The next phase of the Waterside Place development in Boston’s Seaport District would include 312 apartments in a 23-story tower, under the latest plans submitted to the Boston Redevelopment Authority.

The project built on former parking lot parcels leased from Massport has gone through various iterations since 2007, culminating in the opening of the 20-story, 236-unit Waterside Place phase 1A apartment tower in early 2014.

In December, Boston-based developer Drew Co. dropped plans for a 55,000-square-foot supermarket and innovation office space, citing lack of demand, and indicated it would build a 21-story, 278-unit apartment tower at the 501 Congress St. site. Plans now call for a 345,000-square-foot residential building with 312 apartments, 84 second-floor parking spaces and 2,000 square feet of retail space.

The latest plans would include 22 units on-site that would be restricted to households making no more than 70 percent of the area median income, 19 short of the 41 required under the city’s inclusionary development policy. To cover the difference, Drew Co. would pay $4.3 million into a city fund to support affordable housing off-site.

Subject to BRA approval, the project would break ground this fall as residential development accelerates in the Seaport.

More than 800 apartments are scheduled to open in 2017 at Berkshire Group’s Benjamin and Via complexes at One Seaport Square.

Skanska USA and Twining Properties began leasing in October at the 346-unit Watermark Seaport rental tower at 85 Seaport Blvd.

Cottonwood Management plans to break ground later this year on a 735-unit apartment and condo development on Seaport Square parcels M1 and M2 at Congress Street and Pier 4 Boulevard (previously East Service Road).

Boston-based Cronin Group, owners of the Whiskey Priest and Atlantic Beer Garden restaurants at 150 Seaport Blvd., propose replacing the restaurants with 105 condos in a 22-story, 263,000-square-foot tower.