Butterfly House


2011 - 2014




Prévessin-Moëns, France


Private House


140 sqm


Direct commission


Mitsuhiro Kanada, Arup
Thomas Jundt Ingénieurs Civils
Gratry Development


Mitsuhiro Kanada, Arup, Tokyo; Thomas Jundt Ingénieurs Civils, Carouge

Site supervision:

Gratry Development, Geneva


Rendertaxi, Aachen

Photo Credit:

Adrien Buchet

Prévessin-Moëns, France

This project is a small residential house designed to be built next to the client’s parents’ house in Prevessin-Moens, Ain in France near Switzerland’s border and the Geneva airport. The site is located in a quiet residential area with trees, landscapes, and mountain views. In 2011 Hosoya Schaefer were commissioned to design a house where the client could live independently in a light and open structure that nevertheless provides privacy from her parents’ house.

Upon visiting the site, Hosoya Schaefer were most impressed by the garden that was the center of the family’s activities. Thus, when building a new house in this garden, two small attached buildings were proposed in order to minimize the volume of the house. The house consists of two skewed boxes that intersect one another, branching out from each other like a node. This node forms a central pathway from which the different spaces of the house stem. The house has also been designed to provide views of nature, of the gardens and trees, from anywhere in the interior. The outdoor space of one volume of the house is thus oriented to provide a view of the mountain and to allow easy access to the shared south garden. The exterior of the house negotiates between an open façade toward the south connecting these views and a closed façade to the north providing privacy.




Herrliberg-Feldmeilen station, 2020 –
Current state: framework plan

Haus Myrte, Wädenswil, 2022 –
Current phase: tender

House Renovation, Geneva, 2021 –
Current phase: ongoing

Airport Engadin, St. Moritz, 2020 –
Current phase: construction project

Cooperative Housing, Wetzikon, 2020 –
Current phase: tender, 2020 –
Current phase: Project phases design to operation

ZHA, Boulevard, Hönggerberg Campus, 2020 –
Current state: ongoing (with Studio Vulkan)

Wilhelmsburg Rowing Club, 2020 –
Current phase: execution planning

Primary School Christoph Merian, Basel, 2019 –
Current phase: construction project

Station Square and Roof, Herisau 2015 –
Current phase: tender

MEWA-Areal, Wädenswil, 2018 –
Transformation Project from the former industrial estate to the mixed-use development with housing
Current phase: framework plan

Viererfeld, Bern, 2018 –
Current phase: on hold

Urban Design

Bahnhof Romanshorn, 2022 –
Current state: study (with Sudio Vulkan)

Kaserne Aarau, 2022 –
Current state: urban framework

Areale Wittenbach, 2022 –
Current state: urban design commission

Stiftungsareal Neumünster, 2022 –
Current state: study

Kieler Schloss, 2022 –
Current state: Public think tank on usage and architecture

Campus Heidelberg, 2021 –
Current state: Masterplan process, in-depth studies

Otterbach Süd, 2020 –
Current state: urban framework plan

Innovation Park Bergedorf, 2020 –
Current state: urban framework

Station Area Dietikon, 2019 –
Current state: urban framework plan

Campus Bochum, 2018 –
Current state: project support

Metalli, Zug, 2017 –
Current state: project support

Bahnstadt Nürtingen, 2017 –
Current state: project support

Areal Neugasse Zürich, 2016 –
Current state: completion of master plan, public consultation

Elbinselquartier Wilhelmsburg, Hamburg, 2015 –
Current state: project support

Tech Cluster Zug, 2015 –
Current state: transformation plan

Station Herisau, 2013 –
Current state: areal development

KNZ Wil West, Thurgau / St. Gallen, 2011 –
Current state: project support

Urban System Research

Metaverse, 2022 –
Current state: ongoing

Entwicklungskonzept Würzenbach, 2022 –
Current state: ongoing

ESP Hochdorf, 2021 –
Current state: spatial-urban as well as use- and circular-based development concept

Deep Urbanism, 2021 –
Current state: ongoing

cividi gmbh – civic data intelligence, 2019 –
Digital tools for the analogue city
Current state: ongoing


Zürich office

Flüelastrasse 10, 8048 Zürich, Switzerland (Google Maps)
T. +41 43 243 6313F. +41 43 243 6315


CAREER: (Please refer to our OFFICE > CAREER section for further information)

Kyoto office

Jimukinoueda bldg. 603, 21 Sakaicho, Gojo-Takakurakado, Shimogyoku, Kyoto 600-8191, Japan
T. +81 75 744 1503