New construction
Why it mattersBought for $628K in 2017, built new under a 2023 permit (tax-abated), sold for $820K in 2021.
View supporting records →House report
1428 S 4th St
4 bd · 4 ba · 2 stories · 2,893 sqft · built 2017
Owner-occupied · assessed $719K · sold 2×. On the 1400 block of S 4th St.
Property summary
Assessment$719KCity assessed value
Last sale$820KRecorded 2021
Est. annual tax$7K/yearAssessment × 1.3998%
Tax delinquency—Snapshot unavailable
Permits1Dated events in report
ViolationsNone openNone open when assembled
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport AI · cited public records
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Question or correct this record
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
What stands out
From the public recordRecords to verify together
Rule-based groupings across this property's dated public records. Each flag shows the records that belong in the same verification step and where the inference stops.
Post-purchase work pattern
A recorded purchase followed by 1 permit event matches the early part of a renovate-and-resell sequence.
Evidence: purchase recorded in 2021 · permit activity in 2023
Limit: This does not show that the property is listed or that a sale is planned.
Transparent record rules, not a score or forecast. Each flag is a prompt to verify the cited records, not a prediction or allegation.
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 current tax estimate is temporary
The taxable assessment implies about $7,376/yr under a 10-year abatement. It jumps to about $10,058/yr in 2028 — $2,682/yr more. Underwrite the post-abatement estimate and verify the actual bill with Revenue.
If you own it
When the abatement ends, file for Homestead
An abated home cannot also take the Homestead Exemption. From 2028 it can — knocking about $1,400/yr off the full bill.
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 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 record to dig into any number.
Assessed value
$719K
built 2017
Price / sq ft
$248
block $248 · in line w/ block
Appreciation
+15%
+2%/yr, city 6.5%
In 5 years (~2031)
~$719K
+2%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$7K
1.03% effective, abated
Jun 2022 tax snapshot
—
Gross yield
3.7%
≈$2K/mo rent
Times sold
2
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeSalePermit
The paper trail
New constructionBought for $628K in 2017, built new under a 2023 permit (tax-abated), sold for $820K in 2021.
- 2017 $628KSold
- 2021 $820KSold
- 2023 Addition and/or AlterationPermit
Flags: tax-abated — the bill lags real value. Informational only — not investment advice or a consumer report (FCRA).
The abatement clock
This house’s taxable assessment implies about $7,376/yr under a 10-year tax abatement. In 2028 the assessment-based estimate reaches ~$10,058/yr — a step up of $2,682/yr, 1 assessment year out. Drag the slider.
now: ($718,500 assessed − $191,568 abated) × 1.3998% ≈ $7,376/yr
2028: $718,500 assessed × 1.3998% ≈ $10,058/yr
Flat 100% exemption (pre-2022 program, started 2018), then the cliff — reassessments move both lines. After expiry an owner-occupant can claim the Homestead Exemption (~$1,400/yr off); an abated home can't hold both.
The house, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Bedrooms
4
Bathrooms
4
Stories
2
Interior
2,893 sqft
livable area
Lot
880 sqft
Basement
Partial
city code H
Heat
Forced hot air
city code A
Central air
Yes
Garage
2 spaces
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
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 1428 S 4th St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; 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 (2021) a 30-year mortgage ran about 2.96% — 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 (with the abatement toggle above).
Block context
1428 S 4th St sits on the 1400 block of S 4th St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1426 S 4th St · 1430 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
- 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.
Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)