Homes with a difference.

Haupt-Haus is an architectural office which has a main focus on the design of three-liter and passive houses.
The difference between a three-liter house and passive house is very small.

The highly insulated construction and the use of renewable energy such as wind and solar energy can reduce the heating costs up to 75%. The average annual heating costs at a three-liter house are under 350 €. The passive house heating costs are reduced even further. This allows for an extremely reliable financial planning.

These facts help you to be sure that your financial planning is rational.

We would be happy to give you a free consultation.

More than 10 years of experience in the construction of passive and low energy houses gives us some important advantages in comparison with other architectural firms. Mainly we work in Rhineland, but in general we work worldwide.