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Modern House/Eco Passive House Kieffer

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Modern House/Eco Passive House Kieffer

Luxembourg
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Tom Beiler
Architect
Tom Beiler
"As the owner of a heating and ventilation company, the client placed great emphasis on quality craftsmanship and perfected detail solutions. He had a  desire for a sustainable wood house that would also meet the standards of a low-energy and passive house. Baufritz, with its system design, was able to guarantee the highest quality for such a construction project. Especially the price-performance ratio was convincing. The result: an excellent dream home given the Golden Cube Award for Ecology 2013, which gives the feeling of being at home and a holiday feeling at the same time."
 

House data

External Dimensions 18.70 x 19.63 m
Living Space 6360 ft²

Additional information

Modern Eco-passive House KIEFFER

 

Comfort and climate perfectly combined in the passive house

 
Seen from the street, the purist cube seems closed. Unsurprisingly so, as the Kieffer family from Luxembourg puts great value on both privacy and understatement. But there are other good reasons for this closed design:
Since their new Bauhaus was to meet modern ecological requirements and achieve passive house standard, as few windows as possible were installed on the northern façade in order to minimize heat losses. In addition, the double garage insulates the living area and acts as a kind of porch. To the south the building opens to the gardens on three levels and offers spectacular views. The natural topography of the hillside has been retained. Here, too, a clear design language is visible.
 

First class architecture

 
The Luxembourg architect Tom Beiler designed the home of the family of five in the Bauhaus style. For the construction only Baufritz came into consideration. "The comprehensive and integrated approach convinced us. We were unable to find such high design quality, coupled with ecological high-tech architecture, in any other provider," explains the owner. "The vertical integration also inspired us. Just like with an automobile where you get many technical details that have already been tested hundreds of times. This guarantees a smooth course of events. "

The façade reveals tension from the different materiality of organic mineral plaster and larch planking. The 37 cm thick "complete-solution wall" of wood shavings that are either obtained in production or have originated from FSC certified timber provide perfect thermal insulation.
The reduced lines have also been consistently maintained inside. Generous views underline the open architecture with a gallery on the ground floor. Living, dining and kitchen area and the office are designed as one room. Cleverly, the office can be separated with a sliding shelf module if required. With the floor to ceiling triple-glazed windows, surrounding the dining table and kitchen island, nature can be experienced indoors. The parapet of the terrace is also made of glass so the family can feel surrounded by the landscape and its ever-changing interplay of colours. A single staircase leads to the upper floor. The parents have their own space over the entire side of the house facing the garden. Bedroom, dressing room and bathroom are adjacent. A further retreat for the owners is the generous library at the back. Two of the three children's rooms are located towards the road. And there are no crowds in the morning for the shower as the Kieffers had two further bathrooms installed.

The favourite place for the family is in the basement, especially in the summer months.  They converted the originally planned hobby room into a second kitchen, so that they can enjoy the outdoor area throughout the day, without having to walk long distances. Swimming in the pond, sitting on the patio, cooking with the windows open - this became a perfect holiday paradise. A perfect indoor climate is ensured by underfloor heating as well as a "Complete-Plus" solution ventilation. Owing to the high standard of insulation the passive house consumes very little energy. Waste heat from the Kieffer family and household appliances, as well as solar energy are enough to heat the passive house almost completely.