Sustainability is more than just an environmental issue and this house in Vietnam shows how a home can be sustainable in more ways than one.
27 December 2018
Home Type: Landed house
Floor Area: 1,916sqft
Text by Paul McGillick
Think of sustainability and environmental issues come to mind with passive climate control, energy conservation and responsible use of materials. But other things are also subject to the imperative of sustainability – emotional and cultural sustainability, for example, economic sustainability and sustaining families from one generation to another with all the social and personal benefits that bring.
This house in the northern Vietnamese city of Hanoi is in a dense urban setting where lots of concrete and loss of greenery has created a noisy, polluted heat trap, making life especially difficult in the hot and humid summers. The architects have set out to create an environmentally, culturally and socially sustainable home within this urban jungle.
The 1,916sqft house is also in a flood-prone area, so it is elevated at ground level above anticipated flood levels. It is on an irregular plot, which the architects have exploited to create angled openings for visual variety and air circulation. From the street, the house clearly signals the intent behind its design, with its lush greenery and screen of hanging vines.
The house extends over three levels and like any multi-generational house, it’s planned to offer a balance between privacy and community. Hence, with the exception of one bedroom, the ground floor is the communal area with a free plan of living, dining and kitchen, an extending backyard, and three voids that act as garden courts, doubling as wind chimneys providing natural ventilation throughout the house.
The second level is the private domain and main bedroom area, while the third level provides storage and an altar room. But the third level is only partly enclosed. The remainder forms an open roof garden. For the grandparents, who come from a farming background, this provides a sense of continuity and guards against any sense of alienation in an urban setting. The garden is also a source of fresh herbs and vegetables for the extended family.
The house is oriented towards the east, allowing it to catch breezes in summer. However, this also makes it relatively cold in winter, so the openings need to be able to close. Still, the facade is designed to draw fresh air in and up through the entire building. At the same time, the greenery, which is both a skin for the building and its lungs, not only mitigates heat from the sun, but also counters air pollution and street noise.
There is a high degree of connectivity throughout the house, especially on the ground floor. But this connectivity is not so much with the urban outside but with an inner world. The house has its own natural landscape with internal spaces blending with the garden courts and their trees, which reach up to the second level. Spaces flow into one another and out to the courts, creating a relaxed and surprisingly spacious ambience for this sustainable home which is actually on quite a small plot.
D House by ARO studio is a finalist of the inaugural 2018 Habitus House of the Year.
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