56 Atlantic St, Portland, ME is a multi family home that contains 2,241 sq ft and was built in 1910. It contains 0 bedroom and 3 bathrooms. This home last sold for $475,000 in June 2017. The Zestimate for this house is $541,271, which has increased by $12,165 in the last 30 days. The Rent Zestimate for this home is $1,800/mo. The property tax in 2017 was $5,965. The tax assessment in 2017 was $275,500.