Price trends and sales moved higher in the final quarter of 2017. Median sales price edged 0.4% higher to $597,500 and average sales price increased 4.3% to $843,919 respectively from the year-ago quarter. Within property types, single-family median sales price declined 4.6% to $596,500 as condo median sales price skewed sharply higher due to a pronounced shift in the mix to $807,500 respectively from the same period last year. Single family sales accounted for 97.9% of all North Fork sales. There were 191 sales of…