2026 taxable assessment $106,500 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $114,200; it is not the 2026 billed-year value.
House report
1437 N Alden St
3 bd · 1 ba · 1 story · 1,068 sqft · RSA5 · built 1920
Entity-held · assessed $107K (2026) · 2027 OPA assessment $114K · sold 1×. On the 1400 block of N Alden St.
BlockReport AI · cited public records
Ask what this property record means.
Open the research chat with this property already in context. Curated questions are free.
Property summary
Assessment$106,5002026 OPA assessment · 2027: $114,200
Last sale$10KRecorded 2017 · later nominal deed
Est. tax bill$1,491/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits6Every fetched City permit
Violations0 open1 historical across 1 case
“Open” reflects records available then historical records keep their source dates estimates are labeled
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:
Property tax
The estimate, live balance, and back-tax record are different.
BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.
A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit—or an amount due—is not automatically “back taxes.”
OPA 0431143002026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records $7,144.36 and a lien entry. It is shown as historical context only.
2010$1,147.23 total · $549.38 principal · $304.91 interest · $38.46 penalty2011$1,304.57 total · $788.75 principal · $366.77 interest · $55.21 penalty2013$1,240.04 total · $848.60 principal · $241.85 interest · $59.40 penalty2014$1,228.39 total · $847.55 principal · $165.28 interest · $59.33 penalty2015$1,147.53 total · $847.55 principal · $89.00 interest · $59.33 penalty2016$1,076.60 total · $906.30 principal · $13.60 interest · $9.06 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
What stands out
From the public recordPermit on record
Record summary$10K transfer recorded in 2017. Addition and/or Alterations permit recorded in 2021.
View supporting records →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 1920: 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.
Zoned RSA5: one household by right
Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.
The last transfer used nominal consideration
The latest deed records $100 or less. That is not a usable market-sale price and can reflect a family, estate, gift, correction, or entity transfer. Inspect the deed and order a title search rather than inferring the relationship or chain.
If you own it
$7,144 in the historical tax ledger through 2016
Historical context only, not a current payoff figure; that ledger also contains a lien entry. Verify today's balance and lien status directly with Philadelphia Revenue before relying on it.
If you’re the landlord
Lead certificate is not optional
Built 1920: 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 the fetched property records and linked City guidance as of 2026. Assessment treatment is not a substitute for an exemption approval, live balance, title report, license, occupancy certificate, or inspection. Informational only — not legal, tax, or investment advice.
Who's behind it
Philadelphia Lotus 11a LLC · corporate / LLC owner
• Owns 29 properties across Philadelphia under this name, assessed at $4.9M combined
• Tax bills mail to 829 N 29th St #5, Philadelphia PA, 19130
• Holds an active rental license for this address
Assessment and tax history
Every fetched annual City assessment for this house, compared with its block and ZIP. The figures show assessment change, the billed-year tax estimate, dated tax records, and recorded transfers. They do not estimate market appreciation or investment return.
Assessed value
$106,500
2026 billed-year assessment · 2027: $114,200 · built 1920
Price / sq ft
$107
block $107 · in line w/ block
Assessment change
+103%
+7%/yr since 2016 · 2027 +7% vs 2026
Est. tax bill / yr
$1,491
1.4% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
1
licensed rental
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$56K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2017$56K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2018$56K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2019$61K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2020$63K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2021$63K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2022$63K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2023$76K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2024$76K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2025$107K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2026$107K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2027$114K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- Deed / sale · 2017Deed / sale $10KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Permit · 2016-01-14ElectricalThis permit category usually covers electrical installation, alteration, replacement, or repair. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2019-09-27Addition and/or AlterationThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2021-10-07Addition and/or AlterationThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2021-10-07AlterationsThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2021-10-11Addition and/or AlterationsThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- L&I violation · 2019-10-16DENIED ACCESS INSP BLDG PERMITA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- License · 2022-09-16RentalA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
Property assessmentBlock median & rangeZIP 19131 medianAssessmentDeed / saleL&I violationPermitLicense
Scroll horizontally to move through the years. Each icon sits on its recorded date; records without a day are labeled and centered within their year. Select one to explain the filing.
Highlight
Every dated record8 events · exact dates, newest first
- LicenseRental
- PermitAddition and/or Alterations
- PermitAddition and/or Alteration
- PermitAlterations
- L&I violationDENIED ACCESS INSP BLDG PERMIT
- PermitAddition and/or Alteration
- Deed / saleDeed / sale $10K
- PermitElectrical
The paper trail
Permit on record$10K transfer recorded in 2017. Addition and/or Alterations permit recorded in 2021.
- 2016 ElectricalPermit
- 2017 $10KTransfer
- 2019 L&I violationL&IAddition and/or AlterationPermit
- 2021 Addition and/or AlterationPermitAddition and/or AlterationPermitAlterationsPermitAddition and/or AlterationsPermit
Records behind the chart
Browse the source ledger
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
Browse 9 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- LicenseRental
License 906163 · Active
Philadelphia Lotus 11A LLC · Expires 2026-09-15
- PermitAddition and/or Alterations
Permit MP-2021-006435 · Expired
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES - For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. EACH HVAC UNIT TO BE SELF-CONTAINED WITHIN EACH DWELLING UNIT. NO PENETRATIONS OF RATED ASSEMBLIES. (Install (1) One Gas Furnace and duct work - Gas Furnace 92% efficient, 60,000 BTU, 1200 CFM AS PER EZ HVAC STANDARD. No condenser to be installed at this property.)
