House report
640 Brooklyn St
4 bd · 1 ba · 2 stories · 1,422 sqft · RM1 · built 1925
Absentee individual · assessed $254K. On the 600 block of Brooklyn St.

Reading this house's deeds, permits and assessments…
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.
Value vs. the block, over time
built new under a 2013 permit (tax-abated).
- 2012 2 L&I violationsL&I
- 2013 Major alterationPermit
- 2015 L&I violationL&I
- 2017 Major alterationPermit
- 2018 AlterationPermitPlumbingPermitElectricalPermitMechanicalPermit3 L&I violationsL&I
Flags: tax-abated — the bill lags real value · active rental license · $13K back taxes (1997–2016, $5K of it interest & penalties, lien filed) · long-held within one family. Informational only — not investment advice or a consumer report (FCRA).
The abatement clock
This house pays about $726/yr under a 10-year tax abatement that steps down every year. In 2033 the bill reaches its full ~$3,558/yr — a step up of $2,832/yr, 6 assessment years out. Drag the slider.
Estimated from this parcel's assessment record (taxable vs. exempt split) at the 1.3998% millage and today's assessed value — reassessments will move it. Program inferred from when the exemption first appears (2023: post-2022 taper, 10% steps). After expiry an owner-occupant can claim the Homestead Exemption (~$1,400/yr off); an abated home can't hold both.
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
Today's $726/yr reflects a 10-year abatement. It steps up every year and reaches about $3,558/yr in 2033 — $2,832/yr more. Price the full bill, not the current one.
Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.
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
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.
If you’re the landlord
Built 1925: every rental unit needs a lead-safe or lead-free certificate on file with the City. Without one: fines up to $2,000/day per unit, tenants may withhold rent, courts can order rent refunded — and no eviction will stand.
Renewal requires city tax clearance and zero open L&I violations on the property. A lapsed license suspends the right to collect rent or evict.
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.
The house, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 640 Brooklyn 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.
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 (with the abatement toggle above).
Next door: 638 Brooklyn St · 642 Brooklyn 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
- Imagery — Street photo © Google · Aerial © Esri, Maxar
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.
Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)