Atelier Prati Zwartbol



    Sanierung-Aufstockung, Zürich

    Ateliers Professionnels, Epagny


    Seniorenwohnungen, Aesch    

    Wohnungsbau Herosé, Aarau

    Ferme de la culture, Troinex


    MA Tödistrasse, Zurich 


    Psychiatrie, Liestal  

    Logements, Meinier  

    Wohnungsbau, Root  

    Phare, Genève  

    Pavillion im Park, Zürich  


    Dorfplatz, Zumikon    

    Kehlhofplatz, Steckborn    

    KJP, Chur 

    Wohn- Werkheim, Worben

    Textilmuseum, St Gallen

    Kaserne, Zürich

    Dreieck, Mörschwil


    Logements, Confignion  

    Wohnen am Bach, Schlieren


    Haus Eber, Zürich 

    Pflegezentrum, Oberkirch 

    MHNF, Fribourg 

    Central d’engagement, Sierre


    Bastion St Antoine, Genève

    Wasserbrunnen Utoquai, Zürich

    MHN, Genève


    EPS, Yverdon-les-Bains


Atelier Prati Zwartbol (APZ) is a Zurich/Geneva based architecture practice founded and operated by Lea Prati and Tieme Zwartbol. 

APZ works in the fields of architecture, research, education, urbanism and landscape.

APZ conceptualises, directs and executes projects ranging from urban planning to buildings, refurbishments and furniture; from idea to creation.

APZ works on commissioned and solicited projects for private and public clients. 

APZ combines craftsmanship with conceptual and ecological approach. 

APZ pays a lot of attention to details in their designs. 

APZ would like the resulting work to be simple, joyful and optimistic.

APZ’s work is often accessible, charming and, above all, useful.


Atelier Prati Zwartbol

Dienerstrasse 21 

8004 Zürich

+41 44 545 10 30


Lea Prati 

Studied architecture at the ETH Zurich and TU Delft, after graduation she was honered with the Ernst Schindler Foundation research grant. She regurarly participates in both competition juries and expert audience at several educational institutions. In 2022 she co-founded the multidisciplinary research-collective Indiana. Furthermore she’s in the BGA SIA council and active member of the Netzwerk Frau und SIA.


Tieme Zwartbol

Dutch-born and currently living and working in Zurich. After obtaining his Ing. degree in Rotterdam, continued his studies at the TU Delft and ETH Zurich. Worked in several international architecture firms in Switzerland and the Netherlands. From 2015-2018 he was an assistent tutor at the Lucerne University of Applied Sciences and Arts.

Clara Jacazio

Swiss-Italian with a master degree from the Accademia di architettura in Mendrisio. Worked with female photographer Helen Binet and gained architectural experience in London, Lyon and Geneva before joining APZ in 2020.


Predrag Bekcic, Estelle Bertholet, Gregory Bon, Martin Lepoutre, Pierre Marmy, Nadia Martin, Oana Popescu, Mirko Solinas