Who owns your block

500 block of W Loudon St

A mostly owner-occupied block: 86% of homes are lived in by their owners, with 1 home behind $3,796 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

$139K

$136K–$492K

Median built

1935

year built

city 1925

Owner-occupied

86%

24 of 28

Open violations

none on record

▼ block 0% · city 5%

Back taxes

$4K

1 of 28 behind

▼ block 4% · city 9%

Schools

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

Elementary & Middle · K-5

Thurgood Marshall

4500 Griscom St · 243 students

High · 9-12

Olney High School

100 W Duncannon Ave · 1036 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 28 parcels

Owner-occupied 24
Investor / LLC 1
Absentee individual 3

Value distribution today

$136K$152K+

Owner	On block	Owns citywide	Portfolio value	Source
99 Names Llc	1	1	$152K	phila.gov ↗

House by house

All 28 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
521-23 W LOUDON ST	Owner-occupied	$492K	—	—
525 W LOUDON ST	Owner-occupied	$139K	—	1935
527 W LOUDON ST	Owner-occupied	$139K	—	1935
529 W LOUDON ST	Owner-occupied	$139K	—	1935
531 W LOUDON ST	Owner-occupied	$151K	—	1935
533 W LOUDON ST	Owner-occupied	$141K	—	1935
535 W LOUDON ST	Owner-occupied	$139K	—	1935
537 W LOUDON ST	Owner-occupied	$139K	—	1935
539 W LOUDON ST	Owner-occupied	$139K	—	1935
540 W LOUDON ST	Owner-occupied	$143K	—	1935
541 W LOUDON ST	Owner-occupied	$187K	—	1935
542 W LOUDON ST	Absentee individual	$136K	—	1935
543 W LOUDON ST	Owner-occupied	$139K	—	1935
544 W LOUDON ST	Owner-occupied	$138K	—	1935
545 W LOUDON ST	Owner-occupied	$139K	—	1935
546 W LOUDON ST	Owner-occupied	$144K	—	1935
547 W LOUDON ST	Owner-occupied	$139K	—	1935
548 W LOUDON ST	Absentee individual	$144K	—	1935
549 W LOUDON ST	Owner-occupied	$139K	—	1935
550 W LOUDON ST	Owner-occupied	$144K	—	1935
551 W LOUDON ST	Owner-occupied	$139K	—	1935
552 W LOUDON ST	Owner-occupied	$144K	—	1935
553 W LOUDON ST	Owner-occupied	$139K	—	1935
554 W LOUDON ST	Owner-occupied	$144K	—	1935
555 W LOUDON ST	Owner-occupied	$139K	—	1935
556 W LOUDON ST	Owner-occupied	$144K	—	1935
557 W LOUDON ST	Absentee individual	$144K	—	1935
558 W LOUDON ST	Investor / LLC	$152K	—	1935

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 2026-07-08 from public City of Philadelphia records · Download this block's data (CSV)