Renovated & sold on
Why it mattersBought for $125K in 2016, demolition permit in 2016, sold for $241K in 2017 (+144%).
View supporting records →Multi-family report
1838 Diamond St
6 bd · 4 ba · 1 story · 3,078 sqft · RM1 · built 1915
Investor / LLC · assessed $473K · 4 licensed units · sold 3×. On the 1800 block of Diamond St.
Property summary
Assessment$473KCity assessed value
Last sale$241KRecorded 2017
Est. annual tax$7K/yearAssessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits6Shown in this report
ViolationsNone openNo open L&I cases
What stands out
From the public recordWhat the record is signaling
Early patterns mined across this property's dated public records. Each flag shows what triggered it and where the inference stops.
Assessment/permit mismatch
The assessment jumped 289% in 2020, but no matching permit appears in the property timeline.
Evidence: assessment moved from $125,400 to $487,800 · no permit shown in 2019-2021
Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.
Transparent record rules, not a machine-learning forecast. A signal is a prompt to verify the cited record, 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
Built 1915: lead rules apply
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.
If you’re the landlord
Lead certificate is not optional
Built 1915: 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.
Licensed rental — keep it that way
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.
Who's behind it
826 Wynnewood Road LLC · corporate / LLC owner
• Tax bills mail to 437 West Gay St, West Chester PA, 19380 — outside Philadelphia
• Holds an active rental license for this address
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
$473K
built 1915
Price / sq ft
$154
block $128 · above block
Appreciation
+29%
+2%/yr, city 6.5%
In 5 years (~2031)
~$474K
+2%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$7K
1.4% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Gross yield
2.6%
≈$1K/mo rent
Times sold
3
licensed rental
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeSalePermitInspection
The paper trail
Renovated & sold onBought for $125K in 2016, demolition permit in 2016, sold for $241K in 2017 (+144%).
- 2009 Inspection failed ×2L&I visit
- 2016 $125KSoldDemolitionPermitElectricalPermitMechanicalPermitMajor alterationPermit
- 2017 PlumbingPermit2 L&I violationsL&IL&I: 1 failed, 1 passedL&I visitSuppressionPermit$241KSold
- 2019 Inspection passedL&I visit
Flags: active rental license. 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.
Bedrooms
6
Bathrooms
4
Stories
1
Interior
3,078 sqft
livable area
Lot
1,512 sqft
Basement
Full, unfinished
city code C
Heat
Hot water / radiators
city code B
Central air
No
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
C+
assessor's grade
ABCDE
Zoning
RM1
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 1838 Diamond St takes, at your price and your rate. Taxes are this building's actual bill from the city record; rent starts at 4 licensed units × ~85% of the area's median unit rent — the whole building's income, not one unit's. Assessed value is not an asking price — set the price slider to the real one.
When this house last sold (2017) a 30-year mortgage ran about 3.99% — 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, $2,800/yr insurance, 1% of price/yr maintenance; taxes from this parcel's record.
Block context
1838 Diamond St sits on the 1800 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1836 Diamond St · 1834 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
- 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.
First time here?
This is 1838 Diamond St,
on paper.
Built 1915. 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)