Members of the Columbia-Savin Hill Civic Association got an update on several developments in the bustling area at the group’s monthly meeting Monday.

Dot Block: Catherine O’Neill, who represents the mixed-use project’s development team, said the Glover’s Corner site has passed its environmental checks and determined any needed mitigation before demolition begins. It will be fenced off later this month with demolition expected to start in December and continue through February. The team is “still trying very hard” to acquire three corner properties near the Dorchester Avenue and Hancock Street, O’Neill said, and architects are now reviewing tweaks to the overall project design.

Morrissey Boulevard: The state Department of Conservation and Recreation is in the process of reviewing the 25 percent design for an expansive redesign of the artery from Kosciuszko Circle to Neponset Circle. Mayor Martin Walsh expressed concern about a proposed lane drop along the oft-jammed roadway, so the state is bringing the proposal back before Dorchester civic groups to solicit more feedback. Planners estimate that the review process will delay the project by about another year, though existing allocated funds can still be used for short-term fixes like improving traffic and crossing signal timing.

Glover’s Corner: The city planning study for a stretch around the Dorchester Avenue spine between Savin Hill and Fields Corner had a public meeting on land uses on Oct. 25. A meeting to discuss transit is scheduled for Nov. 29.

Marijuana Dispensary: Natural Selections is proposing a medical marijuana dispensary for a stand-alone building on Clapp Street. The John W. McCormack Civic Association expects to vote on the project at its Nov. 21 meeting.

Mary Ellen McCormack: The Boston Housing Authority’s 79-year-old Mary Ellen McCormack complex in South Boston is slated to be converted to a modern, mixed-income, mixed-used community in a $1.6 billion renovation. WinnCompanies will develop and manage the 27-acre site, anticipating about 3,000 housing units, one-third of each designated to very low income, middle-income, and market rate. Gilbert Winn told attendees that this is the first leg of an expansive community process on the project.

Long-term planning: The civic group is forming a new committee “to address our desires for potential development sites,” member Don Walsh said in an email. This long-term planning committee would “help inform developers as to what uses would receive community support” for projects like the Glover’s Corner study, the Boston Globe site, and the Bayside area.

The first meeting for the new committee will be Wed., Nov. 15, at 7 p.m. at the basement of Savin Bar and Kitchen.