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Philadelphia · citywide leaderboard

The largest one-roll ZIP assessment changes 2015

Percentage change in median assessed home value between consecutive complete City rolls. Recomputed from the 2015 City assessment roll; movement compares rank with the first complete roll.

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2027 published assessment roll · current Top 5 in 30 secondsTranscript and video details →

Assessment time machine

ZIP assessment year

City assessment roll

How to read this board

One metric, one stated population, one source date.

The large value is the ranking metric. Open a row for its underlying ZIP, block, or property report; use the method below before treating the comparison as a conclusion.

Complete ranking

All 0 ZIP codes, ranked

1-year change in median assessed home value The micro-line shows the board metric across available City rolls.

0 Philadelphia ZIP codes2015 OPA assessment roll

Ranking metric1-year change in median assessed home valueMicro-line = historical board metric

No ranked records are available.

Source: OPA Property Assessments · Office of Property Assessment · City of Philadelphia open data

Exact method and eligibility

Population: qualifying Philadelphia ZIPs using homes with each complete-roll assessment over $10,000. Metric: percentage change in median home assessment between consecutive complete rolls. Current ZIP and use classifications are applied historically.

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BlockReport AICited sources

Ask about any Philadelphia property, block, ZIP, or owner. Every answer cites its sources.

About this data & fine print

Answers are generated by an AI agent querying available City of Philadelphia open data at the moment you ask: OPA property assessments, Recorder of Deeds transfer records, L&I permits, violations & licenses, dated Dept. of Revenue tax records, Zoning Board appeals, Police incident reports, Philly311 requests, and School District of Philadelphia catchment and school data. When you explicitly request a web check, or ask about a current listing or recent news, the agent can also run a cited public-web search; those claims are labeled separately from City records.

For an explicit web search or a current listing/news question, the agent may also search the public web through OpenRouter and must link every web-derived claim. Public listing pages can be stale and are not direct or comprehensive MLS access.

Property-level tax data is historical: the delinquency snapshot is dated June 2022 and the separate detailed ledger ends in 2016. Neither shows what is owed today; verify a current balance with Philadelphia Revenue.

City data is published as-is and can lag, contain errors, or be corrected later; school performance datasets run years behind and are labeled with their school year. AI answers can contain mistakes. Verify anything that matters against the official record (property.phila.gov, atlas.phila.gov) before acting on it.

AI-generated content; informational purposes only. Answers are generated by artificial intelligence, may contain errors or omissions, are not reviewed by a person before delivery, and are not statements of fact about any person or property. Nothing here constitutes legal, tax, accounting, financial, investment, appraisal, or real-estate brokerage advice. This tool is not a consumer report under the Fair Credit Reporting Act, 15 U.S.C. § 1681 et seq., and may not be used to determine any individual's eligibility for credit, insurance, employment, housing or tenancy, or any other FCRA-covered purpose.