Bachtel Kulm Restaurant

Revitalizing a historic mountain restaurant

Hinwil, Switzerland
| Copyright Bachtelkulm Cooperative

The Challenge

The Challenge

The historic restaurant at Bachtel-Kulm required an extensive renovation as its building services, building envelope, and structural elements had reached the end of their service life. The challenge was to transform the building into an energy-efficient, future-ready destination while preserving its role as a publicly accessible recreational and community gathering place. Modern technologies needed to be integrated into a prominent historic landmark without compromising its character

Building Profile

Building Profile

Building type

Restaurant

Building owner

Genossenschaft Bachtel Kulm

Engineering consultant

Virtuos 3D AG

Construction Year

1894

Floor Area

740 m²

Program

Restaurant, dining spaces, event hall, public gathering spaces, recreational destination.

Phases

Conception (2024) / Realization (2025) / Monitoring (2025-2027)

Building type

Restaurant

Building owner

Genossenschaft Bachtel Kulm

Engineering consultant

Virtuos 3D AG

Construction Year

1894

Floor Area

740 m²

Program

Restaurant, dining spaces, event hall, public gathering spaces, recreational destination.

Phases

Conception (2024) / Realization (2025) / Monitoring (2025-2027)

Why this building

Bachtel-Kulm is a well-known public destination and community meeting place with strong regional significance. The project demonstrates how historic hospitality buildings can be comprehensively renovated to deliver major energy and comfort improvements while preserving cultural identity and public value. As many restaurants, inns, and recreational facilities across Europe face similar renovation challenges, the project offers valuable lessons for the sector.

Frictions encountered

  • Building services, building envelope, and structural components all required major renewal simultaneously.

  • Integrating modern building technologies into a historic destination with limited space availability.

  • Preserving the building's character and public appeal while achieving ambitious energy objectives.

  • Coordinating a deep renovation in a building that serves multiple hospitality and event functions.

  • Ensuring long-term operational performance through monitoring, controls, and optimization.

Measures planned/ implemented

  • Full building renovation

  • Ground-source heat pump

  • Photovoltaic installation

  • Heat-recovery ventilation

  • Demand-controlled energy distribution

  • Building automation system

  • Smart room controls

  • Energy monitoring and operational optimization

Co-benefits

The renovation preserves a beloved public destination while significantly improving comfort, energy performance, and operational efficiency. Modern building systems reduce energy demand and operating costs, securing the long-term viability of the restaurant and event venue while showcasing sustainable renovation approaches for hospitality buildings.

Martin Vögeli
„With the support of the Belimo Climate Foundation, we were able to turn our ambitions for energy efficiency, sustainability, and long-term performance into reality. The continued monitoring and optimization after completion have been particularly valuable in maximizing the building's performance.“
Martin Vögeli, Board Member, Bachtel Kulm Cooperative
Martin Vögeli
„With the support of the Belimo Climate Foundation, we were able to turn our ambitions for energy efficiency, sustainability, and long-term performance into reality. The continued monitoring and optimization after completion have been particularly valuable in maximizing the building's performance.“
Martin Vögeli, Board Member, Bachtel Kulm Cooperative