For Lease
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300 3Rd Ave, Waltham, MA 02451
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Property summary
AI-generated overview
The property is located in Waltham, Massachusetts, approximately 10 miles from Cambridge and Boston, positioned off Exit 27A on Route 128/I-95. It encompasses 36,911 square feet. The surrounding area includes a mixed-use commercial environment with proximity to multiple life sciences and research-oriented employers, including ThermoFisher, Sanofi, AstraZeneca, Shire, Decipher, GSK, Alkermes, Imogen, PerkinElmer, Vistara, and Exosome DX.
Property profile
Verified
Property type
Office Building
Year built
2021
Total area
124,950 SF
Lot
1.69 ac (73,616 SF)
APN
WALT M:039 B:003 L:0
UPID
US38-1685006
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
-
(Bike/Boat/Book/etc) Store Corporate Office
-
Business Management Consultant
-
Marketing & Advertising
-
Electric Vehicle Charging Station
-
Corporate Office
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 2020
Last sale
$5.1M
4 recorded transactions
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.
All 6 comparables with addresses
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
124,950 SF
Lot area
1.69 ac
Year built
2021
APN
WALT M:039 B:003 L:0
3
Income approach: direct capitalization
Partial preview
Not enough income data on file for a CAP-approach estimation.
4
Sales comparison
Partial preview
Sales approach indication
$18.55M
Weighted, 6 comps · high confidence
Evidence
6 found · 6 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
10.4 mi away · 146,388 SF
10.6 mi away · 120,000 SF
21.4 mi away · 90,480 SF
22.5 mi away · 150,183 SF
25.0 mi away · 105,166 SF
5
Data & methodology
Included free
Building area
County record
Property tax
Not available
Assessed value
Not available
Zoning designation
Not available
Operating expenses
Not available
Market rent
Not available
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
Comparable evidence · 6 sales
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$5.14M
Move the market yield to see immediate price impact.
Value / SF
$41
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%
$324k
$6.48M
$4.63M
$3.60M
$360k
$7.20M
$5.14M
$4.00M
$396k
$7.92M
$5.66M
$4.40M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
6 found
High confidence · county-verified
Closest comparable
$19.84M
8.0 mi · Feb 2026 · $179/SF
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 Lease
Year built
2021
Total area
124,950 SF
Lot
1.69 ac (73,616 SF)
APN
WALT M:039 B:003 L:0
UPID
US38-1685006
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Year built
2021
Lot
1.69 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
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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