"The release of this land is part of the city's commitment to creating opportunities that allow the economy to grow and jobs to be created, particularly in areas that were previously deprived of development," he said in a statement.
Six vacant plots with industrial zoning were released in Atlantis after parties looking to establish or expand their businesses expressed interest in buying them.
Three vacant plots with business development zoning were released in Strandfontein, Mitchells Plain, and Macassar.
Neilson said eight vacant plots for single residential purposes were released in Constantia, Kensington, Lansdowne, Mitchells Plain, Surrey Estate, and Heathfield.
"These areas form part of the City's integrated development plan that sets out to use, where available, undeveloped municipal properties to increase growth and sustainable development in poorer communities," Neilson said.
The official tender documents for the land can be obtained from the civic centre.