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Property profile & analytics
OFF-MARKET
Estimated value
$990,000
Office buildings
451 Main St, Waltham, MA 02452-6136
Entity Owned
5-yr Hold
~
Est. High Equity
Property ID
US38-1833178
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1910
Construction
FRAME
Total area
5,348 SF
Lot
0.37 ac (16,082 SF)
APN
WALT M:061 B:004 L:0005
UPID
US38-1833178
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
Current use
Occupant on record · Public records
-
M J Coleman Co Construction Company General Contractor
-
Lamacchia Realty - Waltham Real Estate Agency
-
Home Loans With Steve Loan Service Bank
-
Lamacchia Property Management Property Management Company
-
Coleman & Sons Real Estate Real Estate Agency
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$990k
Owner & transaction history
451 Main Street LLC · 5 yrs held
451 Main Street LLC
since 2020
Last sale
$18,502
4 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$1.6M
+14.1%
Restaurant
$1.6M
+14.0%
Auto repair, garage
$1.5M
+10.5%
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%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$1,360,000
Current use
COMMERCIAL (GENERAL)
$1,555,000
Change: +14% · Conversion: Easy
RESTAURANT
$1,555,000
Change: +14% · Conversion: Moderate
AUTO REPAIR, GARAGE
$1,505,000
Change: +10% · Conversion: Difficult
NEIGHBORHOOD: SHOPPING CENTER
$1,480,000
Change: +9% · Conversion: Difficult
RETAIL STORES
$1,440,000
Change: +6% · Conversion: Moderate
APARTMENT HOUSE (5+ UNITS)
$1,230,000
Change: -10% · Conversion: Easy
Blend value · Realmo final
$990k
Range $891k – $1.09M · ±10% · vs last sale $19k (Jul 9 2020)
Last sale anchor
$19k
Jul 9 2020
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
$185 / 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
$23,301
Tax year 2024
Assessed value
$1,125,100
Assessed 2024
Previous assessed
$1,125,100
+0.0% YoY
Effective rate
2.07%
On assessed value
Assessed land
$534,700
Assessed improvement
$590,400
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
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
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1910
Construction
FRAME
Heating
HOT WATER
Buildings
1
Stories
2
Units
5
Bathrooms
3
Total area
5,348 SF
Lot
0.37 ac (16,082 SF)
APN
WALT M:061 B:004 L:0005
UPID
US38-1833178
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
OFFICE BUILDING Current
Est. value
$1.4M
COMMERCIAL (GENERAL)
Est. value
$1.6M
RESTAURANT
Est. value
$1.6M
AUTO REPAIR, GARAGE
Est. value
$1.5M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$1.5M
RETAIL STORES
Est. value
$1.4M
APARTMENT HOUSE (5+ UNITS)
Est. value
$1.2M
OFFICE BUILDING Current
COMMERCIAL (GENERAL)
RESTAURANT
AUTO REPAIR, GARAGE
NEIGHBORHOOD: SHOPPING CENTER
RETAIL STORES
APARTMENT HOUSE (5+ UNITS)
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
1910
Construction
FRAME
Heating
HOT WATER
Stories
2
Buildings
1
Units
5
Bathrooms
3
Lot
0.37 ac
Current owner
From public records · entity-resolved
451 Main Street LLC
Entity
Mailing address
465 WAVERLEY OAKS RD STE #216, WALTHAM, MA 02452-8495
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
4 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 9, 2020
$1,150,000
451 Main Street LLC
Main Street 451
Quit Claim Deed
$862,000 · Rockland Tr
Oct 7, 2015
—
451 Main Street Realty Trust
451 Main St INC
Quit Claim Deed
related
—
Mar 9, 2011
$18,502
Waltham City Of
451 Main Street INC
Grant Deed
—
Jun 6, 1997
—
451 Main St INC
—
Deed Of Trust
related
$411,500 · Zwi Kohorn
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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