Building Density

– Net building density: the ratio of the ground coverage area of main architectural structures to the lot area (excluding the ground coverage area of outdoor structures such as decorative landscapes, swimming pools, parking lots, sports grounds and technical infrastructure works).

– Gross building density of an urban area: the ratio of the ground coverage area of main architectural structures to the total land area (the total land area may include: yards, roads, green areas, open spaces and non-construction areas).