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Before you make an offer or close

Before you commit to a Philadelphia property, know which public records need a second look.

Enter an address and see the top findings instantly — no email required. Get the full report, with every record and a free daily watch for changes, sent to your inbox.

Always free. Unlimited reports. No account needed.
8 data sources, official Philadelphia and federal sources
Typically under a minute, from address to full report
No account required, just your email
Philadelphia-specific, built for Philly's data

Before you make an offer or close, city records can surprise you.

Violations are on one city system. Permits on another. Tax liens on a third. If you're evaluating a property before an offer or a closing, you need to know what's in these systems now, not after you own the problem. Flagstone pulls it together in seconds, and tells you exactly what to verify before you commit.

"A buyer closes on a rowhouse and discovers unpermitted basement work. Now they own the violation."
- Common scenario
"A homeowner finds out about a demolition permit next door only after the jackhammers start."
- Common scenario
How it works

See what needs a second look before you enter your email.

You type an address. See the top findings instantly, no email required. Get the full report by email, then verify what matters before you make an offer or close.

1

Enter an address

See the top findings instantly, no email required: what needs a second look, and why.

2

Get the full report by email

Every record, the full permit and violation history, and a free daily watch for changes to this property.

3

Verify and act

Official links to check every finding yourself, what document to request, and who can help you get it.

What's in every report

Property Snapshot
Parcel data, ownership, assessed value, sale history, year built, building type, zoning. All in one place.
Permit & Violation History
All permits and violations on file with L&I: what was done, who did it, and current status.
Interactive Map + Street View
See the property in context: nearby violations marked, 311 heat layer, Street View link. Know the block, not just the address.
Record Status + Plain-English Summary
A clear status, the official records driving it, and an AI-written analysis of what to verify next. Nearby context is kept separate from subject-property obligations.
Recommended Next Steps
Specific, actionable questions to ask, inspections to order, and documents to request, tailored to what we found.
Tax Delinquency Status
Outstanding tax balances, years owed, and whether the property has been flagged for sheriff sale.

Explore an illustrative report

This walkthrough uses a dated snapshot of real public records for 1346 S 9th St. It demonstrates the report layout; run the address yourself for current records and the latest analysis.

View Sample Report Run Your Own
Also useful for Investors and landlords running due diligence, current owners keeping an eye on their block, agents and attorneys prepping clients, and inspectors doing pre-visit homework.
Questions

Common questions

Where does the data come from?
Official Philadelphia and federal sources: OPA assessments, L&I permits and violations, 311 requests, deed transfers, tax delinquency, police incident data, and FEMA flood zones. Flagstone's status and AI summary are interpretations, not official determinations or guarantees.
How fast do I get my report?
Typically under a minute. Enter an address and email, and we'll query all 8 sources, run the analysis, and deliver your report by email with a shareable link.
Does this replace a home inspection?
No. We show what city records say. An inspector shows what's physically in the building. You need both, and we'll tell you which inspections to order.
What if the property has no violations or permits?
We won't call that "good news" or "clean" — we'll say nothing was found in the records checked. That means the property hasn't been flagged in the systems we search, but city records don't cover physical condition, so it isn't a substitute for an inspection. Every report distinguishes records found, nothing found in the records checked, and data unavailable for a given source.
Do you cover properties outside Philadelphia?
Not yet. We're Philadelphia-first because Philly has uniquely rich public data. Other cities are on the roadmap.
Can I share the report with my agent or attorney?
Yes. Every report includes a shareable web link. Send it to anyone involved in the transaction.
How should I interpret the record status?
It summarizes subject-property public records such as open violations, failed inspections, expired permits, tax delinquency, and flood-zone flags. Nearby activity is shown separately as context. Use the underlying records and source links—not the status alone—for decisions.
What can't this report tell me?
Physical building condition (get an inspection), title issues (get a title search), and environmental contamination beyond flood zones. We show what the city has on file, not what isn't recorded.
From the blog

Philadelphia property guides

Practical, Philly-specific guides for buyers, investors, and landlords.

Home Inspection & Due Diligence
Philadelphia home inspection guide: rowhouses, investment properties, and what buyers need to know
Party walls, K&T wiring, galvanized pipes, flat roofs, sewer scope — Philly rowhouses have unique risks. Covers inspection contingency, costs, and an 8-item checklist.
Home Inspection & Environmental
Philadelphia underground oil tanks: what buyers and property owners need to know
Buried heating oil tanks are common in pre-1970s Philly rowhouses. Covers how to find them, removal vs. remediation costs, PA DEP rules, and buyer contract options.
Real Estate Financing
Philadelphia cash-out refinance guide: how to tap home equity in Philly
How cash-out refi works, LTV limits by loan type (conventional/FHA/VA/investment), costs, Philadelphia-specific factors (violations, abatement, flood zone), and a 10-item homeowner checklist.
View all guides →

Check any Philadelphia address. Always free.

8 official data sources. Violations, permits, tax records, 311 requests, and location context — explained in plain English.