The month of April was the single, best April in the 15 years we have been keeping these records, even surpassing 2004-05-06. The single area with the biggest increase? Pierce county, with sales up 38 percent over last year. “We are still very clearly in the midst of a seller’s market and unless we see a significant increase in listings, it will remain that way for the foreseeable future,” remarked OB Jacobi, Windermere. Supply is down to 2.4 months, with King county at 1.3.