Property assessments went up by an average of 17% this year as the borough works to implement a new mass appraisal system—borough manager Annette Kreitzer said staff are working on a budget proposal to lower the mill rate in an effort to partially offset a tax hike.

The new assessments are closer to market value, according to assessor Michael Dahle. Dahle was contracted by the borough in November in an effort to make assessments more…