Public Records
Edition
Philadelphia4400 block of Main StJuly 9, 2026

House report

4457-59 Main St

5,130 sqft · CMX2.5 · built 1900

Owner-occupied · assessed $1.1M. On the 4400 block of Main St.

Street view of 4457-59 Main St
From the street — imagery © Google
From above — imagery © Esri, Maxar
The story of this houseAI · written from the public record

Reading this house's deeds, permits and assessments…

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

Built 1900: 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.

If you own it

$1,399/yr may be unclaimed

This home reads owner-occupied but shows no Homestead Exemption, which removes $100,000 from the taxable assessment (worth up to $1,399/yr). Applying through the City is free and takes minutes.

Derived from this house's public records and the city's rules as of 2026 (abatement ordinance, Homestead, rental licensing, lead certification, L&I process, excavation protections). 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 analyst below to dig into any number.

Assessed value
$1.1M
built 1900
Price / sq ft
$205
block $194 · above block
Appreciation
+123%
+8%/yr, city 6.5%
In 5 years (~2031)
~$1.1M
+8%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$15K
1.4% effective
Gross yield
Times sold
0

Value vs. the block, over time — sales, permits & L&I events marked on the line

$0$1.0M$2.0MBefore this chart — 2007: L&I violation 2012: Use 2012: Demolition 2012: Major alteration 2012: Plumbing 2013: Use2016: Electrical2020: Addition and/or Alteration 2020: Change of Use 2020: Appeal granted2025: L&I violation$1.1M201620222027
This houseBlock median & rangeL&I violationZoningPermit
The paper trail

Owner pulled a change of use permit in 2020.

  1. 2007 L&I violationL&I
  2. 2012 UsePermitDemolitionPermitMajor alterationPermitPlumbingPermit
  3. 2013 UsePermit
  4. 2016 ElectricalPermit
  5. 2020 Addition and/or AlterationPermitChange of UsePermitAppeal grantedZoning
  6. 2025 L&I violationL&I

Flags: 1 zoning/board appeal on record. Informational only — not investment advice or a consumer report (FCRA).

The house, on paper

The city assessor's field record — the physical spec sheet behind the assessed number.

Interior
5,130 sqft
livable area
Lot
2,191 sqft
Exterior condition
Average
city code 4
Interior condition
Average
city code 4
Quality grade
C
assessor's grade
Zoning
CMX2.5
city zoning code
Zoning appeals
1
granted 2020

OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.

Run the numbers

What owning 4457-59 Main St takes, at your price and your rate. Taxes are this house's actual bill from the city record; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.

$1.1M
20%
6.875%
$8K/mo

When this house last sold (2019) a 30-year mortgage ran about 3.94% — Freddie Mac's average that year.

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 from this parcel's record.

Next door: 4453-55 Main St  ·  4447 Main St

Where this comes from

City datasets are fetched live from OpenDataPhilly (phl.carto.com) and cached briefly. AI-written passages are generated from these records only and rejected if they state a number the record doesn't hold.

Official city record ↗  ·  L&I history ↗  ·  See the whole block  ·  Download this record (JSON)