A new district designed to be eco-responsible, circular and with people at the heart of its concerns.

Soft mobility

Make way for soft mobility

Well connected to the public transport network and cycle paths, the Kiem 2050 project makes life without a car entirely possible and provides its residents with one bicycle parking space per bedroom.

Shared areas

Shared areas

Each of the 4 buildings at Kiem 2050 has shared indoor spaces (yoga room, laundry room, conservatory, library, multi-purpose room) and outdoor spaces (communal terraces, landscaped park, urban vegetable garden) that ensure neighbours can meet and talk in a relaxed atmosphere that encourages sharing. To make life easier for this community, a concierge service manages and maintains these shared spaces.

Water resources

Preserving water resources

Kiem 2050 reduces its residents' final consumption of drinking water by a third compared with the national average for a household. As part of its circular design approach, the eco-district recovers grey water, treats it and reuses it.

Renewable energy

Renewable energy

The solar panels installed on the roofs of the Kiem 2050 buildings and the ground-coupled heat exchanger enable residents to save energy while limiting their impact on the environment.

Active ground floors areas

Active ground floors areas

Ground floor areas and city spaces act as a real link between private and public life, energising the eco-district with a wide range of local services that further strengthen its community spirit.

Affordable quality of life

Affordable quality of life

In Kirchberg, Kiem 2025 offers homes that are on average 30% cheaper than market prices.

A building as a materials bank

A building as a materials bank

Most of the components of the Kiem 2050 wood-steel buildings can be dismantled and reused for new constructions. Most of them can be separated from other materials, making them easier to recycle.

Fresh, healthy air

Fresh, healthy air

The sustainable materials used in Kiem 2050 are bio-sourced, ensuring good air quality for occupants, and the ground-coupled heat exchanger means they can enjoy natural, environmentally-friendly air conditioning.

Fruit and vegetable

Local fruit and vegetable production

Eco-district residents can get together in the urban kitchen garden and grow their own fruit and vegetables, then enjoy the fruits of their labours.

Unspoilt nature

Unspoilt nature

In a move to respect the environment and improve residents’ quality of life, 80% of the plants in the district are indigenous and 8 nesting boxes are planned for each building.

Key figures

Shared outdoor spaces
Indoor shared spaces
Water savings compared with conventional buildings
30 %
Energy savings compared with conventional buildings
20 %
Number of flats
Affordable housing
Surface of flats
52 to
Number of bedrooms per flat
1 to 5

Building a sustainable future together

The architecture of Kiem 2050 is the result of an innovative and sustainable approach, designed to meet the needs of its residents while minimising its impact on the environment.

Circular approach

Kiem 2050 is a pilot building project designed with a circular approach. It favours the use of reusable materials and design flexibility to encourage the future redevelopment of spaces.

Wood-steel construction principle

The buildings at Kiem 2050 are constructed using a combination of wood and steel, which helps to reduce the project's carbon footprint while providing a solid, durable structure.

Natural light

The flats are designed to maximise natural light all year round, with large windows, terraces and loggias extending living spaces outwards.

Design flexibility

Offering practicality and flexibility to its occupants, the flats have flexible plinth-mounted electrical sockets and wireless switches.

Insulation and energy efficiency

Innovative and designed to optimise their energy efficiency, Kiem 2050 buildings are equipped with photovoltaic panels to produce renewable energy, Canadian wells to cool the air naturally and a system to regulate individual room temperatures.

Use of healthy materials

In the Cradle to Cradle approach, sustainable bio-based materials ensure healthy air in every interior space.

Water management

Recovering and treating grey water from showers and washbasins as part of a circular approach, Kiem 2050 also filters rainwater so that it can be reused safely, thereby generating additional savings.

Connecting to the neighbourhood

The buildings are separated by landscaped walkways to connect all the residents of the eco-neighbourhood. They also remain connected to the outside world thanks to the numerous bicycle parking spaces and charging points for electric cars.

Shared spaces

For a living experience that combines meeting people, sharing and conviviality, Kiem 2050 residents benefit from vast shared spaces, both outside and inside, enabling them to create their own community.

A harmonious life where everyone has their place

Kiem 2050 reinvents city life with buildings designed for the well-being of everyone, regardless of age or income. The eco-neighbourhood aims to bring together people who want to bond over shared values and live in a sustainable and attractive urban environment where sharing and living together are the key words.

Well-being for all

With a view to adapting to new lifestyles and changes in society in terms of work, housing and entertainment, Kiem 2050 aims to make a pleasant and affordable living environment accessible to all, with people at its heart.

Towards a sustainable future

In order to have a positive impact not only on its residents, but also on the environment, the entire project has been built using a comprehensive sustainable development approach. Innovative from building design to energy management, Kiem 2050 places the protection of its occupants and biodiversity at the heart of its aspirations.

KIEM 2050, much more than a building complex

It offers a shared vision for the future, with common values and uses to ensure a positive impact. This new district has been designed using a circular approach, placing the human and ecological pillars of sustainable development at the heart of its concerns: water, energy, social equity, mobility, outdoor spaces and the optimisation of resources.

Developed by

Logo Immobel
Logo Prefalux Home

Marketed by

Logo Prefalux Home
Logo Inowai


Logo Witry & Witry architecture et urbanisme

Initiated by

Logo Fond Kirchberg