Thu, 03/23/2023 - 09:27 Tech Insider Economy A demonstrator holds up a sign that says "Won't you be my neighbor?", a quote from the children's show Mister Rogers' Neighborhood, during the Arlington County board meeting in Arlington, Virginia, on July 16, 2022.Stefani Reynolds/Getty Images Tags economy, News, Real Estate, Housing, Virginia, Arlington Virginia, Density, affordable housing Source It took a progressive Virginia suburb 8 years to let developers build apartment…