Butterfly House


2011 - 2014




Prévessin-Moëns, France


Private House


140 sqm


Direct commission


Mitsuhiro Kanada, Arup
Thomas Jundt Ingénieurs Civils
Gratry Development

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.




Station square and station roof in Herisau, Switzerland
Current phase: construction documents

Benninger Areal, housing and retail development
Current phase: preliminary design

Interior design for an apartment in Park Tower, Zug
Recently completed

Mobility Hub / parking facility with retail component, Zug
Current phase: preliminary design

Parking garage with shop in Zug, Switzerland
Current phase: preliminary design

Riedmatt Ebikon / housing, retail, ateliers
Current phase: framework plan

Qube Ebikon / housing, retail, offices
Current phase: framework plan

House Chile, innovative single family home in forrest setting
Current phase: building permit documents

Buchs Areal Fegeren, building for precision-industry
Current phase: study

House Kyoto, community living, Japan
Current phase: study

Lachen SZ Alpenblickstrasse / high-rise housing
Current phase: study

Urban Design

Bahnstadt Nürtingen, Nürtingen
Current state: masterplan and function plan

Neugasse Zürich, urban design concept with public participation
Current state: presentation of urban design concept

Dessauer Strasse, Wolfsburg
Current state: competition waiting for further commission

Herisau site development, Herisau
Current state: process support and test planning

Technologiecluster Zug Masterplan, Zug
Current state: urban framework plan and design concept

Masterplan Dierikon, Switzerland
Current state: masterplan waiting for further commission

HafenCity Elbbrückenquartier, Hamburg
Current state: masterplan and framework plan

Wilhelmsburg Elbinselquartier, Hamburg
Current state: masterplan, function plan and typology studies

National Innovation Park Switzerland, Hub Zurich
Current state: Study on mobility-infrastructure

Leica Areal
Current state: study completed, next phase in planning

Innovation- and production park Patton Barracks, Heidelberg
Current state: urban framework plan

Wil West, Kanton Thurgau
Current state: urban framework plan

Visp Sägematte, Valais
Current state: study

Urban framework plan for the city of Zug
Current state: recently completed

Urban System Research

SmartUse / Space, Growth and BigData
Current state: ongoing

Winterthur 2040
Current state: ongoing

Harvard University Graduate School of Design / The Industrious City
Current state: in preparation

Development strategy for 3 communities in the Kanton St. Gallen, Switzerland


Zürich office

Flüelastrasse 10 8048 Zürich Switzerland (Google Maps)
T. +41 (0)43 243 6313 F. +41 (0)43 243 6315

Kyoto office

Jimukinoueda bldg. 602 21 Sakaimachi Gojo-Takakurakado Shimogyoku Kyoto Japan
T. +81 (0)75 744 1503