Please bear in mind that using cost per square meter estimates are not accurate and is used in designing only. For example: a 6m x 6m or 36 square meter Master Bedroom can be done elegantly at P20,000 per square meter while the same 6m x 6m or 36 square meter area with 2 bedroom, 2 toilet and baths and 1 kitchen can go as high as P25,000 per square meter with only economical finish due to more partitions, doors, outlets, plumbing lines, electrical lines etc. So bottom line, plans are needed (at least floor plans) so that an accurate estimate can be made.