New construction
Why it mattersbuilt new under a 2007 permit.
View supporting records →Mixed-use report
815 S 4th St
2,430 sqft · CMX2 · built 2008
Owner-occupied · assessed $544K · sold 1×. On the 800 block of S 4th St.
Property summary
Assessment$544KCity assessed value
Last sale$110KRecorded 2004
Est. taxes$8K/yearAnnual city record
Permits6Shown in this report
Violations7Open L&I cases
What stands out
From the public recordWhat 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 own it
$1,399/yr may be unclaimed
This home reads owner-occupied but shows no Homestead Exemption, which removes $100,000 from the taxable assessment (worth up to $1,399/yr). Applying through the City is free and takes minutes.
7 open violations: the clock matters
L&I appeals must be filed within 30 days — just 6 days if a property is designated UNSAFE or IMMINENTLY DANGEROUS. Left unresolved, the city can do the work itself, bill the owner (routinely $50,000+ on a rowhouse), lien the property, and add court fines of $300+/day.
$8,615 in back taxes on record
Interest and penalties keep compounding until a Revenue payment agreement is in place — an owner-occupant agreement also stops the sheriff-sale track.
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 investment read
How this building 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 record to dig into any number.
Assessed value
$544K
built 2008
Price / sq ft
$224
block $242 · below block
Appreciation
+72%
+5%/yr, city 6.5%
In 5 years (~2031)
~$546K
+5%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$8K
1.4% effective
Gross yield
4%
≈$2K/mo rent
Times sold
1
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeL&I violationZoningPermit
The paper trail
New constructionbuilt new under a 2007 permit.
- 2007 MechanicalPermit
- 2008 Appeal approvedZoningAdministrativePermit
- 2015 2 L&I violationsL&IInspection failed ×2L&I visitPlumbingPermit
- 2018 Appeal granted with conditionsZoningUsePermit
- 2025 Change of UsePermit
- 2026 Signs (Accessory / Non-Accessory)Permit7 L&I violationsL&IInspection failed ×5L&I visit
Flags: 7 open L&I violations · $9K back taxes · 2 zoning/board appeals on record. Informational only — not investment advice or a consumer report (FCRA).
The house, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Interior
2,430 sqft
livable area
Lot
956 sqft
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
B-
assessor's grade
ABCDE
Zoning
CMX2
city zoning code
Zoning appeals
2
granted with conditions 2018
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 815 S 4th 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.
When this house last sold (2004) a 30-year mortgage ran about 5.84% — Freddie Mac's average that year.
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.
Block context
815 S 4th St sits on the 800 block of S 4th St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 813 S 4th St · 811 S 4th 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
Methodology & freshness
City datasets are fetched live from OpenDataPhilly (phl.carto.com) and cached briefly. Dossiers re-pull automatically — on view once they're a few weeks old, plus a nightly rolling sweep — 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 815 S 4th St,
on paper.
Built 2008. 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)