The criteria for this transformation was generated by a variety of international professionals with a common goal; to take a very traditional single family house and turn it into a contemporary, passive home constructed with innovative techniques with a perspective of space and extremely low energy consumption.
As a whole, the renovation and addition makes better use of the warm southern sun, the soft tenured northern light, and re-establishes itself to its surroundings. The two-story addition and renovation has erased the fragmentation of well-defined rooms. Spaces now flow freely into one another taking advantage of natural daylight, views and the garden.
Inside the new addition, the entry level has been lowered. The kitchen and lounge area now bleed into the garden connected by a wood terrace. This space is enclosed in two sides by a triple glazed veranda and creates a shared space for the interior and exterior. Therefore, boundaries between interior and exterior are now less defined.
As of 2017, this home is one of only 115 houses in Luxembourg to achieve the „Gréng Hausnummer“. The current energy consumption is 1/10th of the value prior to the renovation, with energy savings exceeding 5 tons of CO2 per year while doubling the surface of livable space.
The core of the old house has remained and has been wrapped with compressed-wood insulating panels (6-10 cm). The completely renovated roof, raised by 1 meter, consists of a standard rafters structure with 22 mm of compressed-wood panels and 24 cm of celullose.
The walls and floors of the addition are made of a massive wood structure. (Toma Holz100) This system was chosen, not only for its energy benefits, but also due to its lightness, precision and timing qualities. The addition has an additional 10 cm of insulation and a wood facade.