The former Domino Sugar refinery site on the Mystic River in Charlestown has limited the public’s access to the waterfront for decades. Now a developer is proposing to transform the 21-acre site with about 1.7 million square feet of mixed-use and open space.

Braintree-based real estate company The Flatley Co. has kicked off the development review process for 425 Medford St. in Charlestown. The Flatley Co. also owns the nearby Schrafft Center, a former candy factory with prominent clocktower.

As part of the 425 Medford project, The Flatley Co. has also pitched a 22-foot high flood barrier, that will be built to standards that aim to prevent future coastal flooding. That barrier will be built along a newly proposed three-quarter-mile public space on the Mystic River, including an extension of Boston’s Harborwalk, recreational and park areas, a public dock, launch areas for boats and kayaks as well as public look-out spots. Read the full article here.