* Bid announced after market, Investa shares not traded
(Adds Blackstone response, analyst quote and background on
Australia's property market):
SYDNEY (Reuters) - Canadian landlord Oxford Properties Group lobbed a last-minute A$3.3 billion ($2.4 billion) bid for Australian office owner Investa Office Fund (IOF.AX) on Tuesday, edging out an earlier offer from U.S. private equity firm Blackstone Group (BX.N). The bid lands two days before a scheduled shareholder meeting to approve Blackstone’s takeover that has Investa’s blessings. It caps years of suitors circling Investa as tight supply and strong growth lift rents in Australia, especially in Sydney where Investa’s towers are concentrated.