2026 taxable assessment $251,800 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $254,400; it is not the 2026 billed-year value.
House report
3 bd · 1 ba · 2 stories · 1,372 sqft · RSA5 · built 1920
Owner-occupancy signal · assessed $252K (2026) · 2027 OPA assessment $254K · sold 5×. On the 5100 block of Keyser St.

Open the research chat with this property already in context. Curated questions are free.
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
Property tax
BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.
2026 taxable assessment $251,800 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $254,400; it is not the 2026 billed-year value.
A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit—or an amount due—is not automatically “back taxes.”
OPA 1232031002026 taxable assessment equals the full assessed value.
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
4 non-nominal transfers recorded: $85K in 2002 → $240K in 2023 (+700% between recorded amounts).
View supporting records →The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.
Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.
The latest deed records $100 or less and shared-name parties. That is not a usable market-sale price and can reflect a family, estate, gift, correction, or entity transfer. Inspect the deed and order a title search rather than inferring the relationship or chain.
This home reads owner-occupied but shows no Homestead Exemption, which removes $100,000 from the taxable assessment (worth up to $1,399/yr). Applying through the City is free and takes minutes.
Derived from the fetched property records and linked City guidance as of 2026. Assessment treatment is not a substitute for an exemption approval, live balance, title report, license, occupancy certificate, or inspection. Informational only — not legal, tax, or investment advice.
Every fetched annual City assessment for this house, compared with its block and ZIP. The figures show assessment change, the billed-year tax estimate, dated tax records, and recorded transfers. They do not estimate market appreciation or investment return.
Assessment vs. the block and ZIP · every dated City record marked on the line
Scroll horizontally to move through the years. Each icon sits on its recorded date; records without a day are labeled and centered within their year. Select one to explain the filing.
4 non-nominal transfers recorded: $85K in 2002 → $240K in 2023 (+700% between recorded amounts).
Records behind the chart
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
2023
Case CF-2021-068617 · PASSED
The cited inspection visit was marked passed.
Case CF-2021-068617 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2021-068617 · Violation VI-2021-049578 · Code PM15-304.13 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
2019
Case 575399 · PASSED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.
Case 575399 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case 575399 · Violation 4293589 · Code PM15-302.1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 529730 · PASSED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.
Case 529730 · Violation 3911981 · Code PM15-504.1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 529730 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case 335703 · CLOSED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.
Case 335703 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case 335703 · Violation 2539672 · Code PM-306.0/1 · COMPLIED
A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now. City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 335703 · Violation 2539671 · Code PM-302.3/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 335703 · Violation 2539673 · Code PM-306.2/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
License 369775 · Inactive
ALEX BABAYEV (GEORGE BABAYEV) · Expires 2015-02-28 · Inactive 2015-04-29
2006
License 244677 · Inactive
INNA POTETNYA · Expires 2007-02-28 · Inactive 2012-12-22
2002
What this record suggests
The dated deed and City-record sequence is assembled below. Read timing as a research lead, not proof of renovation, condition, or motive.
Flags: latest deed has shared-name parties — relationship unverified. Informational only — not investment advice or a consumer report (FCRA).
The city assessor's field record — the physical spec sheet behind the assessed number.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
What owning 5138 Keyser St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.
Scenario for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance, and buyer cash equal to the down payment plus 4%. Taxes use this parcel's taxable assessment, not a live Tax Center balance. Cash flow and returns exclude vacancy, management, utilities, HOA or condo fees, leasing costs, income tax, and unplanned capital work.
5138 Keyser St sits on the 5100 block of Keyser St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 5136 Keyser St · 5140 Keyser St
This report was assembled Jul 11, 2026, 1:59 AM ET. Available City datasets are queried from OpenDataPhilly (phl.carto.com) and the cited City ArcGIS feeds; record queries paginate rather than silently taking a first page. For this property: Permits: queried · Violations: queried · Investigations: queried · Appeals: queried · Licenses: queried · Building certifications: queried. “Unavailable” means the source query failed or was not supplied, not “no record.” Reports re-pull on view after seven days and on an overnight rolling schedule; citywide benchmarks recompute weekly. Source dates still govern: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. The live balance and date-effective payoff must be verified in Tax Center. AI-written passages are grounded in the assembled record and rejected if they state a number the record does not hold.
Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)