Back to Search
Property profile & analytics
OFF-MARKET
Estimated value
$1,130,000
Investment properties
406 Putnam Ave Cos Cob, CT 06807-2503
Entity Owned
5-yr Hold
Property ID
US15-0152044
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1980
Construction
STEEL FRAME
Total area
6,466 SF
Lot
0.18 ac (7,841 SF)
Zoning code
LB
APN
GREE M:08 B:2690/S
UPID
US15-0152044
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
-
Putnam Design Hardware & Home Improvement Kitchen & Bath Showroom
-
Risoli Planning & Engineering Civil Engineer Land Surveyor
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$1.17M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$1.16M
Blend (final)
Blend
$1.13M
Owner & transaction history
406 Putnam LLC · 5 yrs held
406 Putnam LLC
since 2020
Last sale
$1.1M
7 recorded transactions
Zoning & alternative use
LB · Cos Cob, CT
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Restaurant
$1.7M
+10.3%
Auto repair, garage
$1.5M
+0.3%
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
Method
Estimation
Statistic approach
$1,210,000
ML approach
$1,170,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$1,505,000
Current use
RESTAURANT
$1,660,000
Change: +10% · Conversion: Difficult
AUTO REPAIR, GARAGE
$1,510,000
Change: +0% · Conversion: Difficult
Blend value · Realmo final
$1.13M
Range $1.02M – $1.24M · ±10% · vs last sale $1.05M (Oct 5 2020)
Last sale anchor
$1.05M
Oct 5 2020
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
$175 / 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
$20,281
Tax year 2024
Assessed value
$1,699,110
Assessed 2024
Previous assessed
$1,699,110
+0.0% YoY
Effective rate
1.19%
On assessed value
Assessed land
$590,730
Assessed improvement
$1,108,380
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
1980
Construction
STEEL FRAME
Heating
FORCED AIR
Cooling
YES
Buildings
1
Stories
3
Rooms
2
Total area
6,466 SF
Lot
0.18 ac (7,841 SF)
Zoning code
LB
APN
GREE M:08 B:2690/S
UPID
US15-0152044
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
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$1.5M
RESTAURANT
Est. value
$1.7M
AUTO REPAIR, GARAGE
Est. value
$1.5M
COMMERCIAL (GENERAL) Current
RESTAURANT
AUTO REPAIR, GARAGE
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
1980
Construction
STEEL FRAME
Heating
FORCED AIR
Cooling
Yes
Stories
3
Buildings
1
Rooms
2
Lot
0.18 ac
Current owner
From public records · entity-resolved
406 Putnam LLC
Entity
Mailing address
406 E PUTNAM AVE, COS COB, CT 06807-2503
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
9 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Oct 5, 2020
—
406 Putnam LLC
Putnam Hldgs LLC
Quit Claim Deed
—
May 1, 2013
—
Putnam Holdings LLC
—
Deed Of Trust
related
$1,600,000 · Savings Bank Of Danbury
Oct 3, 2012
—
Putnam Holdings LLC
—
Deed Of Trust
related
$1,100,000 · Ffld County Bank Corp
Nov 7, 2008
—
Putnam Holdings LLC
—
Deed Of Trust
related
$250,000 · Ffld County Bank Corp
Sep 26, 2008
—
Putnam Holdings LLC
—
Deed Of Trust
related
$1,031,000 · Ffld County Bank Corp
Sep 3, 2003
—
Putnam Hldgs LLC
—
Deed Of Trust
related
$200,000 · Zenon Grzybowski
Sep 3, 2003
$1,500,000
Putnam Holdings LLC
Rudys Limousine Svcs INC
Warranty Deed
related
$899,750 · Zions First National Bank
Aug 30, 1988
—
Putnam Hill Apts
—
Deed Of Trust
related
$3,000,000 · Peoples Bank
Jan 29, 1988
$1,050,000
Rudys Limo INC
Cove Devel
Grant Deed
$800,000 · Peoples Bank
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.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
You own 406 Putnam Ave?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
