However, while publicity in earlier years had "brought people out of the woodwork", there had been "not much" of a response to last month's advertisement. Most of land owing rates was in deceased estates and, despite vigorous searches, no one could be contacted who would take responsibility for the properties.
The most common way for the council to resolve the debt, particularly with rural land, was to get adjoining landowners to take over the properties, Mr McCall said.
It was unclear who owned some "slivers" of land created by road realignments and, in other cases, owners abandoned properties damaged by slips.
"A slip damaged the 1648sq m residential block in Ward Drive at Opua and the owners walked away because it was no longer any good for them," Mr McCall said.
Council sale of abandoned land is authorised by the Local Government (Rating) Act 2002.
Mr McCall said if the council was unable to find buyers or people prepared to take over responsibility for the land, the properties would remain on the council books and continue to accumulate rates until a solution was found.