Developer Rise Together has told the BPDA it will soon file detailed plans for two six-story residential buildings in Mattapan Square, one to replace a repair garage at 1590 Blue Hill Ave., the other behind it on River Street.

The Blue Hill Avenue building would have 65 residential units and a "locally owned and operated family-style sit-down restaurant," while the River Street building would have 100 residential units and a 44-space parking garage, the developer says in a "letter of intent" filed with the BPDA.

1590 Blue Hill Ave. filings and calendar.