2026 taxable assessment $206,400 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $648,800; it is not the 2026 billed-year value.
House report
710 S Warnock St
3 stories · 1,920 sqft · RSA5 · built 1960
Owner-occupied · assessed $614K (2026) · 2027 OPA assessment $649K · sold 1×. On the 700 block of S Warnock St.
Property summary
Assessment$613,6002026 OPA assessment · 2027: $648,800
Last sale$225KRecorded 2000 · later nominal deed
Est. tax bill$2,889/year2026 taxable assessment · full-value scenario $8,589/year · basis and term unverified
Tax delinquencyNo 2022 matchNot proof account is current
Permits10Every fetched City permit
Violations0 openNo historical match in fetched records
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport AI · cited public records
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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 0232599002026 OPA taxes $206,400 of $613,600 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →Applying the same rate to the billed-year full assessment. OPA's numeric split does not say when or whether the current treatment changes.
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.”
What stands out
From the public recordImproved
Why it mattersBought for $225K in 2000. Owner pulled a addition and/or alteration permit in 2025.
View supporting records →City Property History
Fetched L&I and zoning records
Every row successfully fetched for this report is counted below. Dataset availability and matching can differ from the City's interactive file; use the official link for current detail.
- Recorded owner
- David Yang & Daniela Pierson
- Tax mailing address
- 710 S WARNOCK ST, PHILADELPHIA PA, 19147
- L&I district
- CENTRAL EAST
- Building ID (BIN)
- —
- OPA account
- 023259900
Permits10Every dated permit
Violation cases0No match
Investigations0No match
Building certifications0No match
Business licenses0No match
Appeals1CLOSED · Granted with conditions
PermitsPermit number, issued date, work and City status10
ZoningPermit 540213
Nov 10, 2014 COMPLETED Completed Nov 10, 2014
CONSTRUCT AN ADDITION AT 1ST. FLOOR REAR AS PER PLANS STAMPED BY ZBA AS PART OF AN EXISTING ATTACHED SINGLE FAMILY DWELLING, SIZE AND LOCATION AS SHOWN IN APPLICATION
AdditionPermit 581439
May 20, 2015 COMPLETED Completed Sep 17, 2018
FOR PART. DEMO. OF REAR PORTION OF & FOR THE ERECTION OF ONE (1) STORY ADDITION OF LIGHT-FRAME WOOD & STRUCTURAL STEEL CONSTRUCTION W. CAST-IN-PLACE CONC. FOUND. & GREEN ROOF AT REAR OF EXIST. THREE (3) STORY ABV. GRADE PLANE, W. BASEMENT, RESIDENTIAL BLDNG & FOR INT ALTS TO INCLUDE NEW STAIR CASE & PARTITION WALLS FOR VESTIBULE; BUILDING IS NOT FULLY SPRINKLERED. SITE TO BE EXCAVATED AT AREAS ADJACENT TO EXIST. STRUCTURE(S) NOT WITHIN THE SCOPE OF THIS PERMIT. PERMIT HOLDER TO NOTIFY OWNER(S) OF ADJOINING PROPERTY(IES) NO LESS THAN TEN (10) DAYS PRIOR TO START OF PERMITTED WORK. SEPARATE PERMIT REQUIRED FOR MECHANICAL, ELECTRICAL, & PLUMBING WORK.
PlumbingPermit 633505
Aug 20, 2015 COMPLETED Completed Sep 17, 2018
RE-ROUGH PLUMBING FIXTURES 7 TOTAL.NEW SOIL STACK,HOUSE DRAIN,AREA DRAIN (SFD)THE INSTALLATION WILL COMPLY WITH THE PHILADELPHIA PLUMBING CODE 2004
MechanicalPermit 660152
Dec 24, 2015 COMPLETED Completed Sep 17, 2018
INSTALL CONDENSOR WITH DUCTWORK (SFD)
ElectricalPermit 666540
Jan 29, 2016 COMPLETED Completed Aug 18, 2016
COMPLETE REWIRE OF 1ST FLOOR OF SFD AS PER NEC 2008 SOUTH DISTRICT
Addition and/or AlterationPermit RP-2024-008415
Dec 9, 2024 Issued
ALTERATIONS TO THE THIRD FLOOR OF AN EXISTING STRUCTURE USED A S A SINGLE-FAMILY DWELLING AS PER APPLICATION/PLAN. **AMENDMENT 4/11/2025** Existing support beam replaced with new LVL beam. Scope of work within proposed 3rd floor area.
AlterationsPermit PP-2025-001731
Feb 11, 2025 Issued
Installation of 1 laundry, 2 bathroom
Addition and/or AlterationPermit EP-2025-002590
Mar 31, 2025 Completed Completed Aug 4, 2025
Electrical work for two bathrooms, laundry area, sitting room & master bedroom. Lights, switches and receptacles. 100amp sub panel on 3rd fl.
