After a uniquely robust pre-file public discussion period, the development team behind South Boston’s Edison Power plant revitalization has officially filed documentation with the city of Boston kicking off the project’s development review.

The letter of intent, filed Monday with the Boston Planning & Development Agency, proposes partial demolition and re-use of the existing power plant and building eight new structures over the next 10 to 15 years. All told, the project would span a combined 2.1 million square feet of residential, office, hotel, retail, restaurant and other commercial uses, along with parking, project manager Ralph Cox of Redgate Real Estate wrote in the letter.

Redgate and Hilco Redevelopment Partners are tackling the project as a joint venture redevelopment. Redgate and Hilco acquired the 15.2-acre former Exelon power plant site at the corner of Summer and First streets in South Boston last April for $24.25 million.

“Following on the recommendations of the literally hundreds of South Boston neighbors and others who participated in the BPDA’s two-month public engagement process, the project will convert this isolated and abandoned industrial property into a welcoming gateway for South Boston and will allow it to become, at long last, an inviting and exciting part of this great neighborhood,” Cox wrote in the April 24 letter of intent.

The letter of intent outlines six major project goals, many of which are highlighted in the 11-page vision plan the BPDA published late last month. The goals are: