Greenwich housing prices and number of sales moved higher. Accounting for 20.1% of all sales, the condo market saw the most price gains as it shifted toward larger, higher end product. Condo median sales price jumped 41.4% to $947,500, while the average condo size jumped 36.9% to 2,311 square feet respectively from the prior year quarter. Single family median sales price increased 11.8% to $1,900,000 over the same period. Luxury median sales price, defined as the top 10% of all sales, was $5,325,000 and unchanged from the prior year quarter. The average size of a luxury sale was 7,563 square feet, down 17.7% over the same period, skewing average sales price much lower…