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Property profile & analytics
OFF-MARKET
Estimated value
$520,000
Office buildings
1 Transam Plz Dr Ste 480 Oakbrook Terrace, IL 60181-4297
Entity Owned
20-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US28-1347340
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1985
Total area
3,415 SF
Lot
6.48 ac (282,269 SF)
Zoning code
C
APN
06-21-405-011
UPID
US28-1347340
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
$315k
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$516k
Blend (final)
Blend
$520k
Owner & transaction history
Detroit Interstate LLC · 20 yrs held
Detroit Interstate LLC
since 2006
4 recorded transactions
Zoning & alternative use
C · Oakbrook Terrace, IL
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Medical building
$770,000
+38.8%
Commercial (general)
$700,000
+26.1%
Retail stores
$640,000
+15.5%
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 Oakbrook Terrace submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Oakbrook Terrace 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
$315,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$555,000
Current use
MEDICAL BUILDING
$770,000
Change: +39% · Conversion: Easy
COMMERCIAL (GENERAL)
$700,000
Change: +26% · Conversion: Easy
RETAIL STORES
$640,000
Change: +15% · Conversion: Moderate
Blend value · Realmo final
$520k
Range $468k – $572k · ±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
$152 / 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
$8,437
Tax year 2023
Assessed value
$106,840
Assessed 2023
Previous assessed
$107,420
-0.5% YoY
Effective rate
7.90%
On assessed value
Assessed land
$10,680
Assessed improvement
$96,160
Land market value
$32,040
Improvement market value
$288,480
Total market value
$320,520
Applied tax rate
6,156.0000
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
1985
Heating
NONE
Total area
3,415 SF
Lot
6.48 ac (282,269 SF)
Zoning code
C
APN
06-21-405-011
UPID
US28-1347340
Jurisdiction
DU PAGE
Metro division
CHICAGO-NAPERVILLE-JOLIET, IL METROPOLITAN DIVISION
Zoning & alternative use
C · Oakbrook Terrace, IL
Zoning C · permitted uses
C · Oakbrook Terrace, IL
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Oakbrook Terrace. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$555,000
MEDICAL BUILDING
Est. value
$770,000
COMMERCIAL (GENERAL)
Est. value
$700,000
RETAIL STORES
Est. value
$640,000
OFFICE BUILDING Current
MEDICAL BUILDING
COMMERCIAL (GENERAL)
RETAIL STORES
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
1985
Heating
NONE
Lot
6.48 ac
Current owner
From public records · entity-resolved
Detroit Interstate LLC
Entity
Mailing address
1105 MIDWEST CLB PKWY, OAK BROOK, IL 60523-2535
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2006
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
4 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
May 8, 2006
$1,324,000
Detroit Interstate LLC
1 Transam Plaza Development Corp
Warranty Deed
$1,398,525 · Harris NA
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Detroit Interstate LLC
—
Deed Of Trust
related
—
—
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Detroit Interstate LLC
—
Deed Of Trust
related
—
—
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Detroit Interstate LLC
—
Deed Of Trust
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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