"The kind of benefits we see from green building might include increased tenant retention, faster absorption and higher rents based on higher productivity as tenants gain experience in better work environments," said Norm Miller, vice president, analytics, CoStar Group. "Right now, there are clear advantages through increased absorption and higher rents for most but not all markets, and there’s a significant payoff for long-term oriented owners. But we're going to continue to monitor and study these benefits and costs." Read more