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Property profile & analytics
OFF-MARKET
Estimated value
$15,225,000
Office buildings
203-207 Portland St, Boston, MA 02114
Entity Owned
25-yr Hold
Free & Clear
Property ID
US38-0845544
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1920
Construction
BRICK
Total area
47,580 SF
Lot
0.18 ac (7,986 SF)
Zoning code
C
APN
CBOS W:03 P:01651 S:000
UPID
US38-0845544
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
by Request
Comparable Approach
Comparable
$10.81M
Blend (final)
Blend
$15.23M
Owner & transaction history
Portland St LLC · 25 yrs held
Portland St LLC
since 2000
5 recorded transactions
Zoning & alternative use
C · Boston, 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 Boston submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Boston 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
Blend value · Realmo final
$15.23M
Range $13.70M – $16.75M · ±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
$320 / 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
$333,670
Tax year 2024
Assessed value
$13,204,200
Assessed 2024
Previous assessed
$13,856,400
-4.7% YoY
Effective rate
2.53%
On assessed value
Assessed land
$3,361,500
Assessed improvement
$9,842,700
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
1920
Construction
BRICK
Heating
NONE
Buildings
1
Stories
6
Units
14
Total area
47,580 SF
Lot
0.18 ac (7,986 SF)
Zoning code
C
APN
CBOS W:03 P:01651 S:000
UPID
US38-0845544
Jurisdiction
BOSTON
Metro division
BOSTON-QUINCY, MA METROPOLITAN DIVISION
Zoning & alternative use
C · Boston, MA
Zoning C · permitted uses
C · Boston, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Boston. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1920
Construction
BRICK
Heating
NONE
Stories
6
Buildings
1
Units
14
Lot
0.18 ac
Current owner
From public records · entity-resolved
Portland St LLC
Entity
Free & Clear · 25 yrs held
Mailing address
93 UN ST STE #315, NEWTON, MA 02459-2241
Ownership since
2000
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 21, 2000
$9,300,000
Portland St LLC
Portland Causeway RT
Grant Deed
related
—
Aug 30, 1989
—
Portland Causweay RT
—
Deed Of Trust
related
$5,000,000 · Zeger Corp Pension Trust
Mar 16, 1988
—
Portland Causeway RT
—
Deed Of Trust
related
$3,300,000 · Zuckerman Family Nomi
Feb 18, 1987
—
Portland Causeway RT
—
Deed Of Trust
related
$1,600,000 · Boston Trade Bank
—
—
205 Portland Street LLC
—
Deed Of Trust
related
$13,000,000 · Rockland Tr
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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