They are going to last a fraction of the time that that $45 / sqft house from 100 years ago lasted
They are going to last a fraction of the time that that $45 / sqft house from 100 years ago lasted
Also 250/sq ft is far from cheap/shoddy quality in much of the US. And with proper maintenance just about any house built to code in most places in the US will easily last longer than the average house built 100 years ago.
Lasting a long time does not mean a structure is better in every way. Old housing can be a challenge in terms of safety, cohesive design, lifestyle fit, land use, environmental concerns, etc.
In Japan, for instance, it is popular to frequently tear down housing rebuild it, and it works well for them.
I have lived in and fixed up many old houses with strong bones. They might stand for hundreds of years but everything attached to those bones is a patchwork of afterthoughts.
I haven't done the math, but I'd bet the energy efficiency requirements would more than make up for it. Uninsulated/underinsulated homes are a huge waste of energy.