Who owns your block

4500 block of Griscom St

A mixed-ownership block: 57% owner-occupied, 14% investor-held, with 2 homes behind $6,229 on taxes.

Owner-occupied
Investor / LLC
Absentee
Vacant
Has violations

Every parcel on the block, colored by who owns it. Tap a parcel for the owner and its city record.

By the Numbers

Median value

$132K

$112K–$184K

Median built

1935

year built

city 1925

Owner-occupied

57%

8 of 14

Open violations

none on record

▼ block 0% · city 5%

Back taxes

$6K

2 of 14 behind

▲ block 14% · city 9%

Schools

The public schools this block is zoned for — its official School District of Philadelphia catchments.

Elementary · K-5

John Marshall

4500 Griscom St · 243 students

Middle · 6-8

Warren G Harding

2000 Wakeling St · 522 students

High · 9-12

Frankford HS

5000 Oxford Ave · 908 students

Catchment assignments from the School District of Philadelphia via City of Philadelphia open data. Confirm with the District before enrollment decisions.

Who owns it

Ownership of 14 parcels

Owner-occupied 8
Investor / LLC 1
Absentee individual 4
Vacant 1

Value distribution today

$112K$147K+

Owner	On block	Owns citywide	Portfolio value	Source
Bonk Group Holding Llc	1	1	$147K	phila.gov ↗
Joseph W Headley Inc	1	1	$184K	phila.gov ↗

House by house

All 14 homes on the block — value and 12-year trajectory, ownership, and the paper trail on the ones that were bought, built, torn down, or flipped. Sorted up the street; each links to its full city record — or download the roster (CSV).

Address	Ownership	Value & trend	Sq ft	Built
4520 GRISCOM ST	Owner-occupied	$144K	—	1935
4521 GRISCOM ST	Owner-occupied	$144K	—	1935
4522 GRISCOM ST	Absentee individual	$142K	—	1935
4523 GRISCOM ST	Absentee individual	$145K	—	1935
4524 GRISCOM ST	Owner-occupied	$133K	—	1935
4525 GRISCOM ST	Absentee individual	$127K	—	1935
4526 GRISCOM ST	Owner-occupied	$130K	—	1935
4527 GRISCOM ST	Owner-occupied	$127K	—	1935
4529 GRISCOM ST	Owner-occupied	$112K	—	1935
4530 GRISCOM ST	Investor / LLC	$147K	—	1935
4531 GRISCOM ST	Owner-occupied	$112K	—	1935
4533 GRISCOM ST	Absentee individual	$130K	—	1935
4535 GRISCOM ST	Owner-occupied	$130K	—	1935
4537-41 GRISCOM ST	Vacant	$184K	—	—

Neighborhood

Neighborhood income and demographics are coming soon.

I research this block across Philadelphia's live records — assessments, deeds, permits, violations, taxes, licenses, zoning appeals, schools, crime, and 311. Tap a question below to try me free; your own questions come with membership (free to start).

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.

Generated 2026-07-07 from public City of Philadelphia records · Download this block's data (CSV)