Our sustainability philosophy

Our guiding principle of making climate-friendly timber houses accessible to all was closely linked to a well-thought-out sustainability concept right from the start. The question of how we could combine the principles of modularity, flexibility, modernity and compactness of a building with sustainability was at the heart of our considerations.

Our solution: compact houses with minimal consumption and energy surplus! On request, you can get our houses ready to move into, fully equipped or even self-sufficient. Do you need more space? Just expand your house. Moving planned? Just take your house with you — our answer to changing times!

A full-fledged house with the insulation and sound values of a conventional residential building, but reduced to the most necessary space: Our compact houses optimize the living space per occupant from an average of 46 to 33 square meters (or less). Optimum insulation reduces energy consumption by 30%, and in conjunction with a photovoltaic system, we reach passive or plus energy levels.

Our photovoltaic systems are installed or integrated on the roof or in the terrace roof. A battery storage system in the technical room ensures that the electricity generated by the PV system is stored until you need it. A charging station in the carport allows you to reliably charge your e-car at home.

Attractive loans from KfW Bank for “renewable energy” are also available to ensure a reliable supply of electricity. Optionally, you can also use a self-sufficient water supply with a rainwater collection system. Your Heise house can be completely self-sufficient if you wish. However, we recommend a connection to the public supply network and it is also mandatory, at least in Germany.

But that's not all — we are pursuing balanced sustainability dimensions and are already on the right track!

Summarized here:

• ‍Social: We create affordable living space, make it easier to buy a home and promote high-quality jobs with fair wages. We currently have a proud women's quota of 33%.
• ‍Economically: Low profit margins enable us to offer affordable buildings and always pay attention to costs in order to ensure sustainable corporate security.
• ‍Ecological: Our homes have impressive features. With 96% less surface sealing, 20% less material consumption, 80% less maintenance costs, 33% less living space consumption and an impressive zero energy balance thanks to the photovoltaic system, we are setting standards in terms of environmental friendliness. Over the years of use, we strive for a CO2-free balance sheet — a goal that not only affects us, but also the future residents of our homes.
• ‍Innovation: Through innovative approaches such as complete prefabrication, digital processes and transparent processes, we are revolutionizing the construction industry. Our approach and methods are fundamentally different from industry practices and enable everyone to make high-quality housing affordable.
• ‍Flexibility: Our houses are flexible not only in terms of space, but also in terms of their lifespan. The option to expand or even move your house reflects changing needs and makes our solution a companion over the course of time.
• ‍Transparency: At Heise Haus, we focus on transparency in every step of the construction process. From prefabrication to delivery to the construction site — our customers experience full transparency and know exactly what they're getting. No hidden surprises, but a smooth process that creates trust.

This comprehensive approach to sustainability forms the basis of our vision: to make high-quality, climate-friendly housing solutions accessible to all, while focusing on the principles of social, economic and environmental responsibility.

We have already achieved a great deal, but we are still working hard to do more.