Year ends with seasonal sales cheer Perth Metropolitan sales for 2013. Source: REIWA Source: Supplied PROPERTY sales in the Perth metropolitan area have been slightly higher this Christmas than last, according to figures from the Real Estate Institute of WA. Home and land sales have also been steadier since November than they were over the same period last year, and have been floating around the 900 mark for the past four weeks. According to REIWA, sales have been trending upward on average each year. The annual average total weekly sales for 2011 was 589 properties. The total increased by 21 per cent to 717 properties in 2012. And the current average total weekly sales for 2013 is 866 - an increase of 21 per cent over 2012. A REIWA spokesman said the institute expected the normal seasonal drop over the holiday period, with the number of sales picking up in mid-January.