Several years ago Dekalb County voters passed a freeze on property value assessments. So since that took effect, my house and land have had the same assessed value each year. Since the crash of 2008, however, property values have gone down, even in my snooty neighborhood and the freeze was only supposed to stop increases in assessments, not decreases. But this has never been reflected in my assessment, which has remained frozen . . . until this year. I got a notice last week that the value of my house and land has dropped 31.6%. The last time the assessment changed was back in 2006. The oldest form I could find was 2001, and the new value is 17.6% lower than that.