"Rising interest rates and the forthcoming election are probably also influencing buyer behaviour," O'Sullivan said.
The number of sales below $400,000 fell by 22 percent in July, from a year earlier, following a 17 percent drop recorded in June. Sales between $400,000 and $599,999 fell 8.6 percent from a year earlier, while sales between $600,000 and $999,999 edged up 0.2 percent and $1 million-plus sales rose 9.4 percent.
The number of days to sell rose by two to 37 in July, compared to a year earlier, and was two days shorter than in June.
"Sales volumes picked up a little in July compared to last month but this about in line with the normal seasonal pattern," O'Sullivan said.
The stratified median housing price index fell 0.7 percent from June.
In Auckland, prices rose 0.7 percent on that measure, the Christchurch index increased 3.5 percent and the Wellington index advanced 2.1 percent. Over the year the national index increased 5.9 percent, compared to July last year, with the Auckland index up 12.2 percent, the Christchurch index rising 13.9 percent and the Wellington index declining 2.3 percent.
The total value of residential sales, including sections, was $3.06 billion in July, compared to $3.31 billion a year earlier and $3.08 billion in June. For the 12 months ended June 30 the total value of residential sales was $39.34 billion.
See a regional breakdown of the REINZ stats here: