The Takapuna mansion was built so there were two separate dwellings under the one roof.
A legal case involving one of the country's most expensive mansions is due back in court next week.
A Takapuna beachfront mansion which set a national house sales price record in 2004 is at the heart of litigation between the parties who owned it.
Staff in the High
Court at Auckland said Justice Hugh Williams was dealing with the case in chambers yesterday but that the matter was due to go back to court next Wednesday.
George Willard is taking a civil action against Emma McCollam and others over the sale of the Hawaiian-style property at 10 Gibbons Rd in Takapuna and weather-tightness issues.
Quotable Value lists the property as worth $12.7 million - $9.7 million for the section and $3 million for the house.
Two houses were built within one structure so more than one family could live there. There are substantial timber highlighting features, sandstone flooring and a swimming pool looking out through phoenix palms.
It was owned by Barry and Emma McCollam, who arrived from Northern Ireland in the 1950s and established McCollam Printers.
They put the house up for sale in October 2003. Mr McCollam said at the time that he and his wife spent six months a year in Queensland to indulge their golfing passion and no longer needed such a big house.
Quotable Value lists the owners as Alfred Barry McCollam, David Graham Smith, Jonathan Paul Stuart Hislop, Emma McCollam, David Graham Smith and Jonathan Stuart Hislop.
The site once housed an Anglican girls' boarding school.
