PO4 seiler + den hartog architekten (Zürich)

Zwinglistrasse 6a, 8004 Zürich Zwinglistrasse 6a
8004 Zürich

About Us

PO4 is a Zurich-based architecture firm specializing in residential construction, renovations, building additions, and timber construction, led by Alexa den Hartog and Yves Seiler. We personally oversee projects from the initial concept through to completion. The foundation of our work is dialogue: with clients, government agencies, and tradespeople—all as a team. Through this iterative process, we develop a tailored, sustainable, and compelling solution for every situation.

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Services

Architect

Site management

Construction planning

Redevelopment, renovation, conversion

New build

Languages

French

English

German

Location and contact

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PO4 seiler + den hartog architekten

office address
Zwinglistrasse 6a 8004 Zürich
Alexa den Hartog
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