Smaller sized single-family sales and higher condo activity were the norm in the final quarter of 2016 Palm Beach housing market. This mix caused havoc among the price trend indicators. To illustrate, we’ve added average square footage to each of the submarket matrix tables presented in this report. The average square footage of a single-family sale dropped 36.3% to 3,329 from the prior year quarter. This result was the smallest single-family square footage average in eleven years…