71 Commonwealth Blvd, New Castle, DE is a single family home that contains 1,296 sq ft and was built in 1960. It contains 4 bedrooms and 2.5 bathrooms. This home last sold for $199,900 in July 2015. The Zestimate for this house is $195,945, which has increased by $3,406 in the last 30 days. The Rent Zestimate for this home is $1,475/mo, which has decreased by $21/mo in the last 30 days. The property tax in 2017 was $1,412. The tax assessment in 2017 was $54,100.