Certainly there is no answer to your question, property’s are not "valued" by the square metre be it land or improvement on land.
Determining factors in establishing value are
1) Street, Location
2) House size, number of bedrooms, quality of build and importantly condition
3) Land size, but not only size in general but frontage size and land depth
4) Surrounding property’s
5) Economic factors outside anyone’s control
And other factors in determining value.
I have sold homes in Bossley park that "Appear" to be identical, but difference in price is measured in the hundreds of thousands of dollars.
CENTURY 21 BAYSIDE
0412 567 784 24 hours
26 Clareville Ave Dolls Point N.S.W 2219
"YOUR AWARD WINNING AGENT"
This year celebrating our 29th anniversary