The plan, which calls for 80,000 new apartments, mostly for households with annual income of less than $69,000, requires an extraordinary amount of diplomacy, even with the mayor’s allies. Neighborhood groups and their City Council representatives, who must sign off on any rezoning, are anxious about taller buildings, more people and gentrification. Labor unions want assurances that they will have a bigger role in construction, even though it drives up costs.
Perhaps the most vocal complaints are coming from affordable-housing groups that want the new homes that are designated as affordable to go to the poorest residents, as opposed to a mix of income levels, and that want to ensure that current residents will not be displaced as people with higher incomes move into the neighborhood and make it more upscale.
While the activists acknowledge that they have enjoyed more access to a post-Bloomberg City Hall, they have also been conducting frequent protests there. At a demonstration in March, protesters yelled “Slow it down!” as Mr. de Blasio passed by them.
“It hasn’t been easy for either side,” said Maritza Silva-Farrell, a spokeswoman for Real Affordability for All, a coalition of more than 50 housing and tenant groups. “It’s hard when you hear that a community is going to be rezoned and you don’t know what that means.”
Administration officials have played down the anxiety, but there is obvious concern, and there are signs that the resistance is wearing on them. In an interview, Mr. de Blasio said he planned to go out into communities to “talk about the plan directly to the people.”
“We have to show people in neighborhoods all over the city that this is a very different approach to development and one that protects their interests,” the mayor said.