Multi storey first floor house, south facing double bedroom plus living room also south facing with

This is generally a fire protection requirement. According to the high-rise fire code, the general spacing is 9 meters. In special circumstances, two high-rise buildings or high-rise buildings are adjacent to single-storey or multi-storey civil buildings not lower than the second-class fire resistance grade, and the fire spacing can be unlimited when the higher external wall is a firewall or the wall within the range of the roof height or below the roof of a lower building than the adjacent one is a firewall without doors and window openings.

When two high-rise buildings or high-rise buildings are adjacent to single-storey and multi-storey civil buildings not lower than the second-class fire resistance level, when the roof of the lower one is not provided with skylights, the fire resistance limit of the roof-bearing components is not lower, and the adjacent lower outer wall is a firewall, the fire spacing can be appropriately reduced, but should not be less than.

If two high-rise buildings or high-rise buildings are adjacent to single-storey and multi-storey civil buildings not lower than the second-class fire resistance grade, when the fire resistance limit of the adjacent higher external wall is not lower than that and the opening part of the wall is equipped with Grade A fire doors, windows or fire shutters, the fire spacing can be appropriately reduced, but should not be less.