The 7 must-know numbers of the week, starting with price hopes for piece of Brighton estate Kinane

The price hopes for an 825-square-metre parcel of land that businessman Russell Small has shaved off of his record-seeking Brighton mansion Kinane to sell separately. The Kinane estate will lose its outdoor pool and half its tennis court. The entire estate had $20 million hopes on its August listing.

The sale price of Kalua, the Joye family’s plantation-style Palm Beach trophy home, which sold to retired Sydney car dealer Laurie Sutton. Sutton and his wife will be the 1920s beach bungalow’s third owner. It was last sold by the Hordern retailing family to the more entrepreneurial Joye family, the current vendors, for $330,000 in 1978.

The deficit of dwellings in Australia, according to a 2009 National Housing Supply Council report. Academic Philip Soos from Deakin University has rubished this figure, saying "the purported shortage of 85,000 dwellings was complete fiction". 

The price per square metre an investor has paid for a 434-square-metre whole office floor in a Fender Katsalidis-designed 14-level office building on La Trobe Street in Melbourne's CBD. 

The sale price for Simone Callahan's four-bedroom Arthurs Seat home with a tennis court and swimming pool, and guest quarters. Shane Warne's ex-wife had first put it on the market in March 2010 with a $2 million price tag. 

The number of storeys in Brookfield Residential's approved Sydney residential tower proposal for its Sydney Water Board site. It will also be the tallest residential tower in the Sydney skyline at 240 metres, beating off Meriton's 230-metre tall World Tower, which dates back to 2004.