In December, though, the real estate market dipped in Alberta. Total dollar volume was down 15.6 per cent compared with December 2006 to $1.1 billion and total sales were off 24.3 per cent to 3,049 units. The average sale price, however, increased by 11.5 per cent to $354,290 while new listings also increased by 16.1 per cent to 4,192 units.