Some Hall County property owners are shocked by big increases to their tax assessments as the area continues its post-recession resurgence. Assessments are going up this year for just fewer than 28,000 of the county’s approximately 75,000 parcels, according to Steve Watson, the chief appraiser for Hall County government. While the dollar value connected to the market boost won’t be made public until May, Watson said it’s a “positive” sign that the area is shaking off its recession-era stagnation.