Marcus & Millichap recently sold a 12-unit apartment building in South Boston for $2.1 million.

Evan D. Griffith, a senior investment specialist with the commercial real estate investment firm, represented the seller, a dual family trust that had owned the building for decades, and also procured the buyer, a private investor not named in the press release.

The property, 28 – 38 L St., was built in 1920 and is located at the nexus of South Boston, the Seaport District and Fort Point. The property consists of two studios and 10 one-bedroom units.

"South Boston continues to be one of the hottest submarkets in the Boston Metro area. With Southie only having a handful of buildings between 10-50 units, it is not surprising to see a building under the same ownership for decades," Griffith said in a statement. "The entire block of L Street is booming right now as developers look to finish off several new construction projects. The prime location coupled with future development in the pipeline put it in an optimal position to provide strong short- and long-term returns."