This is a private house project for the three-generation family located in an emerging residential area, 15-minutes drive from the center of Ho Chi Minh city, Vietnam. The newly built houses around the site form a highly dense neighborhood and they share the outer wall with each other. The site of project is in such a narrow site of 7 meter wide x 20 meter long. Among such typical highly dense residential development areas in Asia, we decide to propose a stradegy of housing that suitable for the tropical climate in which greenary and the residents live intertwinely.
▼住宅轴测分析图，the axon diagram of the house
The client’s first request is “a large green garden” where children can play and adults can have BBQ with their family and friends. In addition, the residents also expect a big swimming pool, spaces for exercise, a grandmother’s bedroom, a living room & a dining with kitchen, a sufficient parking lot – all on the ground floor. Hence, we have proposed to divide the idea of the “large green garden” into smaller connected gardens.
▼住宅外观局部，各层体量略微扭转，一系列彼此联系的小花园组成一个连续的“大型绿色花园”，partial exterior view of the house made of twisting volumes, smaller connected gardens create “a continuous large green garden”
▼住宅外观局部，立面上的绿植调节室内气候，partial exterior view, the greenery on the facade helps with adjusting the interior climate environment
连续的花园空间 | One Continuous Garden
Specifically, as the volume of the building is climbed from the ground floor, it is gradually set back while twisting. On the top floor, the house is configured to protrude a two meter cantilever to the main road. The stepped gardens of the house are placed interwinely with the terrace as they are connected and continuous to the top floor. Depending on the type of trees, they create an umbrage that filters the harsh sunlight and cool down the air for the house. In addition, each tree pots also functions as a blindfold from the main road.
▼从屋顶平台看住宅，viewing from the roof
On the other hand, the terraces are arranged on each floors with variety of size according to function. At some place, it is designed as a private garden that the residents can access directly from their bedroom. While in other space, the terrace becomes the public garden which everyone can gather. All of these gardens are individual spaces that are also “one continuous garden” where the residents and kids can go through by the steel staircase outside.
▼室外露台俯视图，各个小花园相互独立又彼此联系，top view of the terrace, all of smaller ngardens are individual spaces that are also “one continuous garden”
▼室外露台，室外的钢制楼梯将花园联系起来，the terrace, the steel staircase outside connects terrace gardens
In the interior space, the ground floor and the first floor are connected by a huge central void. It attaches all of the main funtional spaces such as the living room, the dining with kitchen, the library and the kids’ bedroom to become one space in which the residents can interact with each other. At the same time, through the big openings with different scales and proportions inside the house, the residents can also connect with the greenery outside the house. Thus, we hope that the house will be a bridge that connect people and people as well as people and nature.
▼首层空间中的起居兼餐厅空间，中央的通高虚空间将一二两层联系起来，the living and dining area on the ground floor, a central void connects the ground floor and the first floor
▼起居兼餐厅空间旁的游泳池，the swimming pool beside the living and dining area
环境策略 | Environmental Strategy
The gaps that are created by the shifted volumes allows the natural sunlight and cool wind to pass through. In such an elongated site where it is often narrow, hence we have created such open spaces for the house. As the direct sunlight is reduced by the greenary on the facade of the house, the residents’ future electricity usage of air condition will also be decreased.
▼从二层的儿童卧室看，一系列间隙空间将阳光引入室内空间，viewing from the kids bedroom on the first floor, the gaps allow the natural sunlight to pass through
Because of non-abundant budget, we are required to reduce the finishing cost for the house as low as possible. Therefore, we apply bricks as finishes, a method commonly used in the construction sites in Vietnam while at the same time reducing the construction expenses in general. In addition, as the labor cost was small, we were able to control the quality of arranging the brick on contruction site. Since brick is also a local material, the carbon footprint from transportation was greatly decreased.
▼从二层的图书室看，室内空间采用红砖饰面，viewing from the library on the first floor with brick finishes
▼从二层的图书室看，viewing from the library on the first floor
将人与人、人与自然联系起来 | Connect People and People, People to Nature
在过去的几年中，建筑事务所VTN architects一直致力于设计“树木之家（House for trees）”的系列项目，本住宅便是该系列的最新设计之一。在这个系列的项目中，建筑师不仅要在建筑内种植树木，还要针对树木创造一种新型的住宅，从而使住户的生活与自然更加紧密地交织在一起。
This project is one of the latest projects of the series project “House for trees” which we have been continuing during these past few years. Among them, we aimed for not only to plant trees in houses, but also to create a new type of house for trees which the life of residents and nature are more closely intertwined.
▼二层图书室室内，the interior view of the library on the first floor
▼三层的主卧，the master bedroom on the second floor
▼楼梯空间（左)，天窗（右），the stairs (left), the skylight (right)
▼首层平面图，ground floor plan
▼二层平面图，first floor plan
▼三层平面图，second floor plan
Principal Architects: Vo Trong Nghia, Tran Thi Hang
Design team: Takahito Yamada, Le Viet Minh Quoc, Mitsuyoshi Shingu
Office Credit: VTN architects (Vo Trong Nghia Architects)
Status: Built in 2019
Program: Private house
Location: Ho Chi Minh, Vietnam
Site area: 137.2m2
GFA: 174.8 m2
Contractor: Wind And Water House JSC
Photographs: Hiroyuki Oki