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Property profile & analytics
OFF-MARKET
Estimated value
$640,000
Investment properties
129 Washington St 31 Naperville, IL 60540-5332
Entity Owned
19-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US28-1929821
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1885
Construction
BRICK
Total area
3,642 SF
Lot
0.04 ac (1,742 SF)
Zoning code
B
APN
07-13-423-021
UPID
US28-1929821
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
-
Sefcheck Mark M DDS Dental Office
-
Engleman Marcia DDS Dental Office
-
Optimum Orthodontics Dental Office
-
Oral and Facial Surgery of Naperville - Dental Implants Dental Office
-
John Hur DDS, MD Dental Office
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$705k
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$640k
Owner & transaction history
Mcl Partners LLC · 19 yrs held
Mcl Partners LLC
since 2007
3 recorded transactions
Zoning & alternative use
B · 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%
$760,000
6.5%
$705,000
7%
$655,000
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$845,000
Current use
MEDICAL BUILDING
$820,000
Change: -3% · Conversion: Easy
OFFICE BUILDING
$790,000
Change: -7% · Conversion: Easy
Blend value · Realmo final
$640k
Range $576k – $704k · ±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
$176 / 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
$30,015
Tax year 2023
Assessed value
$346,690
Assessed 2023
Previous assessed
$292,200
+18.6% YoY
Effective rate
8.66%
On assessed value
Assessed land
$53,030
Assessed improvement
$293,660
Land market value
$159,090
Improvement market value
$880,980
Total market value
$1,040,070
Applied tax rate
7,214.0000
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
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Status
Off-Market
Year built
1885
Construction
BRICK
Heating
CENTRAL
Cooling
CENTRAL
Total area
3,642 SF
Lot
0.04 ac (1,742 SF)
Zoning code
B
APN
07-13-423-021
UPID
US28-1929821
Jurisdiction
DU PAGE
Metro division
CHICAGO-NAPERVILLE-JOLIET, IL METROPOLITAN DIVISION
Zoning & alternative use
B · Naperville, IL
Zoning B · permitted uses
B · 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
COMMERCIAL (GENERAL) Current
Est. value
$845,000
MEDICAL BUILDING
Est. value
$820,000
OFFICE BUILDING
Est. value
$790,000
COMMERCIAL (GENERAL) Current
MEDICAL BUILDING
OFFICE BUILDING
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
1885
Construction
BRICK
Heating
CENTRAL
Cooling
Yes
Lot
0.04 ac
Current owner
From public records · entity-resolved
Mcl Partners LLC
Entity
Mailing address
1537 PNE LK DR, NAPERVILLE, IL 60564-9791
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2007
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
Jun 8, 2007
$1,975,000
Mcl Partners LLC
129-131 S Washington LLC
Warranty Deed
$1,428,000 · Mb Financial Bank NA
Nov 12, 2003
$890,000
129 131 Washington LLC
Naper LP
Grant Deed
$712,000 · First National Bank Brookfield
—
—
129 131 Washington LLC
—
Deed Of Trust
related
$148,000 · First National Bank Brookfield
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?”
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