A team of developers with Core Investments Inc. filed plans with the Boston Planning and Development Agency (BPDA) on Monday for a massive, mixed-use project on Dorchester Avenue near Andrew Square in South Boston.

Labeled “On the Dot,” the four-phase project would be laid out over 9.1 acres, including four new buildings, one of which would rise 15 stories at 505 Dot Ave. and contain roughly 670,000 square feet of mixed-use office lab, research, and pharmaceutical manufacturing retail spaces as well as 12,000 square feet of ground floor retail and expanded sidewalks. 

The site, which sits adjacent to the MBTA’s Andrew Square station, has been used as a metal scrap yard for decades.

“The project would transform this long-distressed site through a master plan project development agreement (PDA) containing approximately 2.5 million square feet of development,” the team wrote in the document. They note that the plan offers the potential for a range of mixed-use office, laboratory, research/development, pharmaceutical manufacturing and residential uses with retail or “active” ground floor uses in four different buildings. 

Core said it anticipates taking the master plan and the 505 Development Plan through the complete review process with the state’s Executive office of Energy and Environmental Affairs concurrent with the BPDA process.

The project is positioned within the BPDA’s PLAN: South Boston Dorchester Ave. Corridor, which envisions 12-16 million square feet of development. Under the plan, about half of that development would be allocated to housing. 

The letter of intent filed on Monday was signed by John C. Bissell II, president of Core Investments Inc.  The next step for the team will be to submit a Project Notification Form, or “PNF,” to the BPDA, a document that would go into much more detail and be available for public comment.