2026 taxable assessment $368,900 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $484,700; it is not the 2026 billed-year value.
House report
1205 S 18th St
3 stories · 1,980 sqft · RSA5 · built 2012
Owner-occupancy signal · assessed $469K (2026) · 2027 OPA assessment $485K · sold 3×. On the 1200 block of S 18th St.
BlockReport AI · cited public records
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Property summary
Assessment$468,9002026 OPA assessment · 2027: $484,700
Last sale$310KRecorded 2012
Est. tax bill$5,164/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits9Every fetched City permit
Violations0 openNo historical match in fetched records
“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 3652450102026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
Historical delinquency sources No current conclusion
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
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 recordNew construction
Record summary$3K transfer recorded in 2004; new construction appears in a 2011 permit, followed by a recorded transfer of $310K in 2012.
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
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.
If you own it
Construction next door (1203 S 18th St, 2024)
Excavation deeper than 5 feet, or within 10 feet of an adjacent structure, legally requires the developer to survey neighboring homes first and give owners 10 days' written notice. Insist on the pre-construction survey — it is your evidence if cracks appear.
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.
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
$468,900
2026 billed-year assessment · 2027: $484,700 · built 2012
Price / sq ft
$245
block $238 · in line w/ block
Assessment change
+100%
+7%/yr since 2016 · 2027 +3% vs 2026
Est. tax bill / yr
$5,164
1.1% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
3
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$242K 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$242K 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$242K 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$426K 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$458K 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$458K 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$458K 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$458K 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$458K 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$469K 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$469K 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$485K 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 ↗
- Land buy · 2004Land record $3KA land-record event associated with this parcel. Review the recorded instrument to determine whether it reflects a conveyance, parcel change, or another filing.How to read the recorded document ↗
- Land buy · 2011Land record $48KA land-record event associated with this parcel. Review the recorded instrument to determine whether it reflects a conveyance, parcel change, or another filing.How to read the recorded document ↗
- Deed / sale · 2012Deed / sale $310KA 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 · 2011-12-29Zoning/useThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2012-02-23New constructionThis 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 · 2012-03-28ElectricalThis 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 · 2012-04-20PlumbingThis permit category usually covers water, drainage, fixtures, or other plumbing 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 · 2012-04-03MechanicalThis 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 · 2012-04-18SuppressionThis permit category usually covers fire-suppression systems or related life-safety 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 · 2012-08-21AdministrativeThis 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 · 2025-01-15Wall Covering ReplacementThis 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 ↗
Property assessmentBlock median & rangeZIP 19146 medianAssessmentDeed / saleLand buyPermit
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 record11 events · exact dates, newest first
- PermitWall Covering Replacement
- PermitAdministrative
- PermitPlumbing
- PermitSuppression
- PermitMechanical
- PermitElectrical
- PermitNew construction
- Deed / saleDeed / sale $310K
- PermitZoning/use
- Land buyLand record $48K
- Land buyLand record $3K
The paper trail
New construction$3K transfer recorded in 2004; new construction appears in a 2011 permit, followed by a recorded transfer of $310K in 2012.
- 2004 $3KLand transfer
- 2011 $48KLand transferZoning/usePermit
- 2012 New constructionPermitElectricalPermitPlumbingPermitMechanicalPermitSuppressionPermitPlumbingPermitAdministrativePermit$310KTransfer
- 2025 Wall Covering ReplacementPermit
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 12 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- PermitWall Covering Replacement
Permit GM-2025-000385 · Expired
For minor construction work at the subject property in accordance with all applicable provisions of the Philadelphia Code, all references codes and standards, and the attached EZ Standard, where included. Deviation from this standard shall result in permit revocation. A separate permit from the Philadelphia Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work.
- PermitAdministrative
Permit 399586 · COMPLETED
AMENDING BUILDING PERMIT#381019 DUE TO BRACED WALL FOR SFD AS PER SEALED SUBMITTED PLAN. CALL THE INSPECTOR TO SCHEDULE AN INSPECTION.
- PermitPlumbing
Permit 400539 · COMPLETED
2" DUAL SYSTEM, NEW LATERAL AND MAIN DRAIN(SFD)
- PermitSuppression
Permit 397622 · COMPLETED
INSTALLATION OF FIRE SUPPRESSION SYSTEM IN ACCORDANCE WITH NFPA 13D AND AS PER PLAN.
- PermitMechanical
Permit 397094 · COMPLETED
1 HVAC UNIT GOODMAN HOT AIR GAS HEAT 90,000 BTU AT 90% AIR 30,000 WITH DUCT WORK INCLUDED
- PermitElectrical
Permit 396096 · COMPLETED
INSTALL 200A 240V SINGLE PHASE METER SOCKER AND PANEL. WIRING 38 LIGHT FIX, 10 SWITCHES, 57 RECEPTS, 8 SMOKES AND 1 DRYER AS PER 2008 NEC(SFD)(SOUTH DIST)
- PermitPlumbing
Permit 396095 · COMPLETED
INSTALL 3 WC, 3 LAVS, 1 KS, 1 LAUNDRY SINK, 1 HWH(SFD)
- PermitNew construction
Permit 381019 · COMPLETED
NEW CONSTRUCTION OF A THREE (3) STORY ATTACHED STRUCTURE WITH BASEMENT, REAR BALCONY, ROOF DECK ACCESSED BY OPEN EXTERIOR STAIR AND FRONT BAY PER PLANS. BUILDING IS TO BE FULLY SPRINKLERED; SEPARATE PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION SYSTEMS.
- Recorded transfer$310K transfer
2012
- PermitZoning/use
Permit 372556 · COMPLETED
FOR THE ERECTION OF A 3 STORY SFD WITH CELLAR AND REAR THIRD FLOOR DECK WITH EXTERIOR STAIRS TO ROOF DECK AS PER PLANS.
- Land recordLand record
2011
- Land recordLand record
2004
What this record suggests
The City file documents 9 permits touching electrical work, plumbing, roof work. 8 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
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.
Stories
3
Interior
1,980 sqft
livable area
Lot
960 sqft
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
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 1205 S 18th 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 (2012) a 30-year mortgage ran about 3.66% — Freddie Mac's average that year.
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
1205 S 18th St sits on the 1200 block of S 18th St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1203 S 18th St · 1207 S 18th 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 11, 2026, 12:05 AM 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)