"What people do on their own property is their business but when it starts affecting our property then I'm not going to stand for it," she said.
Councillor Ray Stevens, chairman of the WDC infrastructure and property committee, confirmed officers had looked at the site.
"What the owner is doing there is permitted under our district plan but to make doubly sure we commissioned a geo-technical report from Opus which has now be completed," Mr Stevens said,.
"That report assures us that the work going on there is not a risk to life or limb."
He said there were some minor issues with the hillside development that needed to be addressed when the consent process, currently under way, is finalised.
"That will include the matter of shifting the clay that has been backed up against Mrs Eades' fence line. The point is we've been assured there is no risk to Mrs Eades and we will be taking that message to her," Mr Stevens said.
Blair Watson, who owns the land above Mrs Eades, said he plans to subdivide the land, building on one site and selling the other.
"We've followed the right procedure and had engineering assessments done too but until I get the consents signed off by council I can't do any more on the property at this stage," Mr Watson said.
But he said once work could resume the soil up against the Eades' fence would be removed.