A developer has proposed turning a vacant Dorchester Avenue lot into a 56-unit residential building with space for two first-floor businesses.

In a filing with the BPDA, Tim Long says his $12-million 1970 Dorchester Ave. building, a block south of the T-stop entrance, would have 32 studios and 24 one-bedroom units. The studios would range in size from 450 to 692 square feet; the one-bedroom units from 625 to 759 square feet. The filing does not specify whether the units would be apartments or condos.

Long has proposed a total of five parking spaces, along with a roof deck, a gym/media room, and a bicycle-storage area with space for 56 bikes.

The lot is now used to store construction material for a nearby construction project. Long, who is partnering with Gregory and Brendan Feeney - the Feeney Brothers - and Sweet Life Bakery owner Michael Ahern, hopes to begin two years of construction later this year.

A public meeting on the proposal has been set for Thurs., Jan. 24 at 6:30 p.m. at All Saints Church, 209 Ashmont St., Dorchester. The BPDA-led meeting comes amid an ongoing public comment period that ends on Feb. 4. The BPDA project manager is John Campbell, who may be reached at john.campbell@boston.gov or 617-918-4282.

(This story has been updated to reflect the change in date for the BPDA meeting, which was initially set for Jan. 22. It is now scheduled for Jan. 24.)