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Gage County assessor details appraisal 'recalibration' using MIPS, pictometry and field iPads
Summary
County staff told the Board of Equalization that a vendor will use MIPS and pictometry to build mass-appraisal models, deploy iPads for field reviews and run change-finder tools as part of a countywide recalibration of property appraisals.
County staff described plans for a countywide appraisal recalibration at the Sept. 4 Gage County Board of Equalization meeting, outlining the technical systems and workflow they expect to use.
A staff member identified in the transcript as Patty explained the county is working with a vendor and will use the MIPS computer system to create mass-appraisal models from recent sales data. Patty said the county will rely on pictometry aerial imagery and a "change-finder" function to compare current conditions with prior flights. She also described use of field iPads so appraisers can pull up parcels in the field and update parcel information without relying solely on paper property record cards.
Patty said earlier flights and GIS work (G Works) were matched to pictometry data in previous cycles; the county expects the new approach to improve measurement tools and reduce dependence on paper record cards. She noted that lower-altitude flights yield better imagery but are more expensive and that some counties fly annually while others fly every two years.
Why it matters: the recalibration could change parcel valuations countywide because models will be trained on recent sales and imagery; the county will notify affected owners and hold a joint public hearing Sept. 19 for parcels with increases above 2 percent. The board did not take a formal vote on technical procurement or flight frequency at this meeting.
Provenance: primary discussion and technical details appear in transcript segments describing MIPS, vendor models, pictometry and field workflows (SEG 040–SEG 077; SEG 078–SEG 086; SEG 107–SEG 136).
