Benjamin Realty lists 81 homes for sale in Watertown, MA right now, with a median asking price of $850,000 (from $349,900 to $2,645,000). 9 listings came on the market in the last 7 days. By type: 50 condos, 16 multi-family homes and 15 single-family homes. The median asking price per square foot is $535. Median prices by size: one-bedrooms $375,000, two-bedrooms $562,400, three-bedrooms $950,000 and four or more bedrooms $1,472,000.