I once lived in a LEED certified apartment complex. Unfortunately, I do not recall the specifics of their certification. My hot water would never get hot enough. I realized the hot water heater had a device on it to limit how often heating occurred. I promptly disabled it and had normal hot water again.

One of the other "green" aspects of the complex was that it only had compact car parking. However, the area I live in is rural/suburban and a very large portion of renters here work in the shale oil fields of the area. These workers drive trucks. Big trucks. The parking lot was always cramped mess. I often pondered the irony there and also how much more carbon was emitted by the body shops fixing all the dented doors.