Completion Year : 2025
Location : Cam My, Dong Nai
Land Area : 1737 m2
Ground Floor Area : 116 m2
Number of Floors : 1
Construction : Phat Thanh Khoi (Steel structures)
Photography : Hiroyuki Oki
Contractors : Nha Xanh, 5G Construction Solution, Quyet Local Craftsmen, Quoc Anh Interior, An Plus Interior
The Second Farmstay marks the first step in our journey to research and develop the Farmstay model alongside the homeowner.
The project is located in Dong Nai — Southeast Vietnam — approximately 55 km from the under-construction LONG THANH INTERNATIONAL AIRPORT, 8 km from the NORTH-SOUTH EXPRESSWAY, and 20 km from the CHUA CHAN MOUNTAIN TOURIST AREA – GIA LAO PAGODA. Local young residents fondly refer to this area as “Lang Me City.”.
The homeowner is a “new generation” farmer who applies extensive scientific and technical research to agricultural production, differing greatly from traditional methods. Therefore, during the development phase, we collaborated closely to discuss water circulation, energy efficiency, and how the house functions in harmony with the surrounding orchards and pond. We planned a functional layout that seamlessly integrates accommodation, relaxation, and agricultural activities.
In the Southeast region, most families rely on boreholes for agriculture, a process that has nearly exhausted groundwater resources. In recent years, water levels have often been insufficient for continuous irrigation. Consequently, we prioritized a water storage pond to ensure a steady supply for the fruit orchard. Water is pumped from the well, stored in the pond, and then distributed to the garden.
Taking advantage of this, we created a pond that serves multiple purposes: irrigation, landscaping, and microclimate regulation. Additionally, the pond is used to grow aquatic vegetables—providing clean food for the family while naturally filtering the water. The owner also raises a moderate amount of fish to diversify daily meals and welcome guests from afar.
The house is clearly divided into two parts. The private areas consist of solid blocks: the altar room, bedrooms, kitchen, toilets, and sauna, all arranged to one side. This leaves the entire view of the pond for common spaces such as the living area, dining table, and porch.
In rural areas, when neighbors visit, they often sit on the porch to drink tea and chat rather than entering the living room. The living room is typically reserved for important family events or holidays. Thus, we arranged a small tea area in the middle of the pond, providing a private space for people to gather amidst the water landscape during leisure time.
On a daily basis, the living room serves as a communal space where the family gathers to watch TV every evening.
The surrounding garden is filled with various edible vegetables and fruit trees, enabling a nearly self-sufficient lifestyle with only occasional trips to the market to vary the meals. .
Beyond researching the establishment of a sustainable and self-sufficient lifestyle for a farmstay, we also explore construction solutions to gradually move towards a minimum emission building process.
After years in the industry, we have realized that traditional construction has a very negative impact on the living environment: from material extraction, cement production, and brick firing to transportation and the building process itself—all of which release a massive amount of emissions.
“The Second is the first practical prototype in our research on prefabricated housing solutions. We tentatively refer to it as a ‘semi-prefabricated’ project.
For the private functional blocks, we applied traditional construction methods with three simple painted brick units. These blocks are physically separated, with the gaps between them strategically designed to enhance ventilation and facilitate convection airflow from the pond into the house.”
For the common spaces and the roofing system, we experimented with a prefabricated galvanized steel frame. This is covered with insulated PU roofing sheets on top, and finished with a natural wood ceiling underneath.
The entire building envelope of the common area is composed of perforated metal sheets, steel frames, and prefabricated glass. This solves the problem of natural ventilation and lighting while providing protection without obstructing the panoramic view of the landscape.
The roof is also designed to extend toward the pond to reduce the impact of direct sunlight on the glass doors..
All these solutions aim to create a structure that adapts to the hot and dry climate of Southeast Vietnam, while minimizing human impact on the environment in line with a sustainable, self-sufficient farmstay model.
Furthermore, the project is the first field test of the 5G CONSTRUCTION SOLUTION — a next-generation modular prefabricated solution featuring “5 Reductions”:
+ Reduced complexity
+ Reduced labor
+ Reduced time
+ Reduced cost
+ Reduced emissions
With The Second, the project remained at a semi-prefabricated level with a total investment of approximately 1.5 billion VND (around 58,800 USD). Following its completion, we continue to refine and apply the 5G Construction Solution to subsequent.
If The Second were to apply the full 5G technology today, the total investment would only be around 1 billion VND (around 42,500 USD) – saving 25-30% of the budget, equivalent to save 400 million VND (around 15,255 USD).