The decision to scrap a controversial regeneration project could lead to a shortfall in the provision of new homes, the council has admitted.
The borough's Labour group announced plans to ditch the £2bn Haringey Development Vehicle (HDV) - a controversial partnership with private developer Lendlease - in the run-up to local elections in May.
Councillors are expected to confirm the project will be axed at a cabinet meeting on Tuesday and instead set up a wholly council-owned company to provide housing.
But a council report states that the decision to scrap the HDV could have an impact on the local authority's ability to meet its housing delivery targets.
Under the terms of the mayor's new London Plan, the council will need to guarantee the provision of nearly 2,000 homes per year and demonstrate that it has a five-year housing land supply.
If the council fails to meet its obligations, the government could intervene and take over Haringey's planning powers.
Axing the HDV will come at a financial cost to the council, as it will have to pay more than £500,000 to Lendlease to cover work already undertaken.
The council's report states that scrapping the HDV "will naturally mean that these outcomes will not be achieved in the ways specifically envisaged by the HDV programme as it was proposed".
It could also make it harder for the council to attract investment and support from private-sector and other external partners in the future, the report states.
Critics of the deal with Lendlease claimed it would not provide the affordable homes needed for the council's residents and warned against transferring public assets to a private developer.
The report will be discussed at a cabinet meeting on Tuesday where members are expected to approve its recommendations to withdraw from the HDV.
Councillors are also set to give the nod to proposals to set up a wholly council-owned company to provide social housing.
Residents to begin leaving Broadwater Farm estate block
Residents of a housing block on the Broadwater Farm estate in north London will begin leaving their homes following a cabinet meeting at Haringey Council last night.