451 Route 11d, Alton Bay, NH is a single family home that contains 972 sq ft and was built in 1975. It contains 2 bedrooms and 1 bathroom. This home last sold for $68,418 in December 2015. The Zestimate for this house is $166,912, which has decreased by $3,120 in the last 30 days. The Rent Zestimate for this home is $1,300/mo. The property tax in 2017 was $1,842. The tax assessment in 2017 was $143,200, an increase of 3.9% over the previous year.