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China's shadow-banking problems may have grabbed headlines, but its long-bubbling property sector continues to pose risks to the economy, analysts said. The property market is the
biggest concern about China right now, Adrian Mowat, chief Asian and emerging market equity strategist at JPMorgan, told CNBC. "We do have a habit of talking about irrational exuberance
about three years too early. And people have sort of taken their eye off that particular bubble," he said. (_Read more_: Get ready for more China shadow-banking defaults) Home prices
in many Chinese cities have continued to set records over the past year despite the government's four-year long campaign to cool the market. Some local governments were forced into a
fresh round of curbs in November, with measures including raising minimum down payments for second homes and promising to supply more land for building residential properties. The size of
the rises from a year earlier are certainly large: In December, average new home prices in 70 major cities on the mainland rose 9.9 percent from a year ago, the 12th consecutive annual rise
and the same as the previous month's record gain, according to data from the National Bureau of Statistics. (_Read more_: Who's afraid of China property prices?) Mowat isn't
alone in considering the property sector a key risk. Credit Agricole is concerned that an excessive price correction could threaten the country's growth prospects. "It takes only
3.5 years of average annual disposable income to buy a home in the U.S., compared to as much as 22.5 years of urban disposable income in China," Credit Agricole said in a note.
"This makes inaccessibility of housing a big social issue and threatens a sharp correction, which – given that residential construction accounts for about 10 percent of GDP (gross
domestic product) – poses a large risk to growth," it said. (_Read more_: Rising home prices send China's 'rat race' scurrying underground) The strong rises in property
prices and sales continued in January even as China moved to rein in credit growth, UOB KayHian said in a note last week. It noted that developers spent around 248 billion in January to
replenish their landbanks, up around 37 percent from the monthly average in 2013. Those purchases are spurring concerns both that developers are taking on more debt even as monetary policy
is tightening and that more projects will come up for sale this year, potentially leading to oversupply if the market slows, UOB KayHian said. Wang Zhao | AFP | Getty Images
"Banks' tightened lending policy and various cities' cooling measures have not dampened buyers' sentiment," UOB KayHian said, noting the average selling prices for
homes continued to rise in January, up 0.63 percent from December, according to data from Chinese real-estate internet portal Soufun. "Our concern is that the herd mentality has
prompted buyers to push forward their home purchase, meaning that demand could fall sharply when sentiment turns." To be sure, concern over the property market isn't universal,
with some believing the sector can continue to grow. (_Read more_: No US-style subprime crisis for China: Former CIC Chair) "China property is still a fast-growth sector," Deutsche
Bank said in a note last week. "We see the current high sales volume as sustainable in the long term, with little risk of a substantial price bubble," it said. "The
policy/reform focus of the new leadership is highly supportive of structural long-term end-user demand in the China property market." The bank estimates the urbanization focus could
spur demand for 10 million residential units a year through 2030. _—By CNBC.Com's Leslie Shaffer; Follow her on Twitter_ @LeslieShaffer1