4 gobsmacking Boston houses that recently sold really fast

Boston’s single-family market is one of the most competitive of its kind in the U.S.

Case in point: These four houses that sold recently after only relatively short periods of time on the block. (Note: None of the deals have closed.)

Each is gorgeous in its own way.

↑ The eight-room, 1,917-square-foot colonial at 48 Anawan Avenue in the Roslindale-West Roxbury borderlands went on sale on August 15 and had a pending deal by August 23.

The house, which dates from 1915 and was asking $724,999 through Redfin, includes a finished third floor, built-in shelves, and two porches.

↑ The eight-room, 1,713-square-foot Colonial at 19 Druid Street in Dorchester’s Lower Mills went on sale on August 16 for $525,000 through Re/Max Leading Edge and had a deal pending nine days later.

The listing touted the three-bedroom house as “comfortable as is” before noting, “with some updates & expansion potential, it could be amazing!”

Either way, with that relatively low tag, the house instantly became one of those urban dreams: An affordable fixer-upper in an awesome neighborhood.

↑ The seven-room, 1,320-square-foot house at 145 Arlington Street in Brighton, which includes a finished basement with the potential for a bedroom suite, went on sale through Redfin on August 23 for $699,000.

It had a deal within eight days.

There’s also quite a lush yard about the place and the potential for three bedrooms.

↑ The two-bedroom, two-bathroom house at 4 North Mead Street Court in Charlestown, which runs to just over 1,000 square feet, went on sale through Paul Campano on August 17 for $664,900.

The de facto tiny house had a deal before the end of the month.

Recently renovated in parts, it includes central air, a new W/D, and a private patio.