20 Hall St, Portland, ME is a single family home that contains 1,046 sq ft and was built in 1941. It contains 3 bedrooms and 1 bathroom. This home last sold for $215,000 in December 2016. The Zestimate for this house is $254,592, which has decreased by $1,730 in the last 30 days. The Rent Zestimate for this home is $1,750/mo, which has increased by $42/mo in the last 30 days. The property tax in 2017 was $3,953. The tax assessment in 2017 was $182,600.