UPDATE 1-Australia's UGL gets one bid in planned $1.1 bln property arm sale -source

SYDNEY, May 19 (Reuters) - TPG Capital Management LP was the sole bidder for the real estate arm of Australian engineering and property management firm UGL Ltd, raising questions over UGL's long-standing plan to sell the unit for about A$1.2 billion ($1.12 billion), a source told Reuters on Monday.