2026 assessment
$299K
OPA value, not a listing price
House report
171 Gay St
Research this property with Analyst →3 bd1 ba3 stories1,050 sqftRSA5built 1900
Property at a glanceHouse
Owner-occupancy signal
ZIP 19127 area
Manayunk
100 block of Gay St
Assessment and City record timeline
Published City assessments for this house against its block and ZIP. Dated City filings are marked on the same line. Select one to read it. Assessments are tax-roll values, not sale prices or appraisals.
- OPA assessment · 2016$209K 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$209K 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$209K 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$218K 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$222K 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$222K 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$222K 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$251K 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$251K 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$299K 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$299K 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$333K 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 · 2010Deed / sale $115KA 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 ↗
- Deed / sale · 2013Deed / sale $200KA 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 · 2010-07-14ElectricalThis 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 · 2010-10-06Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2011-08-23AlterationThis 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 · 2011-08-04PERMB- CONST RETAINING WALLA 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 ↗
- L&I violation · 2011-08-04PERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)Building permit required for interior alteration or repairHow L&I violations and orders work ↗
- Inspection · 2011-08-04BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2011-08-26BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
Property assessmentBlock median & rangeZIP 19127 (Manayunk) medianAssessmentDeed / saleL&I violationPermitInspection
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 record9 events · exact dates, newest first
- Deed / saleDeed / sale $200K
- InspectionBP_BLDG
- PermitAlteration
- L&I violationPERMB- CONST RETAINING WALL
- L&I violationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
- InspectionBP_BLDG
- PermitMajor alteration
- PermitElectrical
- Deed / saleDeed / sale $115K
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$2,790/year estimated property tax
2026 taxable assessment $199,300 × 1.3998%. This is an estimate, not a bill or account balance. The City maintains payments, credits, interest, and the current amount due.
OPA has published a 2027 assessment of $333,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 2111435002026 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.”
Where the record looks off
Conflicts in City paperwork. Flags on the data, not the property.
"Built 1900" is usually a placeholder
Philadelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
The property, on paper
OPA physical field record.
Bedrooms
3
Bathrooms
1
Stories
3
Interior
1,050 sqft
livable area
Lot
1,354 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
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
100 block of Gay St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 169 Gay St · 173 Gay St
L&I licenses checked through Jul 30, 2026
No business or residential license records
No business license or residential registration matched this OPA parcel in the latest City data.
Open every source row 9 dated rows
- Recorded transfer$200K transfer
2013
- InvestigationBP_BLDG
Case 290531 · PASSED
The cited inspection visit was marked passed.
- PermitAlteration
Permit 359587 · COMPLETED
BUILDING A SMALL RETENTION WALL (H=2'1" TO H=3'1") IN THE BACK GARDEN TO CREATE AN UTILITY PATIO.
- ViolationPERMB- CONST RETAINING WALL
Case 290531 · Violation 2168231 · Code A-301.1/25 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
Case 290531 · Violation 2168232 · Code A-301.1/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 290531 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitMajor alteration
Permit 290409 · COMPLETED
FOR INTERIOR & EXTERIOR ALTERATIONS TO RENOVATE THE EXISTING FLOOR PLAN. THE AFFECTED AREAS INCLUDE THE BATHROOM,KITCHEN AND BEDROOM AREAS. THE FLOOR LAYOUT SHALL REFLECT THE APPROVED PLAN. THE FRONT FACADE WILL BE COVERED WITH A PORTLAND THREE (3) COAT STUCCO COVERING. THE STUCCO SHALL BE APPLIED OF A GALVANIZED WIRE MESH PROPERLY AFFIXED TO THE EXISTING MASONRY WALL. A WALL INSPECTION SHALL TAKE PLACE PRIOR TO THE APPLICATION. THE COMMONWEALTH OF PENNSYLVANIA REQUIRES A HOME REPAIR LICENSE FOR THOSE OTHER THAN THE PRINCIPLA OWNER RENOVATING THEIR PRIMARY RESIDENCE.
- PermitElectrical
Permit 290801 · COMPLETED
INSTALL 100A SERVICE, GROUNDING, 10 RECEPTACLE CIRCUITS & 15 RECEPTACLES.
- Recorded transfer$115K transfer
2010
Unavailable when this report assembled: certifications. Unavailable does not mean no record.
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 31, 2026, 2:24 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: unavailable. “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)