The impact could start before it’s even approved and it could last decades into the future. It will impact land values for acquisition of the new school site, as well as complementary uses surrounding the new school and closed school. In my hometown (pop 5,000) they moved the school from in town, near the commercial downtown area, to the outskirts where there was abundant land. The downtown businesses lost out on people driving through town to pick up their kids, and running errands, and kids eating at the businesses for lunch. Single and multi-family development popped up near where the new school was built. It also resulted in property taxes going up significantly, which caused some people to leave the district. However, it also resulted in a lot of families moving into the district so their kids could learn at a new top notch facility. For a small town a new school might be the biggest development project they’ve ever had, and not infrequently the school is the largest employer. In a bigger city, maybe less of a factor, but still impactful.