The criteria for this transformation was generated by the 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 freely flow 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 on 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, the 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 rennovation, with energy savings exceeding 5 tonnes of C02 per year while doubling the surface of liveable space.
The core of the old house has remained and has been wrapped with compressed-wood insulating panels (6-10cm). The completely renovated roof, raised by 1 meter, consists of a standard rafters structure with 22mm of compressed-wood panels and 24cm of cellulose.
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 extra 10cm of insulation and a wood facade.
The preliminary meetings between the client and the architect for the renovation of this home was a constant dialogue of professional experiences and ideas, which together with the different cultural backgrounds of the participants, generated the criteria from which the design evolved.
It was clear from the beginning that the house should be transformed into a contemporary home from a perspective of space, construction techniques and energy.