When adjusted for inflation, the average price actually fell by 15.3%, according to house price figures published jointly by the National Bank of Slovakia (NBS) and the National Association of Real Estate Agencies in Slovakia (NARKS). ... saw house prices double between 2005 and 2008, along with Zilina, Banska Bystrica and Kosice. Trnava, traditionally the region with the second highest property prices, experienced the smallest price rises from 2005 to 2008, at 55.25%. ...