Individually Owned 
For Lease
$19 SF/Yr
42 Tremont St,Unit 11, Duxbury, MA 02332
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Property summary
AI-generated overview
Located at 42 Tremont Street, the Park at Island Creek building provides office suite space. Suite 3 is on the second floor and includes a front reception desk, a waiting room, four private offices, a conference room, and one bathroom. Suite sizes within the building are designed to range from approximately 900 to 3,000 square feet. The property is professionally maintained and is positioned on Route 3A just off Route 3, providing convenient access to surrounding amenities.
Property profile
Verified
Property type
Showrooms
Use group
SHOW ROOM, WAREHOUSE
Year built
1973
Total area
7,796 SF
Lot
1.2 ac (52,272 SF)
Zoning code
NB
APN
DUXB M:062 B:751 L:010
UPID
US38-1454362
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Medical Clinic
-
Alternative Medicine Practice
-
Dental Office
-
Physician
-
Medical Clinic
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$1.16M
Comparable Approach
Comparable
$1.23M
Blend (final)
Blend
$340k
Owner & transaction history
since 1987
5 recorded transactions
Zoning & alternative use
NB · Duxbury, MA
Top alternative use upside
Retail stores
$1.6M
+13.9%
Auto repair, garage
$1.6M
+13.6%
Office building
$1.6M
+10.9%
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
Value estimation
Instant AI valuation built from comps, income signals, and proprietary benchmarks. A defensible range, not a single guess.
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Unlock the complete Valuation workflow
Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
Full NOI build-up · 6 steps
All 3 comparables with addresses
4 alternative uses screened
Sensitivity value band
Source audit · 6 inputs
PDF export
Analytics Standard · 5 reports
from $99/month
from $99/month
Summary
1
Valuation conclusion
Included free
Estimated market value
$340k
Value range
$306k – $374k
±10% around blend
Estimated value / SF
$44 / SF
Confidence
Low
3 county-verified comps
Property data
100
Market benchmarks
33
Comparable evidence
30
Income certainty
100
$306k
blend $340k
$374k
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
7,796 SF
Lot area
1.2 ac
Year built
1973
Stories
2
APN
DUXB M:062 B:751 L:010
Zoning
NB
Assessed value
$1,826,400
Annual tax
$18,374
3
Income approach: direct capitalization
Partial preview
Income approach indication
$1.16M
Direct capitalization · @ 6.5% CAP return
@ 6% CAP return
$1.26M
@ 6.5% CAP return
$1.16M
@ 7% CAP return
$1.08M
Estimated Stabilized NOI, derived from market rent, vacancy and expense benchmarks. Actual property income not reported.
Estimated market rent / SF
Potential gross income
Vacancy allowance
Effective gross income
Benchmark operating expenses
Stabilized NOI
Property tax
$18,374
Selected cap rate
4
Sales comparison
Partial preview
Sales approach indication
$1.03M
Weighted, 3 comps · low confidence
Evidence
3 found · 3 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
12.8 mi away · 7,752 SF
15.3 mi away · 5,880 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$340k
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
County 537 sales
$182
-76%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $44/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Alternative use screening
Partial preview
Top alternative use
Retail Stores
Gross theoretical uplift
+14%
vs current-use indication
Auto Repair, Garage
Office Building
Commercial (general) · current use
Values shown before conversion costs, entitlement costs, capital expenditures and stabilization risk.
8
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
County record
Operating expenses
Modeled
Market rent
Market benchmark
Not analyzed due to unavailable source data: actual rent roll, tenant leases, physical condition and capital
requirements are outside a desktop analysis.
Cost Approach excluded: income and sales evidence cover the value conclusion.
Automated valuation analysis, not a licensed appraisal. Figures are derived from public
records and proprietary models. Desktop analysis: no physical inspection, tenant leases or reported
property income. Verify with a licensed appraiser before transacting.
Cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
17% off on annual
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
Comparable evidence · 3 sales
NOI build-up · 9 steps
Market rates by use type
PDF export
Analytics Standard · 5 reports
from $99/month
from $99/month
Overview
No cap rate is computable for this property yet: no recorded sale, income signal or market-rate row for its use type.
Price sensitivity
The rate is the decision lever; valuation is the consequence.
Test a cap rate
Implied value$568k
Move the market yield to see immediate price impact.
Value / SF
$73
Vs. selected
Base
Derivation
NOI ÷ cap
Arithmetic over the derived NOI * — not market scenario modeling.
NOI × cap matrix
Preview
Preview of 9 modeled outcomes.
NOI
5.00%7.00%9.00%
$36k
$715k
$511k
$397k
$40k
$795k
$568k
$442k
$44k
$874k
$624k
$486k
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
3 found
Low confidence · county-verified
Closest comparable
$800k
3.6 mi · Aug 2025 · $129/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$18,374
Tax year 2024
Assessed value
$1,826,400
Assessed 2024
Previous assessed
$1,826,400
+0.0% YoY
Effective rate
1.01%
On assessed value
Assessed land
$544,800
Assessed improvement
$1,281,600
Automated cap rate analysis. Based on public records, market benchmarks and proprietary
models. Verify with a licensed professional before transacting.
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Showrooms
Use group
SHOW ROOM, WAREHOUSE
Status
For Lease
Year built
1973
Heating
FORCED AIR
Cooling
YES
Buildings
1
Stories
2
Units
10
Total area
7,796 SF
Lot
1.2 ac (52,272 SF)
Zoning code
NB
APN
DUXB M:062 B:751 L:010
UPID
US38-1454362
Jurisdiction
DUXBURY
Metro division
BOSTON-QUINCY, MA METROPOLITAN DIVISION
Zoning & alternative use
NB · Duxbury, MAZoning NB · permitted uses
NB · Duxbury, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Alternative use value scenarios
Repositioning upside vs current use
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Building & site characteristics
From public records
Year built
1973
Heating
FORCED AIR
Cooling
Yes
Stories
2
Buildings
1
Units
10
Lot
1.2 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
NB
Jurisdiction
Duxbury, MA
Recorded code
NB
Ownership Intelligence
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Ownership report
Owner identityResolved entity and name variants
Portfolio holdingsLinked properties and estimated value
Deal signalsSell-side activity worth following
Debt & historyRecorded loans and transaction history
Private report access
See the ownership record for this address.
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Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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