Improved
Why it mattersBought for $170K in 2004. Owner pulled a plumbing permit in 2010.
View supporting records →Commercial property report
6439 Castor Ave
1 story · 1,200 sqft · CMX1 · built 1960
Store · Chen Investment LLC · assessed $330K. On the 6400 block of Castor Ave.
Property summary
Assessment$330KCity assessed value
Last sale$125KRecorded 2013
Est. annual tax$5K/yearAssessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits1Shown in this report
ViolationsNone openNo open L&I cases
Historical tax record
Verify the current balance before relying on it.
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records $9K and a lien entry. It is shown as historical context only.
Verify current balance with Philadelphia Revenue →What stands out
From the public recordWhat the record is signaling
Early patterns mined across this property's dated public records. Each flag shows what triggered it and where the inference stops.
Assessment/permit mismatch
The assessment jumped 50% in 2027, but no matching permit appears in the property timeline.
Evidence: assessment moved from $219,000 to $329,500 · no permit shown in 2026-2028
Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.
Transparent record rules, not a machine-learning forecast. A signal is a prompt to verify the cited record, not a prediction or allegation.
Commercial propertyProperty report
This is a store, recorded under the city's commercial category. The homeowner tools (rent estimate, homestead playbook) don't apply, so they're hidden. The full record and owner trail are below.
historical lien entry · through 2016
What it is
Store
Store 1 Sty Masonry
Owner
Chen Investment Llc
Tax standing
Assessed $330K
On the tax roll
$ / sq ft
$275
above the $130 median for 12,035 commercial parcels citywide
Corridor
Castor and Magee
city commercial corridor
Assessed value
$330K
City market value
Interior area
1,200 sqft
Lot size
1,704 sqft
Stories
1
Built
1960
Zoning
CMX1
Block context
6439 Castor Ave sits on the 6400 block of Castor Ave. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 6437 Castor Ave · 6441 Castor Ave
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
- Tax delinquency snapshot · June 2022 — Real Estate Tax Delinquencies, Dept. of Revenue
- Historical tax ledger & liens · through 2016 — Real Estate Tax Balances, Dept. of Revenue
- Current property-tax balance — Verify with Philadelphia 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
- Imagery — Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
Available City datasets are queried from OpenDataPhilly (phl.carto.com), then reports are cached and refreshed on a rolling schedule. Source dates vary: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. Other dossiers re-pull on view once stale, 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.
First time here?
This is 6439 Castor Ave,
on paper.
Built 1960. Every deed, permit, L&I visit, tax bill and sale for this house — plus its whole block.
No signup, no teaser
The whole record is free.
Permits, violations, taxes, deeds, ownership, and block context are all here. The public record is free to read; membership is for deeper research.
Three taps, you're oriented
What to catch on the way down.
On the way down: the story of the house, its paper trail drawn on the value chart, and run-the-numbers, a calculator seeded with this house's actual tax bill.
Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)