House report
503 S 12th St
3 bd3 ba4,360 sqftRM1built 2014
Owner-occupancy signal
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$1.4M 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$1.4M 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$1.4M 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$1.6M 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$1.9M 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$1.6M 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$1.6M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.9M 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 ↗
- Permit · 2012-12-04Zoning/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 · 2013-03-18New 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 · 2013-08-06SuppressionThis 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 · 2013-09-24MechanicalThis 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 · 2021-06-18Roof 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 ↗
- Permit · 2021-08-25Addition 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 ↗
- Certification · 2023-03-10Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2024-03-13Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2025-03-14Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
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.
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- PermitAddition and/or Alteration
- PermitRoof Covering Replacement
- PermitMechanical
- PermitSuppression
- PermitNew construction
- PermitZoning/use
Flags: material assessment exemption; legal basis and term unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$18,595/year estimated property tax
2026 taxable assessment $1,328,434 × 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 $1,889,000. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0531322152026 OPA taxes $1,328,434 of $1,824,800 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →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.”
The assessment exemption gap
OPA's 2026 roll shows a partial assessment exemption. The annual difference is measurable; the reason for it and what happens after a sale are not established here.
$1,328,434 taxable basis
$1,824,800 scenario basis
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($1,824,800 assessed − $496,366 exempt) × 1.3998% ≈ $18,595/year
Full-assessment scenario: $1,824,800 × 1.3998% ≈ $25,544/year
Do not treat the full-assessment scenario as inevitable or assume the current relief transfers. Obtain the approval history and verify the live Tax Center account before relying on either number.
The property, on paper
OPA physical field record.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
500 block of S 12th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 503 S 12th St · 501 S 12th St
L&I license dates · data through Jul 24, 2026
Business licenses at this address Latest pull
What L&I has registered at this OPA parcel, newest initial license date first.
No L&I business license is on record at this address in data through Jul 24, 2026.
A license is an L&I registration, not proof that a business is open, operating today, or located at this storefront. Dates are license dates. Events are deduped by parcel, business identity, and license type, so a renewal is not shown as another opening. Other permit and filing types remain in the full source ledger.
Open every source row 9 dated rows
- CertificationSprinkler Certification
Certification BC-2025-006849 · Certified
Expires 2026-03-14
- CertificationSprinkler Certification
Certification BC-2024-010854 · Certified
Expires 2025-03-13
- CertificationSprinkler Certification
Certification BC-2023-006004 · Certified
Expires 2024-03-10
- PermitAddition and/or Alteration
Permit RP-2021-011102 · Completed
FOR THE DEMO AND CONSTRUCTION / ALTERATIONS FOR THE FRONT AND REAR FACADE TO AN EXISTING ATTACHED STRUCTURE. FOR A SINGLE-FAMILY HOUSEHOLD LIVING. AS PER PLANS. ***************** "Separate Street closure permit required prior to start of work"***************************
- PermitRoof Covering Replacement
Permit GM-2021-005436 · Completed
EZ PERMIT RE-ROOFING- For the Installation of New Roof Coverings on Exiting Roofs as per attached standard. Deviations from these standards require submission of construction and site plans. Streets Department Permit 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.
- PermitMechanical
Permit 496482 · COMPLETED
INSTALL 2 DIRECT VENT FURNACES WITH ASSOCIATED DUCTWORK(SFD)
- PermitSuppression
Permit 468934 · COMPLETED
FOR THE INSTALLATION OF AN AUTOMATIC SPRINKLER SYSTEM W. TWO (2) INCH FIRE SERVICE LINE W. BACKFLOW PREVENTION (BFP) ASSEMBLY FOR A FOUR (4) STORY RESIDENTIAL BUILDING. AUTOMATIC SPRINKLER SYSTEM INSTALLATION IN ACCORDANCE WITH NFPA 13R.
- PermitNew construction
Permit 455784 · COMPLETED
ERECT A NEW 4 STORY SINGLE FAMILY DWELLING WITH CELLAR, 2 INTERIOR PARKING STALLS, REAR DECK AT 2ND FLOOR, ROOF DECK AT 4TH FLOOR FRONT AND REAR AND BALCONY AT 3RD FLOOR REAR AS PER PLANS.
- PermitZoning/use
Permit 438693 · COMPLETED
FOR THE ERECTION OF A FOUR(4) STORY ATTACHED STRUCTURE WITH CELLAR ( MAXIMUM HT 44'4") , FOR THE CREATION OF TWO(2) INTERIOR OFF-STREET PARKING SPACES, REAR DECK ON SECOND FLOOR, A ROOF DECK AT 4TH FLOOR FRONT AND REAR, BALCONY AT 3RD FLOOR REAR AND FOR THE ERECTION OF A SIX(6) FEET HIGH FENCE. SIZE AND LOCATION AS SHOWN AS SHOWN IN THE APPLICATION. FOR USE AS A SINGLE FAMILY DWELLING.
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 25, 2026, 8:25 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)
