It should be an important goal to plan, construct and operate in a manner that reduces negative impacts on one's site and surroundings. This begins with the design of a building(s), followed by the construction phase and continues on to day-to-day use. Although there will always be some level of impact as a result of building and living in an area, there should always be some effort made to reduce those impacts.
Begin to investigate what exists on site and the impacts on it.