Proposals for the 45-hectare York Central scheme, including 2,500 homes, 87,700 square metres of office space, 12,000 square metres of shops, a 400-bedroom hotel, and an expansion of the city's National Railway Museum, received outline permission in 2019.
However, an even larger proposed scheme, with 1,200 additional homes, is the subject of the Ministry of Housing, Communities and Local Government (MHCLG) funding, according to a Homes England statement.
Landowners Network Rail and housing agency Homes England submitted an application to York City Council in August 2018.
As part of this year's Budget, it was announced that the government would provide "additional housing investments in York Central, Harlow and North Warwickshire totalling £328 million".
Now, it has been confirmed that York Central will receive a £77 million share of this money.
A statement from Homes England said the infrastructure "will unlock brownfield land with significant access problems".
The total development supported by the infrastructure exceeds the 2018 permission, according to Homes England, and includes "up to 3,705 homes" and up to 111,000 square metres of commercial development.
The money would be used for works including a new main road entrance to the development site; a new bridge over the East Coast Main Line; new key cycling and pedestrian routes; improved existing and new drainage systems; and to provide landscaping as part of a proposed new public park.
The statement said a reserved matters planning application for the infrastructure works has been submitted to City of York Council and that the government funding would be subject to planning approval.
"As part of the project partnership, Homes England and Network Rail have supported the development of the site through land acquisition and master planning," it added.
Councillor Keith Aspden, leader of City of York Council, said: “The funding is a vital step to unlocking a £1.16 billion boost to our economy and delivering a new generation of better paid jobs and hundreds of affordable homes, at a time when York needs it most. The scheme will also set new standards for sustainable living and clean growth, utilising brownfield land in the heart of the city."
York Central appeared in Planning's list of the biggest planning consents issued in 2019.