House report

4019 Brown St

Vacant · assessed $72K. On the 4000 block of Brown St.

From above — imagery © Esri, Maxar

The story of this houseAI · written from the public record

Reading this house's deeds, permits and assessments…

What to do with this

The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.

If you’re buying

The last transfer was not a sale

The most recent recorded deed moved for nominal consideration, within one family. That is where tangled-title problems live — budget a real title search. (Occupants untangling an inherited deed can get help from the city's Tangled Title Fund.)

If you own it

$747 in back taxes on record

Interest and penalties keep compounding until a Revenue payment agreement is in place, and a lien is already filed — an owner-occupant agreement also stops the sheriff-sale track.

Construction next door (4021 Brown St, 2025)

Excavation deeper than 5 feet, or within 10 feet of an adjacent structure, legally requires the developer to survey neighboring homes first and give owners 10 days' written notice. Insist on the pre-construction survey — it is your evidence if cracks appear.

Derived from this house's public records and the city's rules as of 2026 (abatement ordinance, Homestead, rental licensing, lead certification, L&I process, excavation protections). Informational only — not legal, tax, or investment advice.

Who's behind it

Ryan Investment Co

• Owns 2 properties across Philadelphia under this name, assessed at $392K combined
• The last transfer was a nominal/family deed, not an open-market sale

City record ↗

The good part · AI research analyst

Ask anything about this house

Everything on this page is one question away from more. The analyst searches all 580,000+ Philadelphia properties, live — every deed, permit, violation, tax bill, license, zoning appeal, school and crime record — and answers with the sources it checked. Not a chatbot reading this page: it runs the city's records for you.

The questions above run free, no card. Typed questions come with membership — free to start, cancel anytime.

The investment read

How this house has moved and where it's pointed: the city's assessed value (not a listing price) over 12 years, charted against its block; appreciation is that history's pace, and the 5-year figure simply extends it. Yield estimates rent-vs-price from area rents. Ask the analyst below to dig into any number.

Assessed value

$72K

Price / sq ft

—

block $71 ·

Appreciation

+1037%

+25%/yr, city 6.5%

In 5 years (~2031)

~$72K

+25%/yr own pace held 5 yrs — extrapolation, not a forecast

Est. tax / yr

$1K

1.4% effective

Gross yield

—

Times sold

kept in the family

Value vs. the block, over time — sales, permits & L&I events marked on the line

This houseBlock median & rangeL&I violationPermit

The paper trailNew construction

built new under a 2020 permit.

2007 4 L&I violationsL&I
2020 New construction, addition, GFA changePermit
2021 New ConstructionPermitNew ConstructionPermit
2022 New ConstructionPermit
2023 L&I violationL&INew Construction or AdditionsPermitNew ConstructionPermit
2024 New Construction or AdditionsPermit
2025 2 L&I violationsL&I

Flags: $747 back taxes (2011–2016, $96 of it interest & penalties, lien filed) · long-held within one family. Informational only — not investment advice or a consumer report (FCRA).

Run the numbers

What owning 4019 Brown St takes, at your price and your rate. Taxes are this house's actual bill from the city record; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.

Purchase price$72K

Down payment20%

Mortgage rate6.875%

Monthly rent$700/mo

Mortgage

—

P&I · 30-yr fixed

All-in monthly

—

+ taxes & insurance

Cash to close

—

down + ~4% costs

Cash flow

—

rent − all costs · /mo

Cap rate

—

NOI ÷ price

Cash-on-cash

—

year-1 return on cash in

Estimates for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance; taxes from this parcel's record.

Next door: 4017 Brown St · 4021 Brown St

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
Back taxes & liens — Real Estate Tax Balances, Dept. of 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

City datasets are fetched live from OpenDataPhilly (phl.carto.com) and cached briefly. AI-written passages are generated from these records only and rejected if they state a number the record doesn't hold.

I research this house against all 580,000+ Philadelphia property records, live — 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.

Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)