1 Sunnyside St, Allenstown, NH is a single family home that contains 1,080 sq ft and was built in 1962. It contains 3 bedrooms and 1 bathroom. This home last sold for $180,000 in June 2017. The Zestimate for this house is $187,959, which has decreased by $407 in the last 30 days. The Rent Zestimate for this home is $1,450/mo, which has increased by $30/mo in the last 30 days. The property tax in 2017 was $5,667. The tax assessment in 2017 was $176,500, an increase of 27.2% over the previous year.