Ndlovu said the eThekwini municipality had promised that it would build 75 low-cost units in the area but he did not know what had caused the delay.
On Tuesday, the residents cut swathes of grass and demarcated areas under the watch of Durban metro police and later the Public Order Policing unit.
The municipality's spokesman Msawakhe Mayisela confirmed that they were aware of the invasions and were "doing everything in our power to stop them".
He said the land that the residents were invading "cannot be developed for housing purposes as unstable soil makes it unsafe".
"More than 100 houses have been built in Cato Crest, but the influx of people to the area has meant that land is not available for housing development, and the number of families waiting for houses continues to grow."
Mayisela said they were looking at alternative measures to address land invasion.
"We are a caring municipality, but we cannot allow lawlessness to prevail. In as much as we recognise and protect human rights, we also have an obligation to protect community interests."
EThekwini mayor Zandile Gumede has previously urged residents to be patient while the city worked to find suitable land and funding for low-cost housing for them. The municipality was not immediately available for comment on the latest land invasion.