This designing type not only brings benefits to the environment, it helps also local economy, that most of the times uses natural resources to produce furniture, and the main positive aspect, it is always searching to save the most natural elements it can and although it is related to nature, there can also be sustainable designs in urban spaces, actually, the first world cities are trying to increase its use.
Bathroom water-saving systems, few electricity use and sustainable materials.
As houses are one of the main things that impact the environment, changing them can produce a positive big difference.