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Property profile & analytics
OFF-MARKET
Estimated value
$9,420,000
Grocery and convenience stores
428 Riv St, Mattapan, MA 02126-2209
Entity Owned
23-yr Hold
~
Est. High Equity
Property ID
US38-0356834
Property profile
Verified
Property type
Grocery and convenience stores
Use group
GROCERY, SUPERMARKET
Year built
2003
Construction
BRICK
Total area
43,008 SF
Lot
2.32 ac (101,103 SF)
Zoning code
C
APN
MATT W:17 P:04050 S:000
UPID
US38-0356834
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
$10.68M
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$9.42M
Owner & transaction history
Trinity Neponsett LLC · 23 yrs held
Trinity Neponsett LLC
since 2002
4 recorded transactions
Zoning & alternative use
C · Mattapan, 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 Mattapan submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Mattapan 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%
$11,570,000
6.5%
$10,680,000
7%
$9,915,000
Blend value · Realmo final
$9.42M
Range $8.48M – $10.36M · ±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
$219 / 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
$252,809
Tax year 2024
Assessed value
$10,004,300
Assessed 2024
Previous assessed
$10,063,100
-0.6% YoY
Effective rate
2.53%
On assessed value
Assessed land
$3,341,300
Assessed improvement
$6,663,000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
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
Grocery and convenience stores
Use group
GROCERY, SUPERMARKET
Status
Off-Market
Year built
2003
Construction
BRICK
Heating
NONE
Buildings
1
Stories
1
Units
1
Total area
43,008 SF
Lot
2.32 ac (101,103 SF)
Zoning code
C
APN
MATT W:17 P:04050 S:000
UPID
US38-0356834
Jurisdiction
BOSTON
Metro division
BOSTON-QUINCY, MA METROPOLITAN DIVISION
Zoning & alternative use
C · Mattapan, MA
Zoning C · permitted uses
C · Mattapan, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Mattapan. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
2003
Construction
BRICK
Heating
NONE
Stories
1
Buildings
1
Units
1
Lot
2.32 ac
Current owner
From public records · entity-resolved
Trinity Neponsett LLC
Entity
Mailing address
75 FEDERAL ST, BOSTON, MA 02110-1913
Ownership since
2002
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
Nov 27, 2002
$2,000,000
Trinity Neponsett LLC
Star Markets Co INC
Grant Deed
$19,538,456 · Zuckerman Family Nomi
Dec 4, 1997
—
High Voltage Engineer
—
Deed Of Trust
related
$2,100,000 · Star Markets Co INC
May 10, 1996
—
High Voltage Engineer
—
Deed Of Trust
related
$50,000,000 · Worth Funding INC
Aug 25, 1988
—
High Voltage Engr Corp
—
Deed Of Trust
related
$85,000,000 · Zions First National Bank
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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