Cost per square meter is a misleading measure. A model that assigns a fixed price to a 0 m2 home and an additional price for each square meter is a better match for both construction costs and subjective utility.
Or maybe the additional price should be based on the number of rooms instead. Adding empty space by making the rooms bigger is cheap, but extra rooms are usually more valuable to those on a limited budget.
Where I live in California, construction itself has become unaffordable. Even if the land were free, construction and permits are now so expensive that it's impossible to build affordable housing without subsidies.
Or maybe the additional price should be based on the number of rooms instead. Adding empty space by making the rooms bigger is cheap, but extra rooms are usually more valuable to those on a limited budget.
Where I live in California, construction itself has become unaffordable. Even if the land were free, construction and permits are now so expensive that it's impossible to build affordable housing without subsidies.