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Property profile & analytics
OFF-MARKET
Estimated value
$1,955,000
Office buildings
8101 Castor Ave 7 Philadelphia, PA 19152-2717
Entity Owned
18-yr Hold
Free & Clear
Property ID
US73-2636440
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1975
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Total area
10,000 SF
Lot
0.34 ac (14,906 SF)
Zoning code
RSA3
APN
88-3-0879-00
UPID
US73-2636440
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
Current use
Occupant on record · Public records
-
American Paradigm Schools Charitable Organization Social Service Agency
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$2.54M
Blend (final)
Blend
$1.96M
Owner & transaction history
Stanwood Associates · 18 yrs held
Stanwood Associates
since 2008
2 recorded transactions
Zoning & alternative use
RSA3 · Philadelphia, PA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Zoning description
The Residential Single Family Attached districts are primarily intended to accommodate attached and semi detached houses on individual lots, but may be applied in areas characterized by a mix of housing types, including detached houses
Zone name
Residential Single Family Attached
General category
RESIDENTIAL
Zone area
6,038.31 ac
Source
Realmo
Top alternative use upside
Restaurant
$3.1M
+21.7%
Apartment house (5+ units)
$2.8M
+9.3%
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%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$2,545,000
Current use
RESTAURANT
$3,095,000
Change: +22% · Conversion: Moderate
APARTMENT HOUSE (5+ UNITS)
$2,780,000
Change: +9% · Conversion: Easy
MEDICAL BUILDING
$2,455,000
Change: -3% · Conversion: Easy
Blend value · Realmo final
$1.96M
Range $1.76M – $2.15M · ±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
$196 / 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
Previous assessed
$1,349,800
Total market value
$1,349,800
Applied tax rate
56.0000
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
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1975
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
NONE
Stories
2
Total area
10,000 SF
Lot
0.34 ac (14,906 SF)
Zoning code
RSA3
APN
88-3-0879-00
UPID
US73-2636440
Jurisdiction
PHILADELPHIA
Metro division
PHILADELPHIA, PA METROPOLITAN DIVISION
Zoning & alternative use
RSA3 · Philadelphia, PAZoning RSA3 · permitted uses
RSA3 · Philadelphia, PA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Zoning description
The Residential Single Family Attached districts are primarily intended to accommodate attached and semi detached houses on individual lots, but may be applied in areas characterized by a mix of housing types, including detached houses
Zone name
Residential Single Family Attached
General category
RESIDENTIAL
Zone area
6,038.31 ac
Source
Realmo
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$2.5M
RESTAURANT
Est. value
$3.1M
APARTMENT HOUSE (5+ UNITS)
Est. value
$2.8M
MEDICAL BUILDING
Est. value
$2.5M
OFFICE BUILDING Current
RESTAURANT
APARTMENT HOUSE (5+ UNITS)
MEDICAL BUILDING
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
1975
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
NONE
Stories
2
Lot
0.34 ac
Current owner
From public records · entity-resolved
Stanwood Associates
Entity
Free & Clear · 18 yrs held
Mailing address
113 S 21ST ST, PHILADELPHIA, PA 19103-4433
Mailing matches property
Yes
Owner-occupied
Yes
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
2 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 8, 2020
—
American Paradigm Schools
—
Deed
related
$460,000 · M & T Bank
Feb 7, 2008
$525,000
Stanwood Associates
Philadelphia Authority Of Indl D
Grant Deed
—
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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