With a little more than two years left in Mayor de Blasio’s administration, housing activists, former allies and even those setting their sights on City Hall are railing against his affordable housing agenda.  

City Comptroller Scott Stringer said de Blasio's rezonings have done little to increase affordability. Public advocate Jumaane Williams criticized de Blasio for failing to acknowledge the shortcomings of his own plan.

"The rezonings of the last six years was never about integration and it was never about affordability. It was about selling our land to the highest bidder," Stringer said.

"So far his housing plan and his homelessness plan have failed New York big time and if you're going to talk about what Mayor Bloomberg did, you have to be accountable for what you're doing right now," Williams added.

Housing activists released this report Wednesday. It takes a look at the racial impacts of two major rezonings during the Boomberg era. The data, gathered by "Churches United for Housing" found demographic changes in Greenpoint and Williamsburg dramatically sped up following a 2005 rezoning.

"It is true that the mayor running for president now, Mayor Bloomberg, was horrible on this issue. He lit a fire, but the de Blasio administration has poured gasoline on that fire," Williams said.

According to the report, between 2000 and 2010 the Latino population decreased from 61,262 residents to 47,000. At the same time, the district added approximately 13,000 new residents, the white population was the largest contributor to that growth. Activists say the same trends continue under the current administration and its rezoning proposals, all part of de Blasio's plan to build and preserve 300,000 units of affordable housing.

Now they're calling on the mayor to support legislation that would require the city to conduct a racial impact study before it moves forward with any rezoning.

"When you take the time to look at how these rezonings are impacting communities of color, that will sound an alarm," Stringer said. "The people who have been pushed out of neighborhoods are longtime residents. They built the neighborhoods everyone now wants to live in."

Since taking office, de Blasio has rezoned six of 15 proposed neighborhoods. Some remain unfinished, and critics of the plan, including Councilman Rafael Salamanca, are threatening to derail outstanding rezonings.

"If you cannot get this racial impact done, this rezoning in southern boulevard is dead on arrival," Salamanca said.

A spokesperson for de Blasio said they are reviewing the bill but would not say if the mayor plans to support the proposal. The City Council is expected to hold a hearing early next year.