105 Walnut St, South Portland, ME is a single family home that contains 2,176 sq ft and was built in 1930. It contains 3 bedrooms and 2 bathrooms. This home last sold for $225,000 in October 2016. The Zestimate for this house is $342,588, which has decreased by $1,489 in the last 30 days. The Rent Zestimate for this home is $1,700/mo, which has decreased by $158/mo in the last 30 days. The property tax in 2017 was $4,106. The tax assessment in 2017 was $228,100, an increase of 1.2% over the previous year.