Future of building

Performance capability in modern prefabricated house construction.


OIKOS Group - Europe's largest prefabricated house developer.

OIKOS is the community of quality and values for modern prefabricated house construction in Germany and beyond. 

We unite the Marken Bien-Zenker, Hanse Haus and Living Haus under one roof. Each brand retains its own character. And every brand brings its skills to the group. As a group, we stand for ecological, economic and social performance. That's why we focus on sustainable innovation and responsibility. For people, nature and companies.

OIKOS thus brings together the competencies of German engineering and perfect planning right through to fitting out the finished property.

A powerfull community

This makes OIKOS Group an efficient partner for everyone who wants to participate in the future of construction and building: Investors, project developers, suppliers and, as customers of our brands, families planning to build their own house tomorrow.

To be found everywhere in Germany

Best practice examples of our work and our quality promise can be found throughout Germany in the form of show houses. The properties - realised more than 100,000 times together with enthusiastic client families - are also convincing. In 2019 alone, there were 1,392 houses from our brands. 

Every house stands for sustainability, quality, value and economy.



This is why we are repeatedly named »Germany's customer champion« and were awarded by Focus Money in 2020 for the highest customer satisfaction in premium prefabricated houses.

The OIKOS Group is one of the largest prefabricated house builders in Europe. We stand for a high level of quality and the integration of sustainability, innovation and responsibility into our value chain. As a company, we orient ourselves to the wishes of our construction families at every step of the way. Here are the reasons why.