HONG KONG, Feb. 5 -- Prices of small and medium sized flats in China's Hong Kong saw bigger increase in recent months, latest official data showed.

The latest data from Hong Kong's Rating and Valuation Department showed that local home prices have risen for a ninth consecutive month, with private home prices rallying 13 percent in December from a year ago.

Meanwhile, prices of small and medium sized flats saw bigger increase when compared to those of luxury units. At the same time rent rose 6 percent year-on-year, extending a rising trend since March.