S House 3 is the third prototype house for low-income communities designed by Vo Trong Nghia Architects. It was conceived as a quickly built home in response to housing shortages resulting from natural disasters. The design integrates solutions such as natural lighting and ventilation within a modular precast structure.
Market Suggested Retail Price
Distributors / Implementing Organizations
Intellectural Property Type
Distributions to Date Status
Unique Design (Yes/No)
Intended number of occupants (#)
Duration of construction (days)
Footprint area (m²)
Number of storeys
Flammable flash point temperature (ºC)
Thermal insulating capacity (m²*K/W)
Maximum wind speed (km/h)
Structural Occupancy Category
Seismic Design Category
S House 3 is a 31.6 m² house that can be assembled in one day and it was designed to be transported by small boats to all Vietnam regions. Although the original project had only a single room, it was designed considering the possibility of dividing in multiple rooms according to the needs of the residents. The main structure is made from lightweight steel (1200 kg) and the walls are made of Slender steel lattice that support and rigidify the frames. The pedestal is incorporated with a concrete foundation. All components were designed to be lighter than 60 kg to facilitate transportation and construction. Different materials can be used for cladding and can be replaced by dwellers.
There is no technical support provided and users are expected to maintain the product on their own.
If there is any damage walls and roof can be replaced by the dwellers.
Manufacturer Specified Performance Parameters
All the components were designed to be lighter than 60kg to allow easy transportation and construction . The manufacturer informs that it takes three hours to assemble the whole steel structure and roof.
Vetted Performance Status
Builders should wear appropriate protective equipment such as hardhats, gloves and safety glasses while working to protect against physical injury commonly associated with heavy construction.
Complementary Technical Systems
Electricity, sanitation and water complementary technical system are required.
Academic Research and References
Compliance with regulations
This design does not specifically comply with any international or country-specific regulations.