Plans have been submitted for 127 homes on the site of a former factory.
Bellway Homes has lodged an application for a combination of houses and apartments on the former Betts site, in Ipswich Road, Colchester.
Residents fear the development will impact on traffic congestion and school places in the area.
Outline permission for the site has already been granted.
The application is part of a proposed 197-home development, but the remainder of the site is in neighbouring Tendring District, which requires separate consent.