Not to say there's nothing wrong with modern construction, but keep in mind that most roman buildings also only lasted a few decades. You only see that ones that didn't disappear.

Also, do we really want to build houses that are meant to last 2000 years? It seems expensive and very impractical when you want to tear it down to build something new.

I don’t know if that is the right approach. While I am sure fashions changed in Ancient Rome, I am not sure how fast the pace of innovation was. Within a hundred years modern building techniques have changed massively. I know certain Europeans always love to tout their stone homes but for lots of the world it’s not very practical or cost effective.

Those Roman buildings are not what you want to live in. Just adding electric lights which you want is going to be a major effort and likely ruin a lot of what made it a nice building in the day. Not to mention you want indoor plumbing (without the lead pipes). Modern insulation so you can have modern HVAC...

Or at least have buildings be easily reconfigurable.