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Property profile & analytics
OFF-MARKET
Estimated value
$590,000
Medical Office Space
405 Main St Naperville, IL 60540-5322
Trust Owned
13-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US28-1017895
Property profile
Verified
Property type
Medical Office Space
Use group
MEDICAL BUILDING
Year built
1993
Construction
FRAME
Total area
3,463 SF
Lot
0.27 ac (11,761 SF)
Zoning code
R
APN
07-13-442-017
UPID
US28-1017895
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
-
Valerie Lola Valerie Dental Office
-
Dr. Jerome Bergamini Dental Office
-
Gregory N. Stevens, DMD Dental Office
-
Dr. Jay Bergamini & Associates Dental Office
-
Jerome A Bergamini Dental Office
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$730k
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$590k
Owner & transaction history
Bergamini,jerome A JR Trust · 13 yrs held
Bergamini,jerome A JR Trust
since 2013
4 recorded transactions
Zoning & alternative use
R · Naperville, IL
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$800,000
+2.7%
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%
$790,000
6.5%
$730,000
7%
$675,000
Alternative Use
Use
Estimation
MEDICAL BUILDING
$780,000
Current use
COMMERCIAL (GENERAL)
$800,000
Change: +3% · Conversion: Easy
OFFICE BUILDING
$750,000
Change: -4% · Conversion: Easy
Blend value · Realmo final
$590k
Range $531k – $649k · ±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
$170 / 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
$23,362
Tax year 2023
Assessed value
$294,320
Assessed 2023
Previous assessed
$306,120
-3.9% YoY
Effective rate
7.94%
On assessed value
Assessed land
$118,670
Assessed improvement
$175,650
Land market value
$356,010
Improvement market value
$526,950
Total market value
$882,960
Applied tax rate
7,143.0000
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
1993
Construction
FRAME
Heating
CENTRAL
Cooling
CENTRAL
Stories
1
Bathrooms
2
Total area
3,463 SF
Lot
0.27 ac (11,761 SF)
Zoning code
R
APN
07-13-442-017
UPID
US28-1017895
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
MEDICAL BUILDING Current
Est. value
$780,000
COMMERCIAL (GENERAL)
Est. value
$800,000
OFFICE BUILDING
Est. value
$750,000
MEDICAL BUILDING Current
COMMERCIAL (GENERAL)
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
1993
Construction
FRAME
Heating
CENTRAL
Cooling
Yes
Stories
1
Bathrooms
2
Lot
0.27 ac
Current owner
From public records · entity-resolved
Bergamini,jerome A JR Trust
Trust
Mailing address
1528 ALAN RD, NAPERVILLE, IL 60564-9666
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2013
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 16, 2013
—
Bergamini,jerome A JR Trust
Bergamini Leslie M Trust
Quit Claim Deed
related
—
Mar 1, 2010
—
Bergamini Leslie M Trust
Bergamini,jay & Leslie
Quit Claim Deed
related
—
—
—
Jay Bergamini
—
Deed Of Trust
related
$175,000 · Merchants & Manufacturers Bank
—
—
Jay Bergamini
—
Deed Of Trust
related
$221,463 · Manufacturers Bank
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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