choosing a marble block in the quarry each invited architect team had the chance to develop an own approach to the !Wannenraum!. “Rivolo”, Latin for small stream, represents the elaboration of marble by a constant water force. An approach which brought up the design solution and excavation shape of the material.

HEDY LAMARR PRICE ::: Digital Days 2018

Women Award Design for the City of Vienna, 2018/AUT


The Hedy Lamarr Price 2018 for the Digital Days 2018 reflects the beauty of actress Hedy Lamarr on the outside and the genius inventor (frequency hopping system for Bluetooth and WIFI) behind the mask. Two extremes which are unified in the first women award in IT in Vienna. A 3d steel printed design as a manifestation of beauty and technology.

EFA LOGGIA ::: #efaloggia

Installation – European Forum Alpbach, 2018/AUT


The EFA LOGGIA was designed by Studio Calas and constructed by the apprentices of the Tyrolean Vocational School of Wood Technology to present Les Thermes, a pit pool concept of the French-Belgian artist group France Distraction, during the European Forum Alpbach 2018.


Curatorial work – Bensoussan Han, Thessaloniki, 2018/GRC


After appearing in Moscow’s State Architectural Museum, the Italian Embassy in Vienna and the Oris House of Architecture in Zagreb, the „Hosting the Dolomites“ group exhibition was displayed at the marvellous Bensousan Han in Thessaloniki (Greece) – a former stop-over for merchants, nowadays used for cultural events and alternative theatre.

In cooperation with the SKB (Südtiroler Künstlerbund), co-curation Lisa Trockner


Urban renewal – how to deal with urban substance


How to reactivate the lost urban resource – the fire wall. A case study for the Helblinggasse in Vienna, proposing an urban shelf for a vivid street life.


Competition for the architecture and curatorial program of the EXPO 2020


Design proposal for the EXPO 2020 – Connecting Minds Creating the Future. The pavilion connects entrepreneurship with tradition by experiencing the particularities of Austria through a digital reality.


Competition for a professional school in Tamsweg, Salzburg


According to the call, a functional concept with short connections was framed by a wooden system of halls. Shaping a familiar courtyard with an intimate entrance to the building. The implementation in the surrounding terrain offers a dialogue between landscape and architecture.

Small but brave ::: Backstage ::: booklet out now

Small but brave – “Backstage”  booklet out now

Backstage – Schauplätze der Architektur, 2018 Vienna/AUT


Do you feel inspired by architecture and try to find the right words? Take a glimpse in our “Backstage” booklet. Stories, insights and personal thoughts shaped the inspirational texts. Order a free copy by sending us a mail!

reading sample

Reading „Backstage – Schauplätze der Architektur in Südtirol“ at Loos Bar

American Bar, 2018 Vienna/AUT


We were invited from Marianne Kohn, the so-called “Patin”, to give a reading at her well renowned Loos Bar. The soon crowded 30 m² Bar, with its iconic and inspiring aura, framed a memorable night among the audience.


Design for the regional bus stops of Carinthia, 2018/AUT


A design proposal as a reflection of landscape, built environment and society. The modular bus stop offers a place for information, interaction and general supply. Important elements, which shape and form our architectural aim.


Exhibition – ORIS House of Architecture, Zagreb, 2017/CRO


After appearing in Moscow’s State Architectural Museum and at the Italian Embassy in Vienna, the „Hosting the Dolomites“ group exhibition was displayed at the House of Architecture of Zagreb (Croatia) – a place regarded as a reference point for architecture and art in Central Eastern / Southeastern Europe.


Pavilion and student work for the Museumsquartier / Architekturzentrum Wien, 2017/AUT


BRICKerl is a TU Wien student project in collaboration with Architekturzentrum Wien and an outcome of the studio led by the visiting lecturers Assemble together with David Calas. It is a public summer pavilion and a ceramics workshop.

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Shell for fire fighters – Invited competition for a Fire Fighters house in Lajen, 2017/ITA


The architecture accentuates the hill and offers beside the facilities an “Arena” for the village and a playground on top. Simple, efficient and straight to the point of usage.

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Proposal – Refurbishment of the Egon Schiele Square in Tulln, 2017/AUT


Concept for a public square in front of the Egon Schiele Museum in Tulln / Austria. The new square offers additional to a barrier free access and niches for the visitors, a strong identity. The identity is expressed on behalf of a catchy attraction point and strong communication through colour and material.


