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Property profile & analytics
OFF-MARKET
Investment properties
391 Putnam Ave Cos Cob, CT 06807-2581
Entity Owned
14-yr Hold
Property ID
US15-0209780
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1869
Construction
FRAME
Total area
3,901 SF
Lot
0.53 ac (23,087 SF)
Zoning code
LB
APN
GREE M:08 B:2405/S
UPID
US15-0209780
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
-
Greenwich Dentistry Dental Office
-
Sean Sutton, DDS Dental Office
-
Mark Sutton, DDS Dental Office
-
Charles Zatzkin Dental Office
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
Mrs Re LLC · 14 yrs held
Mrs Re LLC
since 2011
6 recorded transactions
Zoning & alternative use
LB · Cos Cob, 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 Cos Cob submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Cos Cob 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 2023Property tax & assessments
Tax year 2023
Tax billed
$20,456
Tax year 2023
Assessed value
$1,757,980
Assessed 2023
Previous assessed
$1,757,980
+0.0% YoY
Effective rate
1.16%
On assessed value
Assessed land
$1,099,210
Assessed improvement
$658,770
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 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
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Status
Off-Market
Year built
1869
Construction
FRAME
Heating
FORCED AIR
Cooling
YES
Buildings
1
Stories
3
Rooms
13
Bathrooms
3
Total area
3,901 SF
Lot
0.53 ac (23,087 SF)
Zoning code
LB
APN
GREE M:08 B:2405/S
UPID
US15-0209780
Jurisdiction
GREENWICH
Zoning & alternative use
LB · Cos Cob, CTZoning LB · permitted uses
LB · Cos Cob, CT
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Building & site characteristics
From public records
Year built
1869
Construction
FRAME
Heating
FORCED AIR
Cooling
Yes
Stories
3
Buildings
1
Rooms
13
Bathrooms
3
Lot
0.53 ac
Current owner
From public records · entity-resolved
Mrs Re LLC
Entity
Mailing address
391 E PUTNAM AVE, COS COB, CT 06807-2581
Ownership since
2011
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
Aug 15, 2011
—
Mrs Re LLC
—
Deed Of Trust
$750,000 · Charles M Zatzkin
Aug 15, 2011
$2,200,000
Mrs Re LLC
Zatzkin,charles M
Warranty Deed
$1,950,000 · Home Loan & Investment Bank
Apr 18, 2002
—
Charles M Zatzkin
—
Deed Of Trust
related
$1,350,000 · Ridgefield Bank
Oct 6, 2000
—
Frank Gilbride 2nd
—
Deed Of Trust
related
$1,630,000 · First Union National Bank
Oct 14, 1998
$702,500
F J Gilbride 2nd
Artali Prop LLC
Warranty Deed
—
Oct 17, 1997
$680,000
Caplin,joanne Tr
Oarr Sarah Jane Est
Grant 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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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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