Quality of Assessments in Smaller Townships

In calculating the median average assessment and margins of error, the rules say one must have at least 25 “arms length” sales. There are six townships not meeting that level of real estate sales activity. When combined, the smaller townships’ … Continue reading

Al Zielinski Staying as Grafton Township Assessor

This is a press release from Grafton Township Assessor Al Zieliniski: Four more years of accurate and fair assessments for Grafton Township HUNTLEY, IL – Grafton Township property owners can look forward to four more years of accurate and fair … Continue reading

Looking at Assessments in McHenry County

The Chicago Tribune article on assessments has a comment on what constitute acceptable real estate assessment quality. It states that a 15% margin of error is “the highest acceptable coefficient of dispersion (margin of error).” Accuracy in your township Experts … Continue reading

Assessment Quality in McHenry County After the Last Township Election

Every so often, it seems useful to share measurements of assessment quality among McHenry County Townships. These are basically measures of the work of township assessors, although the quality of their work can be increased or decreased by changes made … Continue reading

County Releases Assessment Quality Statistics

Assessors use something called a “Coefficient of Dispersion” to measure the quality of assessments. It’s something like the margin of error used in political polls. The McHenry County Supervisor of Assessments has provided the following data from 2015.  This is … Continue reading

A Benefit of Consolidating Township Governments

Back in the 1970’s, Algonquin Township Assessor Forrest Hare computerized his office, probably the first to do so in the State of Illinois. He also took an interest in how assessment could be made more accurate. Hare looked at measures … Continue reading