Dover, MA: How New Tax Rules and Zoning Mandates Are Reshaping High-End Home Sales in 2025-2026

Three 2025 regulatory changes directly impact Dover's $1M+ market: (1) New 4% tax withholding on non-resident sellers (Nov 1, 2025) affects virtually all Dover sales; (2) MBTA Communities Act compliance preserves state grants but introduces multifamily zoning; (3) Proposition 2½ override pressures mount statewide but Dover remains balanced—for now. Dover's September 2025 zoning overlay (County Court/Tisdale Drive) maintains grant eligibility while minimizing density impact.