Natural & Built Environments is a company that builds apartments, multi-use spaces, retail, offices, and for sale communities. Typically we maintain a majority stake- often 100% ownership.For those new to the term, LEED is the highest level of green building certification in the world, where every detail is scrutinized. There are tiers that are awarded, the highest being LEED Platinum.our communities, and our world has been an internal responsibility and culture at Natural and Built Environments. Since 2010, all of our projects have been LEED certified- most at the highest level, LEED Platinum. We are proud to hold 34 certificates which is the highest number held by any private or public company in Washington State.