Countryside has announced this week that it has been chosen to partner Bracknell Forest Council in the next stage of the regeneration of Bracknell town centre.
According to a statement from the firm, the partnership will initially focus on the redevelopment of three council-owned sites at Market Street, Jubilee Gardens and Coopers Hill.
Countryside said it will also "support the council team in masterplanning and delivering other town centre development, including residential, community, employment, leisure and public open space".
According to the statement, the first three sites have the potential to deliver approximately 400 homes, of which up to 35 per cent would be affordable, alongside a new health centre, restaurant, gym, office space, community space and public art.
In its search for a joint venture partner for the scheme, the council had suggested that the sites could deliver "more than 700 residential units".
But a spokesman for the firm told Planning: "Throughout the dialogue process, Countryside identified that low density family housing was more appropriate for the Coopers Hill site rather than flats.
"This brought the overall quantum of housing down but met a number of the council's other strategic objectives.
"The joint venture has the opportunity going forward to bring the quantum of units up by identifying and bringing other council owned sites into its control."
Countryside said that the first planning applications will be submitted in early 2021 with construction aimed to start later that year.
According to the council, phase one of the town centre redevelopment completed in 2011 with the opening of a new Waitrose store, and phase two completed in 2017 when the Lexicon shopping centre opened.