Why it is wrong to ask a contractor for a price ‘per square meter’?

Why it is wrong to ask a contractor for a price ‘per square meter’?

When starting on their journey on building their first home, it is very common that most people’s first line of enquiry is to call a contractor and ask for a cost ‘per square metre’ price. This, they feel, will give them a clear indication of what the total cost of the house build will be and whether the contractor offers value for money or not.

They then take the lowest price per square metre (psqm), to heart and compare other offers to this and then decide to appoint a company is based on whichever one offers the most competitive price, again, on this basis.

Great, so where’s the problem with that?