About us

(proun. yeah you! studio)

We are a young architecture practice based in Poland, directed by co-founders and lead architects Iwo Borkowicz and Adam Siemaszkiewicz. Office ambition is to convey contemporary space understanding within forms found somewhere between classical beauty and mundane awkwardness. We are fascinated by peculiar forms made with simple lines, raw materials and honest detailing. Can a building tell a joke? A logic is our guide, intuition is the weapon of choice. We like collaborations. We do care.


Iwo Borkowicz

Iwo Borkowicz is a laureate of 2016 Young Talent Architecture Award by the Fundació Mies van der Rohe as well as EAAE Prize by the European Architectural Medals Committee. He obtained his bachelor degree in Architecture and Urban Design at the University of Fine Arts in Poznań, Poland. He continued his education in Gent, Belgium at the International Masters in Architecture at KU Leuven where he obtained a Magna Cum Laude Master Degree. He is a member of Streetscape Territories, a research project focusing on the transformation of the urban fabric with streetscapes as its protagonist.

Adam Siemaszkiewicz

Adam Siemaszkiewicz is an architect and a melomaniac. He studied at Wrocław University of Science and Technology, Poland and Lincoln School of Architecture, United Kingdom. After graduation he had worked in number of European practices including Saunders Architecture (Bergen, Norway), Heupel Architekten (Münster, Germany) and OYO Architects (Gent, Belgium) before eventually returning to Poland to start JEJU.studio. He’s also a CG enthusiast, owns a german shorthaired pointer named Sofa and runs a music channel called Eargasm.


  • 2016 Young Talent Architecture Award, Fundació Mies van der Rohe
  • EAAE Prize, European Architectural Medals Committee
  • Antenna2017: 20 Young People Shaping The Future Of Design, DesignIndaba, Dutch Design Week and World
    Design Events

Conferences & lectures

  • OSSA Talks 2018, Łódź, Poland
  • PUARL Conference, San Francisco, USA
  • NED CURP 2017, Karachi, Pakistan
  • INDESEM, Delft, The Netherlands
  • Dutch Design Week, Eindhoven, The Netherlands
  • Design Indaba, Cape Town, South Africa


  • Educational Catalyst, Topos Magazine 106
  • We are halfway there, Topos Website (link)
  • How Schools in Africa Can Benefit From Clever Design and Mango Trees, Archdaily (link)


  • OSSA 2018, Łódź, Poland

Yeah you! Let’s make architecture together.
Get in touch with us!


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