Residents’ reactions to a newly proposed zoning plan for the Downtown have been overwhelmingly negative, according to city and state officials.

The latest draft of the zoning plan, called PLAN: Downtown, allows for buildings of up to 500 feet in height along a central corridor of the neighborhood, provided that at least 60 percent of the building is used for affordable housing. If not, the height limit is only 155 feet.

“I have heard a lot of feedback from residents on this,” said City Councilor Ed Flynn, who represents the Downtown and parts of Beacon Hill. “I would say 90 percent of it was negative. A lot of residents in the Downtown neighborhood have expressed disappointment in the city of Boston for this zoning proposal.”

The current PLAN: Downtown draft is the latest installment in a six-year process to rezone the neighborhood with the help of a community advisory group, to revitalize business and simplify the area for developers while protecting historic buildings and parks. The draft was announced on January 8, and a public meeting was held about it the following week.

Over 230 people attended the meeting to express their frustration with the Planning Department, for a proposal they said was instead designed to build a canyon of high-rise luxury buildings. Advisory group members said it looked nothing like their recommendation.

“[The draft] received overwhelmingly opposition from residents,” Flynn said. “Members of the PLAN: Downtown advisory group expressed frustration that the [height] expansion is a large departure from the previous plan. It felt like residents’ voices weren’t respected and heard.”

Many people were also angry with the short period allowed for public comment, which was set to expire on February 5. On Monday, Flynn wrote a letter to Chief of Planning Kairos Shen, requesting that the deadline be extended until at least early March.

“Neighbors who worked in partnership with the Planning Department felt disappointed and a lack of respect and regard for their efforts,” the letter reads in part. “It is unacceptable that Downtown residents are only given three weeks to provide public comments. There needs to be more dialogue with our community.”

“Certainly, the residents’ feedback was important, but I also felt it was important to respect the community process that has been ongoing for six plus years,” Flynn said. “I just felt that the zoning text amendment did not respect good faith communication with residents. It was surprising and disappointing that the city of Boston recommended that without any input from them.”

Shen, who was hired in September, said in the meeting that he believed the new proposal effectively balanced the needs of residents and developers. When asked on Tuesday, the Planning Department said it had not yet received Flynn’s letter.

Residents have also reached out to other officials. The Boston Preservation Alliance, for example, has drafted a letter for residents to automatically send to Planning Department officials demanding an extension of the public comment period.

State Representative Jay Livingstone, who represents Beacon Hill and the Back Bay but not the Downtown, said multiple people outside of his district had called him with concerns about the zoning plan’s impact on parks and historic buildings.

State Representative Aaron Michlewitz, who does represent the Downtown, did not respond to a request for comment.