The Homes & Communities Agency said over 400 residents contributed ideas at a series of consultation events about the residential site in Preston, Lancashire.
The HCA held the events to get direct input from local people into a review of a masterplan for the area and how it might evolve.
Over 1,000 homes have been built on the 313-acre site since 1990 and new proposals for the site include providing a further 1,300 homes and new community facilities on the remaining 90 acres.
Working with Preston City Council and Lancashire County Council, the HCA held three consultation events using Cottam Primary School and Cottam Community Centre earlier this month.
Deborah McLaughlin, North West director of the HCA, said: "I would like to thank everyone who came to the consultation events – it was great that so many people came along and play such a positive, active role in the process. The suggestions and feedback residents have given to the project team will play a big part in future of Cottam Hall, directly helping to shape the next phases of development."
The HCA said detailed feedback on the community events will be published before Christmas. Further community events will be held next year, providing another opportunity for residents to give input into the project. The masterplan will then be submitted to the council for approval in 2011.
The residential site is situated across the road from the derelict brickworks site, which is another area being proposed for redevelopment involving Tesco.