Williamstown Land For Sale Over 50K Below the Assessed Value! Build your dream home on this partially cleared, buildable 2+ acres in beautiful Williamstown that is now available for over 50K below the assessed value! Seasonal views of Mt. Greylock and of the Taconic Range. The two parcels (lots 52 and 53) are being sold as one property for 125K. They can be purchased individually for 70K and 75K separately. Public ”Wet” sewer available.