Ersatzneubau Winkel

ERSATZNEUBAU WINKEL

Kollektiv.w AG

Ersatzneubau Winkel
© Benjamin Kunz

ARCHITECTS
Kollektiv.w AG

LEAD ARCHITECTS
Flavio Staffelbach, Tobias Küchler, Christian Tschopp

LEAD TEAM
Flavio Staffelbach

DESIGN TEAM
Tobias Küchler

TECHNICAL TEAM
Christian Tschopp

PHOTOGRAPHS
Benjamin Kunz

AREA
122 m²

YEAR
2024

LOCATION
Roggliswil, Switzerland

CATEGORY
Residential Architecture, Houses

Ersatzneubau Winkel
© Benjamin Kunz

English description provided by the architects.

A House in the Green – Nestled between residential buildings and mature trees stood a small former production hall.

Originally, it was to be preserved and extended with a senior-friendly apartment, but structural assessments revealed that this would only be possible with extensive interventions.

The new building integrates harmoniously into its surroundings. Only the staircase was added to the south side of the three-story structure.

Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz

The simple yet confident façade blends seamlessly with the existing typology. Wood and concrete create a balance between warmth and durability.

Due to these challenges and the limited space, a replacement building was planned, with a floor plan based on the former hall.

The exposed concrete base level and the attached staircase core emphasize the functional use of these areas. Instead of a basement, the garage, workshop, and technical room were placed on the ground floor.

Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz

To ensure accessibility for the senior apartment, the staircase was detached from the main volume and an elevator was integrated.

The residential floors feature wooden cladding. Vertical battens define the window sizes, creating a clear façade structure. The bedrooms are flooded with natural light through up to three adjacent windows.

Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz

Architectural highlights include the lift-and-slide door to the terrace and the striking round window in the living room. A green glaze enhances the building's natural aesthetic, ensuring a harmonious integration into the surrounding landscape.


Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz


Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz
Ersatzneubau Winkel
© Benjamin Kunz


Ersatzneubau Winkel
Ground Floor Plan
Ersatzneubau Winkel
First Floor Plan
Ersatzneubau Winkel
Second Floor Plan


Ersatzneubau Winkel
Cross Section
Ersatzneubau Winkel
Longitudinal Section


Ersatzneubau Winkel
West Elevation
Ersatzneubau Winkel
East Elevation
Ersatzneubau Winkel
South Elevation
Ersatzneubau Winkel
North Elevation


Ersatzneubau Winkel
Situation