Frequently traded
Why it mattersTraded 3×: $105K in 2008 → $270K in 2025 (+157%).
View supporting records →Multi-family report
2131 W Dauphin St
3 bd · 3 ba · 3 stories · 1,944 sqft · RSA5 · built 1915
Investor / LLC · assessed $188K · 3 licensed units · sold 3×. On the 2100 block of W Dauphin St.
Property summary
Assessment$188KCity assessed value
Last sale$270KRecorded 2025
Est. taxes$3K/yearAnnual city record
Permits0Shown 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
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.
3 units in RSA5, a single-family district
The building's use almost certainly predates today's code — a "legal nonconforming" use. That status survives a sale but can lapse if the use is abandoned or the building sits vacant; verify the registered use with L&I before pricing it as 3 rents.
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
Alion Investments LLC · corporate / LLC owner
• Owns 48 properties across Philadelphia under this name, assessed at $12M combined
• Tax bills mail to 1320 Katie Ln, North Wales PA, 19454 — outside Philadelphia
• Holds an active rental license for this address
• The last transfer was a nominal/family deed, not an open-market sale
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
$188K
built 1915
Price / sq ft
$97
block $69 · above block
Appreciation
+384%
+15%/yr, city 6.5%
In 5 years (~2031)
~$190K
+15%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$3K
1.4% effective
Gross yield
4%
≈$631/mo rent
Times sold
3
kept in the family
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeSaleL&I violationPermitInspection
The paper trail
Frequently tradedTraded 3×: $105K in 2008 → $270K in 2025 (+157%).
- 2008 $105KSold
- 2011 5 L&I violationsL&IInspection failed ×2L&I visit
- 2015 16 L&I violationsL&IL&I: 1 failed, 2 passedL&I visit
- 2020 4 L&I violationsL&IInspection failed ×2L&I visit
- 2021 L&I: 1 failed, 1 passedL&I visit
- 2022 $70KSold
- 2025 $270KSold
Flags: active rental license · long-held within one family. 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
3
Bathrooms
3
Stories
3
Interior
1,944 sqft
livable area
Lot
1,072 sqft
Basement
Full, unfinished
city code C
Heat
Undetermined
city code H
Central air
No
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
C
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 2131 W Dauphin St takes, at your price and your rate. Taxes are this building's actual bill from the city record; rent starts at 3 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 (2025) a 30-year mortgage ran about 6.6% — 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, $2,100/yr insurance, 1% of price/yr maintenance; taxes from this parcel's record.
Block context
2131 W Dauphin St sits on the 2100 block of W Dauphin St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 2129 W Dauphin St · 2127 W Dauphin 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 2131 W Dauphin 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)