2026 assessment
$630K
OPA value, not a listing price
House report
1210 Mount Vernon St
5 bd2,482 sqftRSA5built 2007
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19123 area
Northern Liberties · Callowhill
1200 block of Mount Vernon 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$371K 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$371K 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$371K 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$454K 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$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 · 2021$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 · 2022$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 · 2023$603K 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$603K 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$630K 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$630K 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$616K 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 · 2007Deed / sale $350KA 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 · 2019Deed / sale $600KA 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 · 2025Deed / sale $750KA 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 · 2007-03-08Zoning/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 · 2007-06-13New 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 · 2007-07-25New 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 · 2007-08-27PlumbingThis 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 · 2007-10-25ElectricalThis 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 · 2008-08-01MechanicalThis 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 · 2009-08-21ZoningThis 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 · 2009-08-21Major 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 · 2023-12-01Change of 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 ↗
- License · 2025-08-30YIFENG GUO: Rental landlord or residential registration initially issuedA 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 ↗
- License · 2025-03-17Yifeng Guo: Limited Lodging Operator landlord or residential registration initially issuedA 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 ↗
- License · 2023-12-05lixia lu: Limited Lodging Operator landlord or residential registration initially issuedA 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 ↗
- License · 2024-12-04lixia lu: Limited Lodging Operator landlord or residential registration marked revokedA 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 ↗
- License · 2021-03-04Red sun investment LLC: Rental landlord or residential registration initially issuedA 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 ↗
- License · 2025-03-03Red sun investment LLC: Rental landlord or residential registration marked closedA 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 ↗
- Appeal · 2009-05-05Zoning board appealA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
Property assessmentBlock median & rangeZIP 19123 (Northern Liberties · Callowhill) medianAssessmentDeed / saleAppealPermitLicense
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 record19 events · exact dates, newest first
- LicenseYIFENG GUO: Rental landlord or residential registration initially issued
- LicenseYifeng Guo: Limited Lodging Operator landlord or residential registration initially issued
- LicenseRed sun investment LLC: Rental landlord or residential registration marked closed
- Deed / saleDeed / sale $750K
- Licenselixia lu: Limited Lodging Operator landlord or residential registration marked revoked
- Licenselixia lu: Limited Lodging Operator landlord or residential registration initially issued
- PermitChange of Use
- LicenseRed sun investment LLC: Rental landlord or residential registration initially issued
- Deed / saleDeed / sale $600K
- PermitZoning
- PermitMajor alteration
- AppealZoning board appeal
- PermitMechanical
- PermitElectrical
- PermitPlumbing
- PermitNew construction
- PermitNew construction
- PermitZoning/use
- Deed / saleDeed / sale $350K
Flags: active rental license · 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$8,819/year estimated property tax
2026 taxable assessment $630,000 × 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 $615,700. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1412668002026 taxable assessment equals the full assessed value.
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 property, on paper
OPA physical field record.
Bedrooms
5
Interior
2,482 sqft
livable area
Lot
1,360 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
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
Zoning appeals
1
CLOSED · Granted with conditions · 2009
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1200 block of Mount Vernon St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1208 Mount Vernon St · 1212 Mount Vernon St
L&I license dates · data through Jul 23, 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 23, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
YIFENG GUOActive
Rental · Initial issue date Aug 30, 2025 · Filed expiration Aug 29, 2026
Yifeng GuoActive
Limited Lodging Operator · Initial issue date Mar 17, 2025 · Filed expiration Mar 16, 2027
lixia luRevoked
Limited Lodging Operator · Initial issue date Dec 5, 2023 · Terminal license date Dec 4, 2024
Red sun investment LLCClosed
Rental · Initial issue date Mar 4, 2021 · Terminal license date Mar 3, 2025
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 19 dated rows
- License issue eventYIFENG GUO: Rental landlord or residential registration initially issued
License 0987640 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventYifeng Guo: Limited Lodging Operator landlord or residential registration initially issued
License 0973920 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventRed sun investment LLC: Rental landlord or residential registration marked closed
License 862845 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$750K transfer
2025
- License terminal eventlixia lu: Limited Lodging Operator landlord or residential registration marked revoked
License 939350 · Revoked
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventlixia lu: Limited Lodging Operator landlord or residential registration initially issued
License 939350 · Revoked
License event. Registration does not prove present operation or storefront occupancy.
- PermitChange of Use
Permit ZP-2023-013112 · Issued
Limited Lodging
- License issue eventRed sun investment LLC: Rental landlord or residential registration initially issued
License 862845 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$600K transfer
2019
- PermitZoning
Permit 189116 · COMPLETED
BUILD NEW CMU BLOCK WALL IN REAR WITH OVERHEAD DOOR, AS PER PLANS.ZBA APPROVAL CASE # 8261
- PermitMajor alteration
Permit 189117 · COMPLETED
BUILD NEW CMU BLOCK WALL IN REAR WITH OVERHEAD DOOR, AS PER PLANS.MUST PROVIDE REFLECTIVE MIRROR.PARKING
- AppealZoning board appeal
Appeal 8261 · CLOSED · Granted with conditions
Related permit 189116 · PERMIT FOR THE ERECTION OF A 6' FENCE WALL AROUND THE PERIMETER OF THE REAR YARD WITH A REAR OVERHEAD DOOR TO CREATE A PRIVATE OPEN AIR PARKING SPACE.
- PermitMechanical
Permit 168166 · COMPLETED
INSTALL 2 TRANE HVAC UNITS (SFD)
- PermitElectrical
Permit 109690 · COMPLETED
WIRE NEW HOUSE AS PER NEC 2005
- PermitPlumbing
Permit 99116 · COMPLETED
YARD DRAIN, 1 BATH TUB, 4 LAV'S, 2 SHOWERS, 3 WATER CLOSETS, 1 KITCHEN SINK, 1 LATERAL
- PermitNew construction
Permit 88551 · COMPLETED
ERECT 3 STY. SINGLE FAMILY DWELLING
- PermitNew construction
Permit 81513 · COMPLETED
FOUNDATION ONLY AS PER PLANS. SEE 1212 MOUNT VERNON STREET, AP#81514 FOR PLANS.
- PermitZoning/use
Permit 57839 · COMPLETED
ERECT NEW 3 STORY SINGLE FAMILY DWELLING.
- Recorded transfer$350K transfer
2007
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 23, 2026, 8:43 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)