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Assessments

How OPA Assesses Property

How does the Office of Property Assessment (OPA) evaluate your property? Learn what methods the OPA uses to establish an accurate property assessment.

Property Assessment Data

The Office of Property Assessment has conducted a full reassessment of all real property in Philadelphia as part of its work to maintain accurate, fair, and understandable property assessments.

First Level Review & Appeals

In the event that you disagree with the assessed value of your property, learn what steps you need to take to start the appeal process.

What's New

Attn: ALL Philadelphia Homeowners! Don't Leave Savings on the Table--Apply for the Homestead Exemption
Have you Applied for the Homestead Exemption? Deadline is Saturday, Sept. 13th
September 13, 2014 Homestead Deadline is One Week Away; Homestead Hotline Operating on Extended Hours
Translated Homestead Affidavit Now Available
TY15 Homestead Exemption Deadline is Less Than One Month Away

Glossary

A selection of terms relating to Assessments.

  • Assessment Date
  • Assessment Equity
  • Assessment Progressivity (Regressivity)
  • Assessment Ratio
  • Assessment Ratio Study
  • Geographical Market Area (GMA)
  • Level of Assessment; Assessment Ratio
  • Reappraisal
  • Reappraisal Cycle
  • Reassessment
  • Reevaluation
Full Glossary