Construction of the facility to be called Hazlehurst is due to begin soon for Halton Housing which will own and run the facility once complete.
The specialist apartments, located east of Village Street, will feature a range of contemporary facilities including a bistro and multi-function room.
Terms have now been agreed and the contracts are set to be signed in the next couple of day.
The Sandymoor scheme forms part of the wider regeneration plans for the site, with Vistry Partnerships scheduled to build 235 houses with Together Housing.
Under this deal, the two partners will deliver a range of homes, split between two, three, and four-bed properties which will be available for open market sale through Vistry Partnership’s housebuilding arm, Linden Homes.
The flagship project was first brought to fruition in April 2019, when Homes England selected Vistry Partnerships as its preferred delivery partner for the Sandymoor scheme, as well as three other key sites across the UK.
Following this, Vistry Partnerships, alongside Halton Housing and Together Housing, acquired the site in June 2020.
The development of the Sandymoor site is due for completion in 2024.