Plans to build 47 extra-care flats for the elderly in Heanor are among ten projects that will no longer go ahead after an £83 million contract collapsed.
Not-for-profit care provider Housing 21 said it could not deliver the contract to build 685 flats across Derbyshire due to a lack of funds.
As a result, 17 care homes earmarked for closure will be kept open, including Rawthorne in Swanwick, The Glebe in Alfreton and The Willows in Ripley for now.
The flats were earmarked for land next to the former Florence Shipley care home where a new specialist care centre is now under construction. The rest of the 685 flats would have been built at seven undecided sites in other parts of the county, including Amber Valley.
Councillor Clare Neill, cabinet member for adult care, said Derbyshire County Council will consult with residents and relatives on a district-by-district basis.