This eight-unit, 14,532-square-foot building dates from 1923 and includes five floor-throughs (and three smaller apartments on the first floor). It's also offering itself as a possible condo conversion. Price? $15,500,000.

The Church of Scientology put this 27,367-square-foot building up for sale late last year for $12,000,000. The Ruskin Gothic Revival dating from the 1870s has serious conversion potential: perhaps 25 apartments and/or condos; maybe a hotel. It began life as a 50-key inn.

This Mission Hill complex asking $10,500,000 is actually two distinct addresses that together total 32 apartments. According to its listing, the complex's 30 2-BRs make it perfect for "the roommate-centered rental demographic."

The 7,233-square-foot address is actually two buildings. Together they're asking $5,500,000. There are six apartments total, plus ground-floor retail.

There are five floor-through apartments in this 5,168-square-foot townhouse dating from 1900, each taking up a floor. It's asking $4,375,000 and has redevelopment potential.

This 3,256-square-foot building dating from 1899 contains eight studios, two studios with alcoves, and one 1-BR. It's asking $4,200,000.

This three-story, two-unit, extra-wide townhouse is asking $3,995,000. The spread, which dates from 1870, is essentially being sold as an owner-occupied opportunity to draw income from the other, lower unit.

This four-unit, 3,993-square-foot townhouse dating from the mid-1890s comes with a commercial unit on the ground floor that is triple-leased (e.g., the tenant carries more costs than a more traditional lease). The whole shebang wants $3,959,000.