Singapore legislation
Regulation 31
of Boundaries and Survey Maps (Conduct of Cadastral Surveys) Rules 2005
Regulation 31
Calculated and scaled areas
Subregulation 1
Areas must be computed using any appropriate mathematical formula from the co‑ordinates of the land lot, provided that the area computed using a particular mathematical formula does not differ by more than one hundredth of a square metre when the area of the same land lot is computed using another mathematical formula.
Subregulation 2
Co-ordinates correct to 3 decimal places are to be used.
Subregulation 3
Areas must be calculated and entered to the nearest tenth of a square metre.
Subregulation 4
Scaled areas, where applicable, must be entered to the nearest square metre and distinguished from other areas by the abbreviation “Sc.” that is entered after the scaled areas.