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Property profile & analytics
OFF-MARKET
Estimated value
$560,000
Office buildings
226 Washington St Naperville, IL 60540-4514
Entity Owned
15-yr Hold
Absentee Owner
Free & Clear
Property ID
US28-1932257
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1900
Construction
FRAME
Total area
4,278 SF
Lot
0.2 ac (8,712 SF)
Zoning code
R
APN
07-13-227-002
UPID
US28-1932257
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
-
Harry W. Yaseen Jewelers (Bike/Boat/Book/etc) Store
-
Eos Aesthetics & Apothecary (Bike/Boat/Book/etc) Store Cosmetic Store
-
Abbey Houde Alternative Medicine Practice
-
Brain & Body Boutique Alternative Medicine Practice
-
Neal Leatherman, LCSW - DLD Clinical Associates LLC Foster Care Service Social Service Agency
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$574k
Blend (final)
Blend
$560k
Owner & transaction history
Rock Rubicon LLC Gibson Series · 15 yrs held
Rock Rubicon LLC Gibson Series
since 2010
3 recorded transactions
Zoning & alternative use
R · Naperville, 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 Naperville submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Naperville 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
$925,000
Current use
Blend value · Realmo final
$560k
Range $504k – $616k · ±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
$131 / 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
$12,268
Tax year 2023
Assessed value
$189,070
Assessed 2023
Previous assessed
$152,550
+23.9% YoY
Effective rate
6.49%
On assessed value
Assessed land
$112,190
Assessed improvement
$76,880
Land market value
$336,570
Improvement market value
$230,640
Total market value
$567,210
Applied tax rate
7,025.0000
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
1900
Construction
FRAME
Heating
NONE
Bathrooms
2
Total area
4,278 SF
Lot
0.2 ac (8,712 SF)
Zoning code
R
APN
07-13-227-002
UPID
US28-1932257
Jurisdiction
DU PAGE
Metro division
CHICAGO-NAPERVILLE-JOLIET, IL METROPOLITAN DIVISION
Zoning & alternative use
R · Naperville, IL
Zoning R · permitted uses
R · Naperville, IL
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Naperville. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$925,000
OFFICE BUILDING Current
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
1900
Construction
FRAME
Heating
NONE
Bathrooms
2
Lot
0.2 ac
Current owner
From public records · entity-resolved
Rock Rubicon LLC Gibson Series
Entity
Free & Clear · 15 yrs held
Mailing address
114 E 6TH ST, HINSDALE, IL 60521-4650
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2010
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
Aug 18, 2010
$300,000
Rock Rubicon LLC Gibson Series
Washington 220 LLC
Warranty Deed
—
Sep 28, 2006
$860,000
Washington 220 LLC
Terry L Wilke
Deed
$630,000 · Midamerica Bank Fsb
Apr 29, 2005
—
Wilke Terry L Trust
Trust 5858
Quit Claim 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.
Try Rey
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