Please be advised that Tyler Technologies has been contracted by Delaware county to provide valuation services for the 2021 countywide reassessment project. During this phase of the project, our staff will be working within your municipality to collect current property data and confirm or verify existing county assessment property records. This occurs by visiting properties, measuring improvements, observing and noting all exterior building characteristics.   

These efforts will be conducted by Tyler employees, called Data Collectors, who can be identified by their day-glo work vests which bear the “TYLER” name on the back and by their Delaware county issued photo ID badge. At each property, data collectors will knock on the door before proceeding with data collection. If an adult is home, data collectors will ask a series of questions relevant to the property characteristics – such as room count, basement area, type of heating/cooling, date of last remodel, etc. They will never ask to be invited into the home.  

Effective February 1, 2019 Data Collectors will begin working in your municipality.

Should you or the residents within your area have any questions, please call our informational hotline, telephone # (610) 891-5695. Tyler staff will be happy to assist. 

Additional information can also be found by visiting the reassessment project website:

http://delcorealestate.co.delaware.pa.us/delcoreassessment/