A 1-storey Japanese-roofed villa is a type of house that uses a roof system with a slope of 10-30 degrees, is built on land with a construction density of no more than 50% and has amenities such as a swimming pool, garden, etc. According to National Technical Regulation QCVN 03:2012/BXD, a villa is a type of house that uses a roof system with a slope of XNUMX-XNUMX degrees. It is built on land with a construction density of no more than XNUMX% and has amenities such as a swimming pool, garden, etc. According to National Technical Regulation QCVN XNUMX:XNUMX/BXD, a villa is a type of house that uses a roof system with a slope of XNUMX-XNUMX degrees.
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