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Property profile & analytics
OFF-MARKET
Office buildings
20 Sea St Marshfield, MA 02050-4468
Entity Owned
13-yr Hold
~
Est. High Equity
Property ID
US38-0369324
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1956
Construction
CONCRETE
Total area
714 SF
Lot
0.26 ac (11,523 SF)
Zoning code
B-4
APN
MARS M:0I16 B:0012 L:014A
UPID
US38-0369324
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
-
Robert P Mc Donough Insurance Insurance 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
by Request
Owner & transaction history
Gna Realty LLC · 13 yrs held
Gna Realty LLC
since 2012
6 recorded transactions
Zoning & alternative use
B-4 · Marshfield, MA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Zoning description
ached to this bylaw which is declared to be a part of this bylaw. In addition, uses are subject to Articles XI , XIII and XV where appropriate. [1] Uses Residential Business Industrial Overlay R-1 R-2 R-3 RB B-1 B-2 B-3 B-4 OP I-1 A PMUD WRPD BRVO KEY: S = Special Permit Required P = Use Permitted - = Prohibited Use Principal Uses Residential 1. One-family d…
Zone name
Business Waterfront
General category
COMMERCIAL
Zone area
32.93 ac
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 Marshfield submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Marshfield 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
$4,095
Tax year 2024
Assessed value
$394,100
Assessed 2024
Previous assessed
$394,100
+0.0% YoY
Effective rate
1.04%
On assessed value
Assessed land
$292,100
Assessed improvement
$102,000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
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
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1956
Construction
CONCRETE
Heating
FORCED AIR
Buildings
1
Stories
1
Units
1
Bathrooms
4
Total area
714 SF
Lot
0.26 ac (11,523 SF)
Zoning code
B-4
APN
MARS M:0I16 B:0012 L:014A
UPID
US38-0369324
Jurisdiction
MARSHFIELD
Metro division
BOSTON-QUINCY, MA METROPOLITAN DIVISION
Zoning & alternative use
B-4 · Marshfield, MAZoning B-4 · permitted uses
B-4 · Marshfield, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Zoning description
ached to this bylaw which is declared to be a part of this bylaw. In addition, uses are subject to Articles XI , XIII and XV where appropriate. [1] Uses Residential Business Industrial Overlay R-1 R-2 R-3 RB B-1 B-2 B-3 B-4 OP I-1 A PMUD WRPD BRVO KEY: S = Special Permit Required P = Use Permitted - = Prohibited Use Principal Uses Residential 1. One-family detached dwelling P P P P - S P P - - - - P P 2. Open space residential development
Zone name
Business Waterfront
General category
COMMERCIAL
Zone area
32.93 ac
Building & site characteristics
From public records
Year built
1956
Construction
CONCRETE
Heating
FORCED AIR
Stories
1
Buildings
1
Units
1
Bathrooms
4
Lot
0.26 ac
Current owner
From public records · entity-resolved
Gna Realty LLC
Entity
Mailing address
281 PLEASANT ST, MARSHFIELD, MA 02050-6311
Ownership since
2012
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
Dec 21, 2012
$175,000
Gna Realty LLC
Jill Armstrong
Quit Claim Arm's Length For Ne States
$140,000 · Abington Savings Bank
Sep 12, 2005
—
Jill Armstrong
—
Deed Of Trust
related
$450,000 · South Shore Bank
Dec 21, 2004
—
Jill Armstrong
—
Deed Of Trust
related
$350,000 · South Shore Bank
Dec 15, 2004
$1
Bridgeway Re Dev Corp
Bridgeway Inn Of Marshfie
Grant Deed
related
—
Nov 19, 2004
$125,000
Jill Armstrong
Polcari,john C
Grant Deed
—
Jun 28, 1995
—
Bridgeway Re Dev Corp
—
Deed Of Trust
related
$100,000 · Citizens Bank Of Ma
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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