A developer signaled Thursday he hopes to build a five-story building with 90 tiny apartments at 115-121 Boston St., behind the ScrubaDub and near where a 403-unit complex on Jan Karski Way won approval in 2021.

Developer Adam Burns' letter of intent, filed with the BPDA, says he hopes to soon file detailed plans for his building, which would include apartments smaller than normally required by the city as part of a city pilot to reduce rent prices. Some 12 of the units would be rented as affordable.

Burns's proposal calls for 57 parking spaces - 41 for residents and 16 for the tenants of ground-floor commercial space in the building. In addition to South Bay Center, the building would also be within "easy walking distance" of the Andrew Red Line station and a half-mile from a Fairmount Line commuter-rail stop.

The new building would replace an existing one-story commercial building on the site.

In addition to housing at South Bay and the approved project on Jan Karski Way, the city in recent years has approved new residential buildings on or near Allstate Road, most recently on Tuesday, when the Zoning Board of Appeal approved a nine-unit building on Allstate Road, near an earlier approved 191-unit apartment and condo complex.

115-121 Boston St. filings and meeting schedule.