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Property profile & analytics
OFF-MARKET
Estimated value
$950,000
Showrooms
40 Grn St, Waltham, MA 02451-1619
Entity Owned
10-yr Hold
~
Est. High Equity
Property ID
US38-1741009
Property profile
Verified
Property type
Showrooms
Use group
SHOW ROOM, WAREHOUSE
Year built
1982
Construction
STEEL FRAME
Total area
4,000 SF
Lot
1.11 ac (48,251 SF)
APN
WALT M:056 B:003 L:0004
UPID
US38-1741009
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
$1.02M
Comparable Approach
Comparable
$614k
Blend (final)
Blend
$950k
Owner & transaction history
Green Street Plaza LLC · 10 yrs held
Green Street Plaza LLC
since 2016
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Office building
$1.3M
+9.8%
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 Waltham submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Waltham 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
Method
Estimation
Statistic approach
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
$1,100,000
6.5%
$1,015,000
7%
$945,000
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$1,165,000
Current use
OFFICE BUILDING
$1,275,000
Change: +10% · Conversion: Easy
AUTO REPAIR, GARAGE
$1,125,000
Change: -3% · Conversion: Difficult
NEIGHBORHOOD: SHOPPING CENTER
$1,110,000
Change: -5% · Conversion: Difficult
RETAIL STORES
$1,080,000
Change: -7% · Conversion: Easy
Blend value · Realmo final
$950k
Range $855k – $1.05M · ±10%
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$238 / SF
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
$45,924
Tax year 2024
Assessed value
$2,217,500
Assessed 2024
Previous assessed
$2,217,500
+0.0% YoY
Effective rate
2.07%
On assessed value
Assessed land
$1,944,100
Assessed improvement
$273,400
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
Showrooms
Use group
SHOW ROOM, WAREHOUSE
Status
Off-Market
Year built
1982
Construction
STEEL FRAME
Heating
FORCED AIR
Buildings
1
Stories
2
Units
1
Bathrooms
3
Total area
4,000 SF
Lot
1.11 ac (48,251 SF)
APN
WALT M:056 B:003 L:0004
UPID
US38-1741009
Jurisdiction
WALTHAM
Metro division
CAMBRIDGE-NEWTON-FRAMINGHAM, MA METROPOLITAN DIVISION
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$1.2M
OFFICE BUILDING
Est. value
$1.3M
AUTO REPAIR, GARAGE
Est. value
$1.1M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$1.1M
RETAIL STORES
Est. value
$1.1M
COMMERCIAL (GENERAL) Current
OFFICE BUILDING
AUTO REPAIR, GARAGE
NEIGHBORHOOD: SHOPPING CENTER
RETAIL STORES
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1982
Construction
STEEL FRAME
Heating
FORCED AIR
Stories
2
Buildings
1
Units
1
Bathrooms
3
Lot
1.11 ac
Current owner
From public records · entity-resolved
Green Street Plaza LLC
Entity
Mailing address
PO BOX 19479, JOHNSTON, RI 02919-0479
Ownership since
2016
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
7 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jun 1, 2016
$16,500,100
Green Street Plaza LLC
Bvg Trust
Quit Claim Deed
—
Oct 10, 2003
—
Bvg T
—
Grant Deed
related
$2,000,000 · Cm Corporate Ctr
Jan 31, 2002
—
T Bvg
—
Deed Of Trust
related
$2,000,000 · Century Bank & Trust Co
Apr 26, 2000
$2,600,000
T Stoneybrook
Ms Nt
Grant Deed
$2,000,000 · Compass Bank For Savings
Apr 26, 2000
—
T Stoneybrook
—
Deed Of Trust
related
$2,000,000 · Compass Bank For Savings
Nov 29, 1999
—
T Bvg
—
Deed Of Trust
related
$500,000 · Janet Cook Dunbar
Nov 9, 1988
—
Charles P Mantenuto
—
Deed Of Trust
related
$117,000 · University Bank & Trust Co
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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