For Sale
1 / 3
Contact for pricing
397 Williams St, Marlborough, MA 01752
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Property profile
Verified
Property type
Office Building
Year built
1986
Total area
129,440 SF
Lot
18.82 ac (819,799 SF)
APN
MARL M:102 B:004 L:0
UPID
US38-0869924
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
by Request
Owner & transaction history
since 2023
Last sale
$9.0M
4 recorded transactions
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
Source audit · 10 inputs
PDF export
Analytics Standard · 5 reports
from $99/month
from $99/month
Summary
1
Valuation conclusion
Included free
Realmo’s models returned no estimation for this property yet.
2
Subject property
Included free
GBA
129,440 SF
Lot area
18.82 ac
Year built
1986
APN
MARL M:102 B:004 L:0
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
Selected cap rate
4
Sales comparison
Partial preview
Too few qualifying comparables for a sales-approach estimation.
5
Data & methodology
Included free
Building area
County record
Property tax
Not available
Assessed value
Not available
Zoning designation
Not available
Operating expenses
Modeled
Market rent
Market benchmark
Actual rent roll
Not available
Tenant leases
Not available
Physical condition
Not inspected
Conversion costs
Not available
Not analyzed due to unavailable source data: tenant leases, physical condition and capital
requirements were not available for this desktop analysis. Cost Approach excluded due to
availability of income evidence.
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
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$9.21M
Move the market yield to see immediate price impact.
Value / SF
$71
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%
$580k
$11.60M
$8.29M
$6.45M
$645k
$12.89M
$9.21M
$7.16M
$709k
$14.18M
$10.13M
$7.88M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
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
Office Building
Status
For Sale
Year built
1986
Total area
129,440 SF
Lot
18.82 ac (819,799 SF)
APN
MARL M:102 B:004 L:0
UPID
US38-0869924
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Year built
1986
Lot
18.82 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.
One complete report on every paid plan · 5 · 30 · 100 reports per month.
Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
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?”
Full reports are paid
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Pick a plan to open full owner contacts, all 4 valuations with methodology, the refine flow, comparable adjustments, the foot-traffic deep dive and PDF / CSV export. Cancel anytime.
