Fast to build, climate-friendly and surprisingly elegant: the Green Steel Home in Weyhausen, Germany shows that modern living comfort and sustainable construction are not mutually exclusive. Steel meets smart home technology and, with innovative solutions from Gira, creates a modern, efficient and comfortable home.
Can steel feel homely and be sustainable at the same time? Architect Thorsten Rebbereh has proven exactly that with the Green Steel Home in Weyhausen, near Wolfsburg in Germany. In cooperation with Peiner Träger GmbH, he created a prototype home that combines architectural aesthetics, ecological responsibility and smart technology, completed in just two and a half months.
From industrial construction to a residential vision
The idea emerged almost by chance. While architect Thorsten Rebbereh was working on a logistics hall, his daughter expressed a wish for her own affordable and climate-friendly home. This sparked a new thought: why not transfer the advantages of steel construction to residential buildings and use steel that is as environmentally friendly as possible? What began as a spontaneous idea quickly became a clear vision: manufacturing homes from green steel.
Peiner Träger GmbH, part of the Salzgitter Group, produces CO₂-reduced steel from recycled scrap using energy-efficient electric arc furnaces.
The result of this collaboration is a carefully conceived prototype home that demonstrates how sustainability and modern living can go hand in hand.
Open steel structures and homely details show how industrial architecture becomes a home. Source: Green Steel Home
Fast, lightweight, aesthetic: the new elegance of steel
The Green Steel Home impresses with a clear, contemporary design language. Black steel meets warm oak wood, creating a contrast that feels inviting and full of character rather than cool.
Built on a poured concrete base slab, the prefabricated steel skeleton was assembled with millimetre precision. Load-bearing internal walls are completely eliminated, allowing maximum freedom in interior design. The combination of a self-supporting structure and precise prefabrication significantly reduces construction time and lowers costs.
In its standard configuration, the house offers a generous living area with gallery and open staircase across approximately 150 square metres. Without the open gallery space, up to 200 square metres of usable floor area with as many as eight rooms can be realised.
The prototype home is designed to demonstrate what is possible, not only in structural terms, but also aesthetically. A steel staircase with handcrafted oak handrails, colour-coordinated with the window frames, spans the open kitchen, dining and living area. Solid wood floors, ecological paints and a high-quality interior finish underline the ambition for both sustainability and design.
Smart technology for greater comfort
Modern Gira technology ensures intelligent living comfort throughout the home. At its core is the Gira KNX system, controlled via the Gira X1 server. This enables centralised control of lighting, heating, shading and irrigation, conveniently via app or through the elegant Gira G1 control centre.
Additional control options are provided by the Gira pushbutton sensor 4.55, allowing functions such as lighting scenes or temperature control to be accessed at the touch of a button. The system is complemented by switches and socket outlets from the Gira E2 design line in elegant matt black, which blend seamlessly into the minimalist interior. A door station from the Gira TX_44 design line completes the holistic concept, both functionally and visually.
The green gallery on the upper floor helps regulate the indoor climate and underlines the sustainable approach of the Green Steel Home. Source: Green Steel Home
Climate-friendly down to the smallest detail
The idea of residential construction using steel is not entirely new. What makes the Green Steel Home exceptional is the consistency with which every detail has been carefully considered. Potential weak points such as corrosion are addressed through the systematic avoidance of thermal bridges. Pergola, carport and canopy are structurally decoupled from the building, while the interior spaces are deliberately designed without niches or angles.
A pleasant indoor climate is ensured by an electric infrared heating system, efficiently supported by the rooftop photovoltaic installation.
Another highlight is the lush green gallery on the upper floor, which helps regulate the microclimate. It is automatically irrigated and, if required, even supplied with UV lighting.
The Green Steel Home demonstrates that sustainable residential construction is no longer a vision of the future. With recycled steel, contemporary design and smart Gira technology, it opens a new chapter in homebuilding that is fast, stylish and future-ready.
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