The main residence, a 910 square metre Tudor style residence, includes seven bedrooms, a billiards room and a glass atrium roof sitting room.
In 2005, Mr Cameron paid the Fosters Group a whopping $8.175 million for Sefton, which had a reserve of $4.625 million. Sefton has also been owned by entrepreneur John Elliott.
Keatings Real Estate Woodend’s John Keating – who is championing a more transparent and ethical way in which price guides are presented in advertising – says Sefton has a reserve price of $12 million.
If it doesn’t sell beforehand, Sefton will be auctioned at noon on Thursday July 29.