Prices of new homes in 288 cities rose 0.37% in December from November, when they had risen 0.77%, a poll by realty services firm E-House China showed on Wednesday.
House prices climbed 10.04% from a year earlier, little changed from Novembers annual rise of 10.11% and a seventh consecutive month of double-digit annual gains.
A separate survey by China Real Estate Index System (CREIS) on Tuesday showed average prices in the 100 biggest cities rose 0.7% in December from November, when they had risen 0.68%, to post a 19th straight monthly gain.
On average, prices rose 11.5% in December from a year earlier, CREIS said in a statement, with prices in seven cities including Beijing and Xiamen increasing by 20-30%.
With the housing supply increasing in 2014, shortages are likely to be eased and developers will become more rational, said CREIS, a consultancy linked to Chinas largest online property information firm, Soufun Holdings.
But there might be increasing divergence between big and small cities, it added.
House prices have surged in the past year, in part due to a view that property remains one of the best investments. That has prompted the government to try to head off bubbles in the market without damaging one of the pillars of growth in a slowing economy.
Despite the steps, which include clampdowns on mortgage lending, increased construction of affordable homes and promises of more land for building, many Chinese find home ownership well beyond their reach.
Analysts say Beijing wont want to see a sudden and sharp downturn in the property market as the leadership tries to steer the worlds second-largest economy towards more sustainable growth after three decades of breakneck expansion.
A Reuters poll in November had predicted a slowdown in house price growth, with analysts forecasting a 5.0% rise in house prices in 2014 after a 10% gain last year.