Overlooking the city of Oslo from the Holmenkollen-hills, Villa Gruppo is a cluster involving three separate family units. The volumes of these units reflect the topography of the site. Where the altitude and the closeness to nature are the main considerations. Placement of the terraced volumes makes it airy and brings the forest-floor into the atrium.
The material palette reinforces the intimacy of the relationship between architecture and surroundings, with walls finished in silvered pine, whitewashed bricks and decks made from slate. The roof is covered with colorful lush plants.
Sedum roof is used on the villas. This is a “green” roof where different plants are laid out like a carpet. In Norway, we have 16 different species. There are many perks with using sedum roofing. Not only does it look beautiful, but it also cleans the air and reduces pollution in the area. Something which is highly important in cities. The sedum plants are following the seasons – during the summer the roofs are green and lush with colorful flowers, by the autumn it has changed into different shades of red and orange. It also functions as isolation of the house – both towards the heat and cold. This can again lead to reduced costs of heating, and cooling in the building. More often sedum roofing is chosen on larger building projects – especially in megacities.