Property report

438 Diamond St

Vacant lot · Philadelphia Housing Auth · tax-exempt. On the 400 block of Diamond St.

From above — imagery © Esri, Maxar

Property summary

Assessment$44KCity assessed value Last sale—No sale value available Est. taxes$0/yearTax-exempt record Permits—Record unavailable ViolationsNone openNo open L&I cases

Not a houseProperty report

This is a vacant lot, not a home, and it pays no property tax. BlockReport's value, tax and investment tools are for residential parcels, so they're hidden here. The full public record is still below, and the analyst can answer anything about it.

What it is

Vacant lot

Vacant Land Reside < Acre

Owner

Philadelphia Housing Auth

Public / institutional

Tax standing

Tax-exempt

Pays no property tax

Assessed value

$44K

City market value

Lot size

741 sqft

Zoning

CMX2

Block context

438 Diamond St sits on the 400 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.

See the whole block →

Next door: 436 Diamond St · 440-42 Diamond St

Where this comes from

Assessment, spec sheet & owner — OPA Property Assessments, Office of Property Assessment
Sales & deed history — Realty Transfer Tax records, Recorder of Deeds
Permits, violations & inspections — L&I Property History · Atlas
Back taxes & liens — Real Estate Tax Balances, Dept. of Revenue
Zoning appeals — L&I & Zoning Board appeals
Neighborhood income & rents — US Census ACS 5-year estimates
Historical mortgage rates — Freddie Mac Primary Mortgage Market Survey, annual averages

Methodology & freshness

City datasets are fetched live from OpenDataPhilly (phl.carto.com) and cached briefly. Dossiers re-pull automatically — on view once they're a few weeks old, plus a nightly rolling sweep — and citywide benchmarks recompute weekly. AI-written passages are generated from these records only and rejected if they state a number the record doesn't hold.

BlockReport AICited city records

Ask a cited due-diligence question about this property. BlockReport connects the public record - deeds, permits, violations, taxes, ownership, and comparable context - then explains what matters. Try 3 deep research questions with no card or account required.

About this data & fine print

Answers are generated by an AI agent querying City of Philadelphia open data at the moment you ask: OPA property assessments, Recorder of Deeds transfer records, L&I permits, violations & licenses, Dept. of Revenue tax balances, Zoning Board appeals, Police incident reports, Philly311 requests, and School District of Philadelphia catchment and school data.

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.

Informational only. Not legal, financial, or investment advice. Not a consumer report under the FCRA — it may not be used to decide anyone's eligibility for housing, tenancy, employment, credit, or insurance.

Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)

438 Diamond St

Property summary

Block context

Where this comes from

This is 438 Diamond St,
on paper.

The whole record is free.

What to catch on the way down.