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Property profile & analytics
OFF-MARKET
Office buildings
523 Walnut St Allentown, PA 18101-2343
Entity Owned
2-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US73-2238464
Property profile
Verified
Property type
Office buildings
Use group
PROFESSIONAL BUILDING (MULTI-STORY)
Year built
1922
Construction
BRICK
Total area
3,039 SF
Lot
0.07 ac (3,038 SF)
Zoning code
B-2
APN
640720022872-1
UPID
US73-2238464
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
-
Kranson Marc Law Firm Financial Advisor
-
Home Settlement Services Title Company
-
Guardianship Support Agency Inc Social Service Agency Charitable Organization
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
by Request
Owner & transaction history
Rbm Family Properties LLC · 2 yrs held
Rbm Family Properties LLC
since 2024
Last sale
$300,000
3 recorded transactions
Zoning & alternative use
B-2 · Allentown, 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 Allentown submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Allentown 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
CAP Approach
Comparable Approach
Alternative Use
Get a detailed, property-specific estimation — fast and free
Price per SF
Sale + rent benchmarks
Subject property
—
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 2024Property tax & assessments
Tax year 2024
Tax billed
$7,014
Tax year 2024
Assessed value
$214,000
Assessed 2024
Previous assessed
$214,000
+0.0% YoY
Effective rate
3.28%
On assessed value
Assessed land
$21,300
Assessed improvement
$192,700
Land market value
$21,300
Improvement market value
$192,700
Total market value
$214,000
Applied tax rate
2.0000
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
PROFESSIONAL BUILDING (MULTI-STORY)
Status
Off-Market
Year built
1922
Construction
BRICK
Heating
BASEBOARD
Stories
3
Rooms
12
Bathrooms
3
Total area
3,039 SF
Lot
0.07 ac (3,038 SF)
Zoning code
B-2
APN
640720022872-1
UPID
US73-2238464
Jurisdiction
LEHIGH
Zoning & alternative use
B-2 · Allentown, PA
Zoning B-2 · permitted uses
B-2 · Allentown, PA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Allentown. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1922
Construction
BRICK
Heating
BASEBOARD
Stories
3
Rooms
12
Bathrooms
3
Lot
0.07 ac
Current owner
From public records · entity-resolved
Rbm Family Properties LLC
Entity
Mailing address
99 W MAPLE ST, MACUNGIE, PA 18062-1519
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2024
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 1, 2024
$300,000
Rbm Family Properties LLC
William J Young
Deed
$275,000 · William Young
Jul 10, 2019
—
William J Young
Young,william J & Gable
Quit Claim Deed
related
—
Apr 4, 2006
—
William J Young
Young,donald S & Debra R
Quit Claim 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.
Try Rey
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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