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Property profile & analytics
OFF-MARKET
Estimated value
$1,375,000
Office buildings
99 Marginal St, Chelsea, MA 02150-3461
Entity Owned
20-yr Hold
Free & Clear
Property ID
US38-1618249
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2015
Construction
FRAME
Total area
4,954 SF
Lot
5.66 ac (246,588 SF)
Zoning code
PORT
APN
CHEL M:012 P:001
UPID
US38-1618249
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
-
Eastern Minerals Inc Building Supply General Contractor
-
PORT Park Park Tourist Attraction
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$1.38M
Owner & transaction history
Rock Chapel Marine LLC · 20 yrs held
Rock Chapel Marine LLC
since 2005
2 recorded transactions
Zoning & alternative use
PORT · Chelsea, 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 Chelsea submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Chelsea 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
$278 / 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
$122,883
Tax year 2024
Assessed value
$5,174,000
Assessed 2024
Previous assessed
$5,184,900
-0.2% YoY
Effective rate
2.38%
On assessed value
Assessed land
$4,123,000
Assessed improvement
$1,051,000
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
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
2015
Construction
FRAME
Heating
HOT WATER
Cooling
YES
Buildings
1
Stories
2
Units
1
Rooms
8
Bathrooms
5
Total area
4,954 SF
Lot
5.66 ac (246,588 SF)
Zoning code
PORT
APN
CHEL M:012 P:001
UPID
US38-1618249
Jurisdiction
CHELSEA
Metro division
BOSTON-QUINCY, MA METROPOLITAN DIVISION
Zoning & alternative use
PORT · Chelsea, MA
Zoning PORT · permitted uses
PORT · Chelsea, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Chelsea. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
2015
Construction
FRAME
Heating
HOT WATER
Cooling
Yes
Stories
2
Buildings
1
Units
1
Rooms
8
Bathrooms
5
Lot
5.66 ac
Current owner
From public records · entity-resolved
Rock Chapel Marine LLC
Entity
Free & Clear · 20 yrs held
Mailing address
134 MIDDLE ST STE #210, LOWELL, MA 01852-1883
Ownership since
2005
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
2 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Sep 30, 2005
$1,400,000
Rock Chapel Marine LLC
Coastal Oil Ne INC
Grant Deed
—
Sep 30, 2005
$1
Rock Chapel Marine LLC
Coastal Oil Ne INC
Grant Deed
related
—
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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