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Property profile & analytics
OFF-MARKET
Estimated value
$585,000
Investment properties
428 4th St 34 Philadelphia, PA 19123-4105
Individually Owned
17-yr Hold
Free & Clear
Property ID
US73-1924819
Property profile
Verified
Property type
Investment properties
Use group
STORE/OFFICE (MIXED USE)
Year built
1983
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Total area
4,300 SF
Lot
0.24 ac (10,519 SF)
Zoning code
CMX3
APN
88-3-0086-00
UPID
US73-1924819
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$785k
Comparable Approach
Comparable
$407k
Blend (final)
Blend
$585k
Owner & transaction history
Mark H Rubin · 17 yrs held
Mark H Rubin
since 2008
1 recorded transaction
Zoning & alternative use
CMX3 · Philadelphia, PA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Philadelphia submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Philadelphia submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
$850,000
6.5%
$785,000
7%
$730,000
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$940,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$800,000
Change: -15% · Conversion: Difficult
Blend value · Realmo final
$585k
Range $527k – $644k · ±10%
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$136 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2023Property tax & assessments
Tax year 2023
Tax billed
$9,628
Tax year 2023
Assessed value
$687,800
Assessed 2023
Previous assessed
$687,800
+0.0% YoY
Effective rate
1.40%
On assessed value
Assessed land
$137,560
Assessed improvement
$550,240
Land market value
$137,560
Improvement market value
$550,240
Total market value
$687,800
Applied tax rate
5.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Investment properties
Use group
STORE/OFFICE (MIXED USE)
Status
Off-Market
Year built
1983
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
NONE
Stories
2
Total area
4,300 SF
Lot
0.24 ac (10,519 SF)
Zoning code
CMX3
APN
88-3-0086-00
UPID
US73-1924819
Jurisdiction
PHILADELPHIA
Metro division
PHILADELPHIA, PA METROPOLITAN DIVISION
Zoning & alternative use
CMX3 · Philadelphia, PA
Zoning CMX3 · permitted uses
CMX3 · Philadelphia, PA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Philadelphia. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$940,000
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$800,000
COMMERCIAL (GENERAL) Current
NEIGHBORHOOD: SHOPPING CENTER
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1983
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
NONE
Stories
2
Lot
0.24 ac
Current owner
From public records · entity-resolved
Mark H Rubin
Individual
Free & Clear · 17 yrs held
Mailing address
430 N 4TH ST, PHILADELPHIA, PA 19123-4105
Ownership since
2008
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
1 recorded event · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Sep 19, 2008
$400,000
Mark H Rubin
Rubin,seymore & Helen A
Grant Deed
related
—
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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