The 7 must-know numbers of the week

The approximate price celebrity interior designer Tina Chalabian from Channel Ten show The Renovators secured for her Willougby home pre-auction. It was a suburb record.

ANZ's new interest rate for its three-year fixed-rate mortgages. ANZ put up its fixed rates but not its variable rates after the RBA left the official cash rate on hold at 4.25% last week.

The expected total returns per year for the serviced apartment market in the next three years, according to Atchison Consultants. The total returns for hotels are expected to range between 10% to 11% per annum.

The median asking rent for units in Sydney in January 2012, according to Residex. This is up 6.7% on the same time last year.

Perth's ranking on Knight Frank's list of the most expensive CBD office markets in the world. Sydney fell from eigth spot last year to 10th this year. 

The number of dwelling commencements in December, according to the ABS. This is the lowest level since before the GFC.

The number of days a Brisbane estate agent waited after a man had died before taking photographs of his house, presumably to try to secure a listing. The widow, who is not selling the house, approached the agent, who jumped in her car and drove off.