Entity Owned 
For Sale
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Contact for pricing
321 Main St, Acton, MA 01720
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Property profile
Verified
Property type
Showrooms
Use group
SHOW ROOM, WAREHOUSE
Year built
1958
Construction
FRAME
Total area
26,033 SF
Lot
1.4 ac (60,984 SF)
APN
ACTO M:00F3 B:0082 L:0000
UPID
US38-0781198
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
-
Physician
-
Physician
-
Pediatrician Medical Clinic
-
Physician
-
Physician
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$3.74M
Blend (final)
Blend
$3.02M
Owner & transaction history
since 2025
5 recorded transactions
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.
17% off on annual
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 12 comparables with addresses
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
$3.02M
Value range
$2.72M – $3.32M
±10% around blend
Estimated value / SF
$116 / SF
Confidence
High
12 county-verified comps
Property data
88
Market benchmarks
33
Comparable evidence
100
Income certainty
100
$2.72M
blend $3.02M
$3.32M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
26,033 SF
Lot area
1.4 ac
Year built
1958
Stories
2
APN
ACTO M:00F3 B:0082 L:0000
Assessed value
$2,668,000
Annual tax
$44,476
3
Income approach: direct capitalization
Partial preview
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
$44,476
Selected cap rate
4
Sales comparison
Partial preview
Sales approach indication
$7.75M
Weighted, 12 comps · high confidence
Evidence
12 found · 6 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
13.1 mi away · 21,994 SF
15.2 mi away · 30,576 SF
16.4 mi away · 22,832 SF
17.6 mi away · 28,956 SF
17.7 mi away · 32,981 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$3.02M
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
County 830 sales
$258
-55%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $116/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
Not available
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 · 12 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$13.17M
Move the market yield to see immediate price impact.
Value / SF
$506
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%
$830k
$16.60M
$11.85M
$9.22M
$922k
$18.44M
$13.17M
$10.24M
$1.01M
$20.28M
$14.49M
$11.27M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
12 found
High confidence · county-verified
Closest comparable
$1.20M
10.8 mi · Dec 2025 · $56/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$44,476
Tax year 2024
Assessed value
$2,668,000
Assessed 2024
Previous assessed
$2,668,000
+0.0% YoY
Effective rate
1.67%
On assessed value
Assessed land
$567,100
Assessed improvement
$2,100,900
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 Sale
Year built
1958
Construction
FRAME
Heating
FORCED AIR
Cooling
YES
Buildings
1
Stories
2
Units
1
Bathrooms
4
Total area
26,033 SF
Lot
1.4 ac (60,984 SF)
APN
ACTO M:00F3 B:0082 L:0000
UPID
US38-0781198
Jurisdiction
ACTON
Metro division
CAMBRIDGE-NEWTON-FRAMINGHAM, MA METROPOLITAN DIVISION
Zoning & alternative use
Zoning · permitted uses
No zoning code is on file for this parcel. Zoning coverage grows with every catalog release.
Building & site characteristics
From public records
Year built
1958
Construction
FRAME
Heating
FORCED AIR
Cooling
Yes
Stories
2
Buildings
1
Units
1
Bathrooms
4
Lot
1.4 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
No zoning code is on file for this parcel. Zoning coverage grows with every catalog release — check back, or open Location Intelligence for use analysis of this corner.
Ownership Intelligence
Find the owner behind the property.
Unlock the evidence behind ownership: portfolio, transactions, debt and signals that help you decide who to contact next.
What opens after registration
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.
Registration is required before any owner information is shown.
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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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