Good article from The Real Deal... . A clip:

But while the commercial real estate market is already taking steps to go green, [Daniel Kaplan, senior partner at FXFowle Architects] said, the residential market isn't focused on greening yet, tending to rely on traditional selling points instead. "It's always puzzling to us that the residential market hasn't caught up to this [green trend]."

Of course, there ARE Green Manhattan apartments out there. Plenty of great ones, as a matter of fact. You know the term early adopters, right? It refers to the people who jump on board a new trend, gadget, or commodity before the masses. Think of the first wave of people to use Twitter, or buy a BlackBerry, or transform SoHo warehouses into lofts... whatever the case may be. They're the pioneers. Here's how this can apply to investment: As Green real estate really catches on (which WILL happen), early adopters, who got in while the getting was great, stand to watch their investments perform very well. Besides being fantastic homes, Green homeowners are charting the course of NYC's real estate future. How cool is that? Ready to take a look at some Green apartments in Manhattan that are available right now?