Projects: Social buildings Dang Xa II, in Dang Xa, Gia Lam, Hanoi; Building investor: Viglacera Company Architecture designer: AG Ingo company, Singapore; Total land area 14,000m2, Construction area: 4,651m2; Constructions complex is included 04 dwelling units (V1, V2, V3, D10), V1, V2, V3 were built on No1 land, with ground yard, and D10 was built on No2 land. Ground yard is used for playing ground of children, shading trees. Dwelling unit V1 has 65 apartments, V2 and V3 have 84 apartments of each, D10 has 80 apartments; Buildings have 6 floors with first floor for parking, technical space and other public space. From 2nd floor to 6th floor, there are apartments with 45m2 to 70m2. Average price is 13.5millions/m2 for selling, much cheaper in comparison with other residential buildings in Hanoi (by half). One of emerging idea of Viglacera, which is also applied in this area, is that module apartments. The designer have chosen 06 modules of apartments to create different blocks (A1, A2, B1, B2,C1, C2) with simple structure for building easily. Viglacera is also the company who has challenged themselves with new generation of friendly environmental material and building appliances, which are also installed in the buildings such as building envelope's materials, sanitary equipments.