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Property profile & analytics
OFF-MARKET
Life science properties
25 Hartwell Ave, Lexington, MA 02421-3102
Entity Owned
3-yr Hold
~
Est. High Equity
Property ID
US38-1434479
Property profile
Verified
Property type
Life science properties
Use group
R&D FACILITY, LABS, PHARMA
Year built
1966
Construction
FRAME
Total area
33,339 SF
Lot
4.18 ac (182,080 SF)
Zoning code
CM
APN
LEXI M:0084 L:00080B
UPID
US38-1434479
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
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
25 Hartwell Owner LLC · 3 yrs held
25 Hartwell Owner LLC
since 2022
Last sale
$18.0M
6 recorded transactions
Zoning & alternative use
CM · Lexington, MA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
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 Lexington submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Lexington 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
CAP Approach
Comparable Approach
Alternative Use
Get a detailed, property-specific estimation — fast and free
Price per SF
Sale + rent benchmarks
Subject property
—
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 2024Property tax & assessments
Tax year 2024
Tax billed
$136,657
Tax year 2024
Assessed value
$5,647,000
Assessed 2024
Previous assessed
$5,181,000
+9.0% YoY
Effective rate
2.42%
On assessed value
Assessed land
$3,190,000
Assessed improvement
$2,457,000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
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
Life science properties
Use group
R&D FACILITY, LABS, PHARMA
Status
Off-Market
Year built
1966
Construction
FRAME
Heating
FORCED AIR
Cooling
YES
Buildings
1
Stories
1
Units
1
Rooms
1
Total area
33,339 SF
Lot
4.18 ac (182,080 SF)
Zoning code
CM
APN
LEXI M:0084 L:00080B
UPID
US38-1434479
Jurisdiction
LEXINGTON
Metro division
CAMBRIDGE-NEWTON-FRAMINGHAM, MA METROPOLITAN DIVISION
Zoning & alternative use
CM · Lexington, MA
Zoning CM · permitted uses
CM · Lexington, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Lexington. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1966
Construction
FRAME
Heating
FORCED AIR
Cooling
Yes
Stories
1
Buildings
1
Units
1
Rooms
1
Lot
4.18 ac
Current owner
From public records · entity-resolved
25 Hartwell Owner LLC
Entity
Mailing address
1 FEDERAL ST FL, BOSTON, MA 02110-2013
Ownership since
2022
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
6 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Oct 11, 2022
$17,970,599
25 Hartwell Owner LLC
Duffy Hartwell LLC
Quit Claim Arm's Length For Ne States
$25,746,523 · Harborone Bank
Jul 7, 2011
—
Duffy Hartwell LLC
—
Deed Of Trust
related
$10,800,000 · Worth Funding INC
Jan 27, 1998
—
Duffy Hartwell LLC
—
Deed Of Trust
related
$3,075,000 · Zuckerman Family Nomi
Sep 19, 1997
$1,125,000
Hartwell Grp LLC
Duffy Hartwell LLC
Grant Deed
related
—
Aug 8, 1997
—
Duffy Rlty LLC
—
Deed Of Trust
related
$1,125,000 · Zuckerman Family Nomi
Jun 6, 1997
$1,125,000
Duffy Rlty LLC
Emerson & Cuming INC
Grant Deed
—
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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