Barrister and former Liberal politician Maurice Neil QC and his lawyer wife Natasha Goulden have listed their Spanish mission-style Double Bay residence, the Taj.
The heritage listed property, built in 1934 by poulterer Albert Glazebrook, has $7 million plus hopes.
It last traded in 2003 for $4 million from the art dealer Marlene Antico.
Its subsequent renovation won the Woollahra Council Conservation Award in 2006. It comes with rare Max Le Verrier light fittings.
The Blacket Agency's Peter and Jacqueline Blacket have the 16 December auction in conjunction with Goodyer's Pauline Goodyer.
The Wiston Garden house was built on the cul-de-sac in 1934 at a cost of £2,700.
In 2002 it was bought by art dealer Marlene Antico for $2.9 million late last year from corporate adviser Robert Crossman, who put it up for sale with still unimplemented, council-approved Howard Tanner renovation plans.
Crossman had paid $1,705,000 in 1997.
Neil, born in Manchester, England, was elected to the House of Representatives in the December 1975 as the Liberal member for St George, narrowly defeating Labor's Bill Morrison by 56 votes.
In the 1977 federal election he withstood a challenge from the previous member for Grayndler, Tony Whitlam, to retain St George.
Neil was defeated by Morrison in the 1980 election.
Title Tattle gleans there are suggestive signs that Neil has bought in Darling Point where Blacket recently sold the home of the Chancellor of the University of Sydney Belinda Hutchinson AM, and her husband Roger Massy-Greene, chairman of state-owned Network NSW, for more than $7.5 million.