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Property profile & analytics
OFF-MARKET
Estimated value
$3,025,000
Office Spaces
621 Plainfield Rd, Willowbrook, IL 60527-5343
Entity Owned
26-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US28-2234742
Property profile
Verified
Property type
Office Spaces
Use group
OFFICE (GENERAL)
Year built
1978
Total area
25,600 SF
Lot
1.37 ac (59,677 SF)
Zoning code
C
APN
09-23-407-026
UPID
US28-2234742
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
-
Dr. Charles Maldonado Alternative Medicine Practice
-
Willowbrook Aesthetic Dentistry Dental Office
-
SpinelineRehab Avis PT Medical Clinic
-
TruCapital Partners Employment Agency
-
S&S Logistics, Inc. Freight Service Logistics Company
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$3.52M
Blend (final)
Blend
$3.03M
Owner & transaction history
Willowbrook Office Plaza LLC · 26 yrs held
Willowbrook Office Plaza LLC
since 1999
5 recorded transactions
Zoning & alternative use
C · Willowbrook, IL
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 Willowbrook submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Willowbrook 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
Blend value · Realmo final
$3.03M
Range $2.72M – $3.33M · ±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
$118 / 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
$32,725
Tax year 2023
Assessed value
$656,270
Assessed 2023
Previous assessed
$657,330
-0.2% YoY
Effective rate
4.99%
On assessed value
Assessed land
$175,290
Assessed improvement
$480,980
Land market value
$525,870
Improvement market value
$1,442,940
Total market value
$1,968,810
Applied tax rate
9,082.0000
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 Spaces
Use group
OFFICE (GENERAL)
Status
Off-Market
Year built
1978
Heating
NONE
Stories
4
Total area
25,600 SF
Lot
1.37 ac (59,677 SF)
Zoning code
C
APN
09-23-407-026
UPID
US28-2234742
Jurisdiction
DU PAGE
Metro division
CHICAGO-NAPERVILLE-JOLIET, IL METROPOLITAN DIVISION
Zoning & alternative use
C · Willowbrook, IL
Zoning C · permitted uses
C · Willowbrook, IL
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Willowbrook. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1978
Heating
NONE
Stories
4
Lot
1.37 ac
Current owner
From public records · entity-resolved
Willowbrook Office Plaza LLC
Entity
Mailing address
1808 JOHNS DR, GLENVIEW, IL 60025-1657
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
1999
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 12, 1999
—
Willowbrook Office Plaza LLC
American Nat'l Bk&tr Chgo Ttee
Grant Deed
related
—
Mar 29, 1999
$3,000,000
American Nat'l Bk&tr Chgo Ttee
Harris Bank Palatine Trustee
Grant Deed
related
$2,572,500 · Private Bank & Trust Co
—
—
Willowbrook Office Plaza LLC
—
Deed Of Trust
related
$1,508,550 · Privatebank & Trust
—
—
Willowbrook Office Plaza LLC
—
Deed Of Trust
related
$1,200,000 · Roberts Cap
—
—
Willow Office Plaza LLC
—
Loan Modification
related
$1,119,002 · Roberts Cap
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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