Addition and/or AlterationsPermit MP-2025-002050
Apr 7, 2025 Issued
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. Additional permits may be required for Electric and Plumbing. To modification of ductwork on 2nd fl bath and 3rd floor master bedroom and bath
Addition and/or AlterationPermit RP-2025-003278
Apr 9, 2025 Issued
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. Separate permits are required for plumbing and electrical work and the installation of heating/cooling appliances. 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; INCLUDING UNDERPINNING, EXCAVATION, AND REMOVAL OF FOUNDATION SLAB. NO WORK MAY BE PERFORMED IN THE BASEMENT OR CELLAR. This permit ONLY APPLIES to the renovation of the second floor bathroom as it exceeded the amendment request of RP-2024-008415:
Violation cases0 individual violation records; resolved history remains visible0
No violation cases matched this parcel in the fetched City dataset.
InvestigationsEvery inspector visit, including CLOSED outcomes0
No investigations matched this parcel in the fetched City dataset.
Building certificationsInspection result and filed expiration date by L&I building ID0
No building certifications matched this parcel in the fetched City dataset.
Business licensesHistorical and active licenses are both retained0
No business licenses matched this parcel in the fetched City dataset.
AppealsApplication status and decision are separate City fields1
Zoning board appealAppeal 23091
Sep 24, 2014 CLOSED Granted with conditions Related permit 540213
PERMIT FOR THE ERECTION OF AN ADDITION AT THE FIRST FLOOR REAR OF AN EXISTING ATTACHED STRUCTURAL, FOR CONTINUED USE AS A SINGLE FAMILY HOUSEHOLD LIVING. (SIZE AND LOCATION TO BE AS SHOWN ON APPLICATION)
City of Philadelphia OPA, L&I and Zoning Board records, shown as filed. A CLOSED investigation is an outcome label, not a missing visit; an appeal's application status and decision may differ.
Legal due diligence
What this record proves—and what it does not.
These checks are triggered by this property’s actual City rows. They identify the controlling document to verify; they do not declare a use legal, a building safe, or title clear.
2 resolve before relying
2 verify
Resolve before relyingZoning approval is not the occupancy fileAppeal #23091: CLOSED · Granted with conditions; related permit 540213.
Why it mattersPhiladelphia says a zoning approval or Property Sales Certification can identify a use without proving that it was established under the Building Code. A change of use, unit count, exits, or fire rating can require a Building Permit and Certificate of Occupancy.
Verify nextVerify the lawful use, unit count, associated construction permits, and Certificate of Occupancy with L&I.
Open the controlling City guidance ↗Resolve before relyingA permit row needs file-level verification4 permits not marked completed: RP-2024-008415 (Issued), PP-2025-001731 (Issued), MP-2025-002050 (Issued), RP-2025-003278 (Issued).
Why it mattersIssued work is not the same as approved final work. L&I uses final inspections and required certifications to close construction permits; expired, withdrawn, and completed are different City statuses.
Verify nextOpen the permit file and confirm final inspections, holds, and any resulting occupancy certificate.
Open the controlling City guidance ↗VerifyThe latest nominal transfer is not a market sale—or a title opinionThe latest deed in the assembled record moved for nominal consideration and appears related-party/family-held.
Why it mattersA $1 or nominal deed can be a valid family, estate, or entity transfer. It does not establish a sale price, clear title, or by itself prove a tangled title.
Verify nextRead the recorded deed and have the title search confirm every grantor, grantee, estate/probate step, lien, and authority to sell.
Open the controlling City guidance ↗VerifyA reduced taxable assessment is not a verified abatementOPA’s numeric assessment fields show a reduced taxable assessment; BlockReport has no official program determination for this parcel.
Why it mattersThe numeric treatment can reflect an improvement abatement or another exemption. It does not identify the ordinance, approval, start or end date, or continuation requirements after a transfer. Once OPA verifies a specific active abatement, many common programs attach the benefit to the property for the remaining term rather than ending automatically at sale, but some require a new-owner filing and continued qualifying use or tax compliance.
Verify nextObtain the OPA exemption/abatement determination and history, then underwrite the buyer’s bill from the verified program terms.
Open the controlling City guidance ↗Closing file: checks no public-record summary can replace5 documents/searches to assign before settlement
Property Sales Certification
The seller must obtain Philadelphia’s certificate showing the base zoning, last use in the zoning record, and open violations. The City warns that it does not prove Building Code occupancy or show zoning overlays.
Next: Obtain the fresh certificate and compare it with the CO, permits, and Atlas overlays.
Official guidance ↗Date-effective City Property Payoff
The Tax Center Property Payoff covers Real Estate Tax, Commercial Trash, and L&I abatement-work invoices. Philadelphia says it does not include business-tax debts or liens, water and sewer charges, or fines for code violations.
Next: Request the City statement effective through settlement; read every period and invoice.
Official guidance ↗Professional title and water-lien searches
OPA ownership, deed summaries, and a zero tax balance are not clear title. Mortgages, judgments, municipal claims, water liens, easements, heirs, and other encumbrances require separate searches.
Next: Use a Pennsylvania lawyer/title company and obtain owner’s title insurance; order the separate water search/payoff.
