New construction
Why it mattersbuilt new under a 2018 permit (tax-abated).
View supporting records →Multi-family report
1431 Diamond St
12 bd · 3 stories · 4,851 sqft · RM1 · built 2017
Investor / LLC · assessed $698K · sold 2×. On the 1400 block of Diamond St.
Property summary
Assessment$698KCity assessed value
Last sale$400KRecorded 2016
Est. taxes$2K/yearAnnual city record
Permits5Shown in this report
ViolationsNone openNo open 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’re buying
The tax bill is temporary
Today's $1,954/yr reflects a 10-year abatement. It jumps to about $9,775/yr in 2029 — $7,821/yr more. Price the full bill, not the current one.
If you’re the landlord
No active rental license on file
If this property is rented, Philadelphia requires a Rental License (via eCLIPSE) — without it a landlord cannot legally collect rent or evict, and tenants can withhold. Licensing needs tax clearance and no open violations.
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
Laykin Holdings LLC · corporate / LLC owner
• Owns 3 properties across Philadelphia under this name, assessed at $1.9M combined
• Tax bills mail to 11364 Konneyaut Trail Extension, Conneaut Lake PA, 16316 — outside Philadelphia
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
$698K
built 2017
Price / sq ft
$144
block $144 · in line w/ block
Appreciation
+3960%
+40%/yr, city 6.5%
In 5 years (~2031)
~$712K
+40%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$2K
0.28% effective, abated
Gross yield
-1145639.4%
≈$-667M/mo rent
Times sold
2
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeL&I violationInspection
The paper trail
New constructionbuilt new under a 2018 permit (tax-abated).
- 2018 AdministrativePermitPlumbingPermitSuppressionPermitPlumbingPermit3 L&I violationsL&IAdministrativePermit
- 2019 3 L&I violationsL&IInspection failed ×5L&I visit
- 2020 Inspection passed ×2L&I visit
- 2024 3 L&I violationsL&IL&I: 5 failed, 1 passedL&I visit
- 2025 Inspection failed ×3L&I visit
Flags: tax-abated — the bill lags real value · 1 zoning/board appeal on record. Informational only — not investment advice or a consumer report (FCRA).
The abatement clock
This house pays about $1,954/yr under a 10-year tax abatement. In 2029 the bill reaches its full ~$9,775/yr — a step up of $7,821/yr, 2 assessment years out. Drag the slider.
now: ($698,300 assessed − $558,709 abated) × 1.3998% ≈ $1,954/yr
2029: $698,300 assessed × 1.3998% ≈ $9,775/yr
Flat 100% exemption (pre-2022 program, started 2019), 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
12
Stories
3
Interior
4,851 sqft
livable area
Lot
2,088 sqft
Basement
Full
city code D
Heat
Forced hot air
city code A
Central air
Yes
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
RM1
city zoning code
Zoning appeals
1
granted 2017
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 1431 Diamond 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 (2016) a 30-year mortgage ran about 3.65% — 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
1431 Diamond St sits on the 1400 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1429 Diamond St · 1433 Diamond 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 1431 Diamond St,
on paper.
Built 2017. 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)