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Property profile & analytics
OFF-MARKET
Estimated value
$590,000
Office buildings
191 Mason St Greenwich, CT 06830-6608
Individually Owned
3-yr Hold
Free & Clear
Property ID
US15-0260987
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1910
Construction
FRAME
Total area
6,110 SF
Lot
0.31 ac (13,504 SF)
Zoning code
CGB
APN
GREE M:01 B:1737/S
UPID
US15-0260987
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
-
Patricia Ekvall, Sales Associate - Coldwell Banker Real Estate Agency
-
Coldwell Banker Real Estate: Tamar Lurie Real Estate Agency
-
J P Morgan Securities Inc Bank Loan Service
-
Pemberton 16 Condominium Complex
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$450k
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$733k
Blend (final)
Blend
$590k
Owner & transaction history
David S French · 3 yrs held
David S French
since 2023
1 recorded transaction
Zoning & alternative use
CGB · Greenwich, CT
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 Greenwich submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Greenwich 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
$450,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
APARTMENT HOUSE (5+ UNITS)
$970,000
Change: -9% · Conversion: Easy
Blend value · Realmo final
$590k
Range $531k – $649k · ±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
$97 / 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
$50,746
Tax year 2024
Assessed value
$4,251,520
Assessed 2024
Previous assessed
$4,251,520
+0.0% YoY
Effective rate
1.19%
On assessed value
Assessed land
$2,062,340
Assessed improvement
$2,189,180
Applied tax rate
124.0000
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
1910
Construction
FRAME
Heating
FORCED AIR
Buildings
1
Stories
2
Rooms
1
Total area
6,110 SF
Lot
0.31 ac (13,504 SF)
Zoning code
CGB
APN
GREE M:01 B:1737/S
UPID
US15-0260987
Jurisdiction
GREENWICH
Zoning & alternative use
CGB · Greenwich, CT
Zoning CGB · permitted uses
CGB · Greenwich, CT
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Greenwich. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
APARTMENT HOUSE (5+ UNITS)
Est. value
$970,000
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
FORCED AIR
Stories
2
Buildings
1
Rooms
1
Lot
0.31 ac
Current owner
From public records · entity-resolved
David S French
Individual
Free & Clear · 3 yrs held
Mailing address
191 MASON ST, GREENWICH, CT 06830-6608
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2023
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
1 recorded event · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jun 1, 2023
$2,500,000
David S French
Susannah Eykyn
Warranty Deed
—
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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