Book publication, 2017/ITA/AUT

Sneak in preview:

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„A font decides about the lifetime of a book“ ::: Coming up soon- fall 2017 – our first book on ‚Experiencing architecture in Southtyrol from a different book…or angle‘ Sven Wuttej, Clemens Horvath,  Valentina Rosa,  Folio Verlag/Editore

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HOSTING THE DOLOMITES ::: Appropriation of Space 7/7

Exhibition – Italian Embassy in Vienna, 2017/AUT


The landscape, culture, and creative language shape the space we act and live in in the Dolomites. The surroundings are a form of inspiration, which becomes reality through a creative output. The exhibited works operate at the blurry boundaries of architecture and art, showing their dynamic spirit in a unique exhibition hosted by the Dolomites.

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Welcome to Enlight – Pavilion for the Klimahouse Fair 2017/ITA

ENLIGHT wants to arouse your curiosity and offer a glimpse of tomorrow’s living. We invite you to look behind the scenes. How do you express comfort? How can technology create comfort? How much know-how can there be in a house?

ENLIGHT is an invitation to build the future with your ideas and your imagination. We create memories of the future and try to share our dreams and plans for the sustainable and creative buildings of tomorrow.

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Living in the Wall – 21er Haus, 2016/AUT

Together with the Vienna University of Technology, the 21er Haus realized an experimental housing installation, which was located in the public accessible lower-level courtyard of the museum during the summer months of 2016.
How can we ensure the optimum use of living spaces? Which spatial requirements are essential in order to live cheaply and comfortably today? In times of crisis, what influence do people’s new basic needs have on the architecture of temporary housing, such as emergency shelters, on social housing or on the renovation of old urban buildings? Do we need a paradigm shift in our approach to housing?

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HOSTING THE DOLOMITES ::: Appropriation of Space 7/7

Exhibition – Susev Museum of Architecture Moscow, 2016/RUS

The appropriation of space is an expression of wishful thinking that affects our private, semi-public, and public space. It is an imagined idea followed by action that becomes a dialogue in space. The focus of the interaction relates to multidisciplinary design practices and reflects the appropriation of space as a dynamic process.

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Sta|d|ttwohnen* meets #EFA16

Installation and Performance during the European Forum Alpbach 2016/AUT


It was an unusual surprise for the 33 participating students when we first introduced our design studio Sta(d)ttwohnen in March 2016. A design studio con­sisting of an excursion to Alpbach, an individually determined design approach, a communication com­ponent and finally the opening of the EFA16 Built Environment Symposium.

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MAK Vienna Exhibition contribution – Adressing the Endless House at a school for hairdressers, 2016/AUT


The Endless Stylers take Frederick Kiesler’s Endless House literally: An endless residential
structure, it lies in the endless expanse of a quiet sea: the Endless Stylers House. It’s not only possible to live in isolation, but also to party and to live well. Because this necessitates the requisite small change, the house is shaped like a dollar sign. It appears to be an absolute must for cool people to enliven the structure and celebrate their openness. There are only few options for retreat, because teens require only little rest. Light around the clock is provided by the “bling-bling” at the rager, an endless party that turns night into day.

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LISI – The House

TEAM AUSTRIA – 1st place at the Solar Decathlon 2013/USA


LISI – “Living Inspired by Sustainable Innovation” – is Austria’s contribution to the Solar Decathlon 2013 competition and a house for the future. LISI is not only firmly rooted in Austrian traditions and values, this 2-person home also
conceptually draws on key elements of Alpine culture, in particular, the meaning of trees in this country.

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Studio Calas involves creative minds with different skills,

in order to question urban planning and architecture.



As founder of STUDIO CALAS and lecturer at the technical university Vienna, David operates between the blurring boundaries of urban planning, architecture, art and politics. Involved in different projects concering the urban co-creation and digitalisation process of cities.


Project admin

At STUDIO CALAS, he gets the chance to reimagine the all-embracing profession as an architect. Beside architecture he works in the fields of graphic design, algorithmic workflows and filming to find new ways of expression.

Sven Wuttej


Strong focus on combining architecture, design and photography. Sven understands architecture not as a matter of style but as a related essence. Spotlight of his work is the enhancement of social, cultural and local context towards it’s users.



Joining  STUDIO CALAS after prior experiences in Italy and Spain, Valentina developed a particular interest for social and sustainable architecture.
She envisions design as a process sensitive to people and their cultures, which goes beyond the limits of architecture.


The principle of Studio Calas is the cooperative conception. From the very beginning, the practice has believed in the virtues of exchange, crossing ideas, common effort, shared knowledge and enthusiasm.

Storm Ideas
Time gives us inspiration and ideas. Actually we are craving for them!
Our visions and insights need the press to express.
We shape lectures and the lecture shapes us.

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