Studio Onu is an architecture and design studio founded by Kuba Tomaszczyk, working across buildings, interiors, objects and the spaces between them.

"The most interesting things happen when worlds that shouldn't meet, do."

The studio operates from Basel and Warsaw, taking on projects across Europe — from private residences to commercial spaces, from bespoke furniture to the full interior and styling projects.

The scale changes. The ambition does not.

Kuba Tomaszczyk was born in Poland and left at eighteen — the beginning of a journey that has yet to stop. He studied architecture at the University of Bath and The Bartlett School of Architecture at UCL, then worked at Herzog & de Meuron in Switzerland and Behnisch Architekten in the United States and Germany before founding Studio Onu. He holds professional qualification from the Royal Institute of British Architects.

His work draws on a deep respect for history, material and place — not as constraints, but as raw material. Every project begins with a question about what already exists: the character of a site, the story of a client, the memory embedded in an object. The answers shape everything that follows.

Studio Onu designs experiences at every scale. A building that reads its landscape. A room that holds the life of the people who live in it. A table that is a sculpture before it is furniture.

Design done with integrity is never a luxury. It is simply the right way to work.

  • Architecture

    Our approach to building design is focused on creating spaces that carry narratives into the future. We believe that architecture is more than just physical walls - it's about collaborating to construct timeless environments that align with your lifestyle, history, and personal beliefs. Let's work together to bring your vision to life.

  • Interiors

    In our architecture, interiors hold as much significance as the external envelope. They create a connection between the internal and external environment, whether it's with nature or the urban landscape. To achieve this, we seamlessly blend the design with the surroundings with a thorough and considerate methodology.

  • Objects

    We seize every chance to craft bespoke items, be it a novel creation or a refurbished antique given a fresh perspective. In an era dominated by generic mass manufacturing, a unique table, a chair, or a lamp elevates to the status of collectable art. We hold firm in our belief that such endeavours are always worthwhile.