2026 taxable assessment $264,988 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $504,100; it is not the 2026 billed-year value.
Multi-family report
4 bd · 3 ba · 3 stories · 1,992 sqft · RM1 · built 1920
Owner-occupancy signal · assessed $499K (2026) · 2027 OPA assessment $504K · sold 3×. On the 1700 block of Mifflin St.

Open the research chat with this property already in context. Curated questions are free.
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
Property tax
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.
2026 taxable assessment $264,988 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $504,100; it is not the 2026 billed-year value.
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 4810540002026 OPA taxes $264,988 of $499,300 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 →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.”
$519K transfer in 2021; major alteration permit in 2018; $519K transfer in 2021 (+25850% between recorded amounts).
View supporting records →The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
The 2026 taxable assessment implies about $3,709/yr, while applying the same rate to the full assessment would imply about $6,989/yr — $3,280/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.
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.
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.
Every fetched annual City assessment for this building, 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.
Assessment vs. the block and ZIP · every dated City record marked on the line
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.
$519K transfer in 2021; major alteration permit in 2018; $519K transfer in 2021 (+25850% between recorded amounts).
Records behind the chart
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
License 931011 · Inactive
Joseph Switzer · Expires 2024-08-15 · Inactive 2024-10-14
2021
Case 539365 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
Permit 1025835 · COMPLETED
INSTALL NEW FIRE ALARM SYSTEM AS PER ENGINEERING DRAWING, NEC 2008 AND 2007 NFPA 72 (SOUTH DIST)
Permit 954050 · COMPLETED
LEVEL 2 ALTERATION TO COMPLIMENT PREVIOUS PERMITS 869782 & 895218 TO RENOVATE KITCHENS & BATHROOM CABINETS AND FINISHES IMPROVE CODE COMPLIANT FIRE RATED ASSEMBLEES BY LAMINATING 5/8 FR DRYWALL TO 1ST AND 2ND FLOOR CEILINGS AND STAIRWELL WALLS REPLACE MISC WINDOWS WITH SAME SIZE AS PER EZ STANDARD LIMITED COMMERCIAL ALTERATIONS & REPAIRS INFO-
Permit 954055 · COMPLETED
INSTALL 3 NEW HVAC SYSTEMS EACH SYSTEM COMPLETELY WITHIN THE UNIT AS FOLLOWS: UNIT 1 (BSTM & 1ST FLOOR) 80%-60K &1.5T AC / UNIT 2 REAR MINISPLIT UNIT 3 (2ND FRT AND 3RD FLOOR FRONT 90%- 70K & 1.5T AC OUTDOOR UNITS IN REAR YARD. INSTALLED AS PER MANUFACTURER'S INSTRUCTIONS, FUEL GAS CODE AND EZ STANDARDS CONTRACTOR RESPONISBLE FOR CONDITION AND CAPACITY OF MASONRY CHIMNEY CELLER HAS ALL 3 EXT'G HOT WATER HEATERS
Case 671595 · PASSED
The cited inspection visit was marked passed.
Permit 940658 · COMPLETED
FOR THE INSTALLATION OF A TWO (2) INCH FIRE SERVICE LINE WITH A TWO (2) INCH BACKFLOW PREVENTER AND AUTOMATIC FIRE SUPPRESSION SYSTEM AS PER NFPA 13 AND NFPA 13R. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS/HYDRAULIC CALCULATIONS.
Case 671595 · Violation 4934280 · Code A-104.1/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 671595 · Violation 4934283 · Code A-901.13/3 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 671595 · Violation 4934282 · Code A-504.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 671595 · Violation 4934281 · Code A-301.1/54 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 671595 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Permit 932343 · COMPLETED
INSTALL 200AMP SERVICE WITH 4-GANG METER SOCKET, HOUSE PANEL 60AMP AND 3-100AMP SUB PANEL AND PUT HALLWAY LIGHTS ON HOUSE PANEL AS PER NEC 2008 SOUTH DISTRICT
Permit 895218 · COMPLETED
FOR THE AMENDMENT OF PREVIOUSLY APPROVED BUILDING PERMIT #869782 TO INCLUDE THE INTERIOR RENOVATION OF THE EXISTING RESIDENTIAL UNITS. NO CHANGE TO BUILDING HEIGHT OR AREA. ORIGINAL PERMIT APPROVED FOR LEVEL II ALTERATIONS TO INCLUDE INTERIOR FIT OUT OF A PREVIOUSLY VACANT UNIT INTO A RESIDENTIAL UNIT WITHIN AN EXISTING STRUCTURE, CHANGING THE OCCUPANCY FROM AN R-3 TO AN R-2 OCCUPANCY. BUILDING TO BE FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.
Permit 869782 · COMPLETED
FOR LEVEL II ALTERATIONS TO INCLUDE INTERIOR FIT OUT OF A PREVIOUSLY VACANT UNIT INTO A RESIDENTIAL UNIT WITHIN AN EXISTING STRUCTURE, CHANGING THE OCCUPANCY FROM AN R-3 TO AN R-2 OCCUPANCY. BUILDING TO BE FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.
Permit 807744 · COMPLETED
APPLICATION FOR LEGALIZATION OF AN EXISTING (3) THREE FAMILY DWELLING AT THE PROPERTY. THE PROPERTY IS LOCATED IN THE RM-1 ZONING DISTRICT AND IS APPROVED FOR A TWO-FAMILY DWELLING PER ZONING USE PERMIT NO. 160599.
Case 539365 · FAILED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Appeal 31770 · OPEN · Granted
Related permit 807744 · PERMIT FOR AN INCREASE FROM TWO (2) FAMILY HOUSEHOLD LIVING TO THREE (3) FAMILY HOUSEHOLD LIVING (MULTI-FAMILY) IN AN EXISTING STRUCTURE
Case 539365 · CLOSED
City marked the record closed; open the case for the closing reason.
Case 539365 · Violation 4562526 · Code A-301.1/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 539365 · Violation 4562527 · Code A-301.1/7 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 539365 · Violation 4562529 · Code A-901.13/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 539365 · Violation 4562528 · Code A-504.1/3 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
License 604462 · Inactive
GUY Y ALBALANCY · Expires 2016-02-29 · Inactive 2016-04-29
License 572460 · Inactive
D & M FLORIDA INVESTMENT LLC · Expires 2013-02-28
What this record suggests
The City file documents 8 permits touching kitchen work, bathroom work, drywall / interior finishing, electrical work. 8 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: material assessment exemption — legal basis and term unverified · 1 zoning/board appeal on record. Informational only — not investment advice or a consumer report (FCRA).
OPA's 2026 taxable assessment implies about $3,709/year. Applying the same 1.3998% rate to the full assessed value would imply ~$6,989/year — $3,280/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: ($499,300 assessed − $234,334 exempt) × 1.3998% ≈ $3,709/yr
full-assessment scenario: $499,300 × 1.3998% ≈ $6,989/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 city assessor's field record — the physical spec sheet behind the assessed number.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
What owning 1727 Mifflin 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 (2021) a 30-year mortgage ran about 2.96% — Freddie Mac's average that year.
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 with an optional full-assessment stress test, 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.
1727 Mifflin St sits on the 1700 block of Mifflin St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1725 Mifflin St · 1729 Mifflin St
This report was assembled Jul 11, 2026, 1:30 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)