- PermitAddition and/or Alteration
Permit EP-2021-011322 · Completed
Install outlets, lights, switches, fixtures, smoke/co detectors as per 2017 NEC. Amendment: Completed Work: Equipment Replacement only. Electrical service is existing. All interior wiring is existing.
- PermitAlterations
Permit PP-2021-018309 · Expired
FIXTURE INSTALLATION INSTALLATION OF WATER SUPPLY PIPING TO FIXTURES INSTALLATION OF SOIL AND WASTE PIPING FROM FIXTURES TYPES OF FIXTURES: NEW DRAIN & WATER LINES TO FIXTURES 1 ROOF DRAIN, 2-TOILETS, 2-LAVATORIES, 1-TUB, 1-KITCHEN SINK, 1-WASHER & 1-WATER HEATER AMEND INSTALLATION WITHOUT PIPING. AMEND completed work: FIXTURE INSTALLATION only. TYPES OF FIXTURES: 2-TOILETS, 2-LAVATORIES, 1-TUB, 1- KITCHEN SINK, 1-WASHER & 1-WATER HEATER OTHER: 1-WASHER water supply piping to fixtures is existing. SOIL AND WASTE PIPING FROM FIXTURES is existing. roof drain is existing. OTHER: 1-WASHER
- PermitAddition and/or Alteration
Permit RP-2021-015756 · Expired
EZ PERMIT STANDARDS ALTERATIONS - For alterations to an Existing One Family Dwelling as per attached standard. Deviations from this standard will result in permit revocation and require submission of construction plans. Structural alteration or repair is expressly prohibited under this permit. Prohibited structural work any modifications to exterior walls, party walls, floor/roof framing or foundations, including underpinning, excavation, and removal of foundation slab. WORK IN THE BASEMENT OR CELLAR IS NOT INCLUDED ON THE EZ ALT PERMIT. Separate permits required for Mechanical, Electric and Plumbing. Window replacement, in existing openings, with no size alterations and a U-Factor N.T.E. 0.32. Window trim to be repaired, as required. Installation of new 4? vinyl siding, gray, over existing stucco along front fa?ade. New layer stucco, over existing, where required. New hardwood flooring throughout, over existing subfloor. Damaged floor sheathing to be replaced with 3/4" T&G Plywood sheathing, where required. Replacement of exterior doors, in existing openings, with no size alterations. Door trim to be repaired as required. New interior wood stud framing, for non-load bearing partition walls. Installation of 1/2" GWB drywall, for wall and ceiling coverings, throughout. Installation of floor tiles and wet walls in bathroom and laundry area, over existing subfloor. Damaged floor sheathing to be replaced with 3/4" T&G Plywood sheathing.
- ViolationDENIED ACCESS INSP BLDG PERMIT
Case 1014544 · Violation 5215058 · Code A-401.1/1 · CLOSED
City marked the record closed; open the case for the closing reason.
- PermitAddition and/or Alteration
Permit 1014544 · Expired
For alterations to an Existing One Family Dwelling as per attached standard. Deviations from this standard will result in permit revocation and require submission of construction plans. STRUCTURAL ALTERATION OR REPAIR IS EXPRESSLY PROHIBITED UNDER THIS PERMIT. PROHIBITED STRUCTURAL WORK INCLUDES ANY MODIFICATION TO EXTERIOR WALLS, PARTY WALLS, FLOOR/ROOF FRAMING OR FOUNDATIONS; UNDERPINNING AND EXCAVATIONS (I.E. DIGGING IN BASEMENT).
- Recorded transfer$10K transfer
2017
- PermitElectrical
Permit 661126 · COMPLETED
INSTALL 100A SERVICE, 12- CIRCUITS... IN ACCORDANCE WITH 2008 NEC FOR A ONE FAMILY BUILDING
What this record suggests
The City file documents 6 permits touching kitchen work, bathroom work, flooring, drywall / interior finishing. 2 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: active rental license · historical tax ledger through 2016 recorded $7K with a lien entry. Informational only — not investment advice or a consumer report (FCRA).
The property, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Bedrooms
3
Bathrooms
1
Stories
1
Interior
1,068 sqft
livable area
Lot
1,069 sqft
Basement
Full, unfinished
city code C
Heat
Hot water / radiators
city code B
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 1437 N Alden 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.
Mortgage
—
P&I · 30-yr fixed
All-in monthly
—
+ taxes & insurance
Estimated cash needed
—
down + 4% planning allowance
Modeled cash flow
—
rent − shown costs · /mo
Modeled cap rate
—
modeled NOI ÷ price
Modeled cash-on-cash
—
modeled year-1 return
Scenario for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance, and buyer cash equal to the down payment plus 4%. Taxes use this parcel's taxable assessment, not a live Tax Center balance. Cash flow and returns exclude vacancy, management, utilities, HOA or condo fees, leasing costs, income tax, and unplanned capital work.
Block context
1437 N Alden St sits on the 1400 block of N Alden St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1435 N Alden St · 1439 N Alden 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
This report was assembled Jul 10, 2026, 9:10 PM ET. Available City datasets are queried from OpenDataPhilly (phl.carto.com) and the cited City ArcGIS feeds; record queries paginate rather than silently taking a first page. For this property: Permits: queried · Violations: queried · Investigations: queried · Appeals: queried · Licenses: queried · Building certifications: queried. “Unavailable” means the source query failed or was not supplied, not “no record.” Reports re-pull on view after seven days and on an overnight rolling schedule; citywide benchmarks recompute weekly. Source dates still govern: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. The live balance and date-effective payoff must be verified in Tax Center. AI-written passages are grounded in the assembled record and rejected if they state a number the record does not hold.
Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)