The Hawksley family has owned the coastal property since the 1930s and built 'October Cottage' when a previous holiday home on the same property sat too close to the cliff edge.
Ms Hawksley said her 90-year-old mother, who owns the property, could soon face a council tax bill of around £280 a month.
She said: “We are really in a Catch-22 position. We can’t sell or rent the place, but they (East Riding Council) also insist we pay double council tax from April next year. “There is,” he said. And that seems incredibly unfair. ”
The family signed a deal with ERYC in 2021 to demolish the cottages at no cost to the owners once they are less than 9.3 meters (30 feet) from the edge of the eroded cliff.
“I don't want to measure it too often because it's so devastating, but I think it's less than 10 meters from the edge right now,” Hawksley said.