18 Union St, Gorham, ME is a single family home that contains 1,414 sq ft and was built in 1907. It contains 2 bedrooms and 1 bathroom. This home last sold for $193,500 in January 2017. The Zestimate for this house is $201,814, which has decreased by $2,344 in the last 30 days. The Rent Zestimate for this home is $1,650/mo, which has decreased by $8/mo in the last 30 days. The property tax in 2017 was $2,572. The tax assessment in 2017 was $150,400.