how many is builder square metre
But if you do not want a project home then you need to plan to spend from $900 per square metre up to $1200 per square metre as an Owner Builder. Then you need to compare that to the cost of a custom builder who is likely to charge you from $1100 per square metre to as much as $1500+ per square metre.ut if you do not want a project home then you need to plan to spend from $900 per square metre up to $1200 per square metre as an Owner Builder. Then you need to compare that to the cost of a custom builder who is likely to charge you from $1100 per square metre to as much as $1500+ per square metre.