Official guidance ↗Separate water-lien guidance ↗Seller-specific tax relief is not the buyer’s bill
LOOP and low-income or senior Real Estate Tax freezes depend on the qualifying owner and continued program eligibility; a buyer cannot assume the seller’s capped or frozen bill continues. A separately verified property abatement often remains with the property for its remaining term, but program-specific new-owner filing, use, and tax-compliance conditions still must be confirmed—not inferred from the reduced assessment alone.
Next: Have Revenue or OPA identify every current benefit, model the buyer’s bill without seller-specific relief, and confirm any verified abatement in writing.
Official guidance ↗Separate water-lien guidance ↗Seller disclosure and independent inspections
For a covered Pennsylvania residential transfer, obtain the statutory seller disclosure. It reports the seller’s knowledge; it is not a warranty, title search, code review, or substitute for inspections. Because OPA dates this building before 1978, separately obtain the required federal/City lead disclosures and any test results.
Next: Have the agreement and disclosure reviewed for this transaction’s coverage and exceptions.
Official guidance ↗Informational only—not a legal opinion, title report, code inspection, tax payoff, or substitute for a Pennsylvania lawyer, title company, inspector, or tax professional.
Records to verify together
Rule-based groupings across this property's dated public records. Each flag shows the records that belong in the same verification step and where the inference stops.
Recent transition activity
The property has an unusually active paper trail worth monitoring for the next permit, inspection, deed, or listing.
Evidence: 5 permit events since 2023
Limit: Record activity alone does not establish that a sale or redevelopment is planned.
Transparent record rules, not a score or forecast. Each flag is a prompt to verify the cited records, not a prediction or allegation.
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
Verify the current tax bill and exemption
The 2026 taxable assessment implies about $2,889/yr, while applying the same rate to the full assessment would imply about $8,589/yr — $5,700/yr more. OPA's assessment split does not establish the exemption program, expiration, or buyer eligibility. Verify the basis and live bill with OPA and Revenue.
Built 1960: 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 and shared-name parties. 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
Verify which assessment relief applies
OPA shows a material assessment exemption, but this record does not identify its legal basis or transfer treatment. Ask OPA for the approval history; if the current treatment ends, an eligible owner-occupant may need to apply separately for Homestead relief.
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.
The investment read
How this house has moved and where it's pointed: the city's assessed value (not a listing price) over 12 years, charted against its block; appreciation is that history's pace, and the 5-year figure simply extends it. Yield estimates rent-vs-price from area rents. Ask the record to dig into any number.
Assessed value
$613,600
2026 billed-year assessment · 2027: $648,800 · built 1960
Price / sq ft
$338
block $344 · in line w/ block
Appreciation
+63%
+5%/yr, city 6.5%
In 5 years (~2031)
~$650K
+5%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax bill / yr
$2,889
0.45% effective, reduced taxable assessment
Jun 2022 tax snapshot
No match
not proof the account is current
Gross yield
3.6%
≈$2K/mo rent
Times sold
1
latest deed has shared-name parties
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangePermit
The paper trail
ImprovedBought for $225K in 2000. Owner pulled a addition and/or alteration permit in 2025.
- 2000 $225KSold
- 2014 Appeal granted with conditionsZoningZoningPermit
- 2015 AdditionPermitPlumbingPermitMechanicalPermit
- 2016 ElectricalPermit
- 2024 Addition and/or AlterationPermit
- 2025 AlterationsPermitAddition and/or AlterationPermitAddition and/or AlterationsPermitAddition and/or AlterationPermit
Flags: material assessment exemption — legal basis and term unverified · 1 zoning/board appeal on record · latest deed has shared-name parties — relationship unverified. Informational only — not investment advice or a consumer report (FCRA).
The assessment exemption gap
OPA's 2026 taxable assessment implies about $2,889/year. Applying the same 1.3998% rate to the full assessed value would imply ~$8,589/year — $5,700/year more. That is a scenario, not a forecast: the assessment split alone does not identify the exemption program, approval date, expiration, transfer treatment, or live Tax Center balance.
2026: ($613,600 assessed − $407,213 exempt) × 1.3998% ≈ $2,889/yr
full-assessment scenario: $613,600 × 1.3998% ≈ $8,589/yr
The OPA amount does not prove a ten-year abatement or any other specific program. Obtain the approval history and verify the current Tax Center account; a buyer should not assume the seller's relief transfers or restarts.
The property, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Stories
3
Interior
1,920 sqft
livable area
Lot
864 sqft
Basement
Basement
city code I
Heat
Undetermined
city code H
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
B-
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
Zoning appeals
1
CLOSED · Granted with conditions · 2014
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 710 S Warnock 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
Cash to close
—
down + ~4% costs
Cash flow
—
rent − all costs · /mo
Cap rate
—
NOI ÷ price
Cash-on-cash
—
year-1 return on cash in
Estimates for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance; taxes use this parcel's taxable assessment with an optional full-assessment stress test, not a live Tax Center balance.
Block context
710 S Warnock St sits on the 700 block of S Warnock St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 708 S Warnock St · 712 S Warnock 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, 7:48 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)