Who owns your block

4100 block of Knorr St

A mostly owner-occupied block: 85% of homes are lived in by their owners, with 5 open code violations and 2 homes behind $8,474 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

$194K

$187K–$224K

Recent sale

$173K

4 sold in 2yr

assessed $194K

Median built

1950

year built

city 1925

Owner-occupied

85%

39 of 46

Open violations

L&I code

▲ block 7% · city 5%

Back taxes

$8K

2 of 46 behind

▼ block 4% · city 9%

Schools

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

Elementary & Middle · K-8

Hamilton Disston

6801 Cottage St · 686 students

High · 9-12

Abraham Lincoln

3201 Ryan Ave · 2332 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 46 parcels

Owner-occupied 39
Investor / LLC 2
Absentee individual 5

Value distribution today

$187K$205K+

The block's largest owner, Asm Group Inc, carries 3 open violations across 9 properties it owns around the city.

Owner	On block	Owns citywide	Portfolio value	Source
Asm Group Inc	1	9	$1.2M	phila.gov ↗
Dwellington Solutions Llc	1	1	$195K	phila.gov ↗

House by house

All 46 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).

Worth a look

Address	Ownership	Value & trend	Sq ft	Built	Flags
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Absentee individual	$191K	—	1950
4100 KNORR ST	Owner-occupied	$207K	—	1950
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Absentee individual	$198K	—	1950
4100 KNORR ST	Owner-occupied	$191K	—	1950
4100 KNORR ST	Owner-occupied	$198K	—	1950
4101 KNORR ST	Absentee individual	$205K	—	1950
4103 KNORR ST	Owner-occupied	$187K	—	1950
4105 KNORR ST	Owner-occupied	$195K	—	1950
4107 KNORR ST	Owner-occupied	$195K	—	1950
4109 KNORR ST	Owner-occupied	$193K	—	1950
4111 KNORR ST	Owner-occupied	$188K	—	1950
4113 KNORR ST	Owner-occupied	$195K	—	1950
4115 KNORR ST	Owner-occupied	$195K	—	1950
4117 KNORR ST	Owner-occupied	$188K	—	1950
4119 KNORR ST	Owner-occupied	$194K	—	1950
4120 KNORR ST	Absentee individual	$192K	—	1950
4120 KNORR ST	Owner-occupied	$192K	—	1950
4120 KNORR ST	Owner-occupied	$191K	—	1950
4120 KNORR ST	Owner-occupied	$191K	—	1950
4120 KNORR ST	Owner-occupied	$201K	—	1950
4120 KNORR ST	Owner-occupied	$214K	—	1950
4120 KNORR ST	Absentee individual	$197K	—	1950
4120 KNORR ST	Owner-occupied	$190K	—	1950
4120 KNORR ST	Owner-occupied	$192K	—	1950
4120 KNORR ST	Investor / LLC	$192K	—	1950	3 viol
4120 KNORR ST	Owner-occupied	$199K	—	1950
4121 KNORR ST	Owner-occupied	$188K	—	1950
4123 KNORR ST	Owner-occupied	$199K	—	1950
4125 KNORR ST	Owner-occupied	$224K	—	1950
4127 KNORR ST	Owner-occupied	$196K	—	1950
4129 KNORR ST	Owner-occupied	$195K	—	1950	1 viol
4131 KNORR ST	Owner-occupied	$195K	—	1950
4133 KNORR ST	Owner-occupied	$194K	—	1950
4135 KNORR ST	Owner-occupied	$196K	—	1950
4137 KNORR ST	Owner-occupied	$196K	—	1950
4139 KNORR ST	Owner-occupied	$188K	—	1950
4141 KNORR ST	Owner-occupied	$196K	—	1950
4143 KNORR ST	Investor / LLC	$195K	—	1950
4145 KNORR ST	Owner-occupied	$187K	—	1950
4147 KNORR ST	Owner-occupied	$198K	—	1950	1 viol

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)