According to the central bank announcement, mortgages on a second home will be treated as a first mortgage if the buyer has no other outstanding mortgages. As a result, people who wish to buy a second home will enjoy the same 30-percent down-payment ratio required of first-time home buyers, instead of the original 60 to 70 percent down-payment ratio.

They will also be allowed interest rates as low as 70 percent of the 6.55-percent benchmark mortgage rate, instead of paying a 10-percent premium on top of the benchmark rate as required previously.

Easing measures will particularly support the robust growth in demand from home buyers who intend to acquire better properties to improve living conditions, because upgraders are able to enjoy benefits of a mortgage as first-time buyers, rating agency Fitch said in a latest industry report.

Zhang Xu, an analyst with Homelink, said the central bank's policy adjustment first and foremost is making a strong impact on people's expectations of the Chinese property market.

Overall expectations are likely to reverse from being pessimistic to being neutral or even positive, and the improving sentiment is possible to help warm up the cool market, Zhang said.

The Chinese property market suffered a notable downturn in 2014. Weak market sentiment and home buyers' confidence, sluggish sales, falling prices, and elevated and rising inventory had all weighed on the industry's outlook and consumers' confidence.

Official data showed out of 70 major Chinese cities, new homes in 68 saw month-on-month price declines in August, compared with 64 in July.

Ding Zuyu, executive president of E-House Holding Ltd. which is a New York-listed real estate services company in China, said the core change brought about by the central bank's policy adjustment is the boost of potential home buyers' confidence.

A serious dry-up in home buyers' confidence, along with oversupply, has contributed to current property downturn in China, Ding said.

In the week-long holiday, the number of transactions brokered by E-House Holding doubled that of the previous week, and was close to that in 2013, he said.

A rising confidence is expected to unleash cumulative demand from potential home buyers in current quarter ending in December, Ding said.

Nanjing, capital of east China's Jiangsu Province which had lifted home purchase restriction on Sept. 21, reported total sales of 2,812 house units in the week-long holiday, a 47-percent increase year-on-year and a record high.

Despite the upbeat sales, the trend of falling house prices won't be reversed in the near future, according to Chen Xiaotian, deputy secretary-general of the China Real Estate Association.

Based on the cycle of the property industry, overall house prices are likely to continue falling for the rest of this year, and prices could go up in the first half of 2015, Chen said.

Yang Hongxu, director of the Comprehensive Research Department at Shanghai Yiju Real Estate Research Institute, agreed.

House prices are still on a downward trend, and there are hefty inventories in many major cities. It will take some time before home buyers' expectations turn to optimistic, he cautioned.

Yang expected house prices in four tier-1 cities and some tier-2 cities to stop falling and rebound before year-end. But there won't be a notable price rebound for a majority of cities nationwide, he said.