That caught my eye as well! https://framehome.com/ https://framehome.com/ I once stayed very close to the Clinton Hill, Brooklyn location they mention, and ma

That caught my eye as well! https://framehome.com/ https://framehome.com/ I once stayed very close to the Clinton Hill, Brooklyn location they mention, and may be in the market for an apartment/home soon. Do you or your father have any pointers for evaluating a building like that? Or any ways to keep up to date on such developments? I'm sorta surprised it's in NYC because my understanding is that city living is already efficient compared to single family home living? i.e. in terms of the energy cost per person. Also I imagine older buildings are not great in terms of efficiency compared to new construction. One thing I noticed in NYC is that even relatively expensive (e.g. pre-war) buildings have in-window A/C units.