Vacant Lot or Land for sale by owner in Guilford, CT 06437. Build your dream house on this peaceful, wooded parcel, just steps to Quonnipaug Lake. This gorgeous 4 1/2 acre property is tucked away in North Guilford, yet only 10 minutes to I-95. Enjoy nature in your neighborhood: across the street is 700 acres of Water Company property. Ideal area for hiking, cycling, horseback riding and cross-country skiing through miles of back country roads and trails. Quonnipaug Lake offers swimming, boating ... See site for full property details.