The Dover Driver: How One Town's Exclusivity Creates a $530K Arbitrage Opportunity in Seven Neighbors

Dover, MA uses 1-acre minimum zoning and #1-ranked Dover-Sherborn schools to maintain a $1.73M median—but Sherborn shares the same elite schools for $1.19M ($530K less), creating the clearest educational arbitrage in Greater Boston. Dover's structural exclusivity generates measurable halo effects in seven neighbors: educational savings in Sherborn, aesthetic premiums in Needham/Wellesley, stability buffers in Medfield/Westwood, and a hard market wall at Walpole ($730K).