The Take That singer - who lives in a $16 million Beverly Hills mansion with his wife Ayda Field - was spotted visiting the palatial pad in Los Angeles' Holmby Hills neighbourhood on Thursday (22.03.12) after it went on the market on Monday (19.03.12), according to gossip website TMZ.
Michael was renting the seven bedroom, 13 bedroom property - which is worth $23.9 million - when he died from acute Propofol intoxication in June 2009 aged 50 and the property has been on and off the market since his passing.
Robbie is said to be serious about the house as the realtor - Mauricio Umansky, the CEO and co-founder of The Agency in Beverly Hills - has said he will only show the property to serious buyers who have pre-qualified by proving they have the cash to buy the home.
Last December, a number of items from the mansion went on sale including high-priced paintings by Maurice Utrillo and Henri Rosseau, candles and silverware.
A kitchen chalkboard with a handwritten note which reads ''I [heart] Daddy. SMILE, it's for free,'' written in childlike text - which is thought to have been penned by one of Michael's three children, Prince, 15, Paris, 14, and 10-year-old Blanket, was also sold.
Michael's personal physician Dr. Conrad Murray was found guilty of involuntary manslaughter in relation to the King of Pop's death last November.