Back to Search
Property profile & analytics
OFF-MARKET
Estimated value
$280,000
Medical Office Space
511 Thornhill Dr Ste G Carol Stream, IL 60188-2795
Entity Owned
18-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US28-2338847
Property profile
Verified
Property type
Medical Office Space
Use group
MEDICAL BUILDING
Year built
1982
Total area
1,247 SF
Lot
3.46 ac (150,718 SF)
Zoning code
C
APN
05-04-312-015
UPID
US28-2338847
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
-
John E Sullivan, DDS Dental Office
-
Access Dupage Charitable Organization Social Service Agency
-
Farmers Insurance - Ryan Bravi Insurance Agency
-
Lichon Francis S MD Physician
-
Muhammad M Sharif Md Physician
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$280k
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$280k
Owner & transaction history
Thornhill Investments LLC · 18 yrs held
Thornhill Investments LLC
since 2008
4 recorded transactions
Zoning & alternative use
C · Carol Stream, 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 Carol Stream submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Carol Stream 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
$280,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Blend value · Realmo final
$280k
Range $252k – $308k · ±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
$225 / 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
$3,112
Tax year 2023
Assessed value
$42,850
Assessed 2023
Previous assessed
$40,500
+5.8% YoY
Effective rate
7.26%
On assessed value
Assessed land
$10,630
Assessed improvement
$32,220
Land market value
$31,890
Improvement market value
$96,660
Total market value
$128,550
Applied tax rate
5,030.0000
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
Medical Office Space
Use group
MEDICAL BUILDING
Status
Off-Market
Year built
1982
Heating
NONE
Total area
1,247 SF
Lot
3.46 ac (150,718 SF)
Zoning code
C
APN
05-04-312-015
UPID
US28-2338847
Jurisdiction
DU PAGE
Metro division
CHICAGO-NAPERVILLE-JOLIET, IL METROPOLITAN DIVISION
Zoning & alternative use
C · Carol Stream, ILZoning C · permitted uses
C · Carol Stream, IL
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Building & site characteristics
From public records
Year built
1982
Heating
NONE
Lot
3.46 ac
Current owner
From public records · entity-resolved
Thornhill Investments LLC
Entity
Mailing address
555 S RANDALL RD STE #100, SAINT CHARLES, IL 60174-5918
Mailing matches property
Different — outreach signal
Owner-occupied
No
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
4 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 29, 2022
—
Thornhill Investments LLC
—
Deed
related
$2,800,000 · Itasca Bank & Trust Co
Jan 18, 2017
—
Thornhill Investments LLC
—
Deed
related
$1,859,694 · Wheaton Bk&tr
Jul 16, 2008
—
Thornhill Investments LLC
Central Dupage Health
Warranty Deed
$1,075,000 · Union National Bank
—
—
Thornhill Investments LLC
—
Deed Of Trust
related
$1,859,694 · Wheaton Bk&tr
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
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
You own 511 Thornhill Dr Ste G?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
