406 E Putnam Ave, Greenwich, CT 06830
Property image
Property image
OFF MARKET

406 E Putnam Ave
Greenwich, CT 06830

Cos Cob
  • 3 Beds
  • 1.5 Baths
  • 6,466 sqft

$4,155,100

Trulia Estimate
as of Aug 24, 2026
Est. Refi. Payment $27,178/mo*
Refinance Your Home

$4,155,100

Trulia Estimate
as of Aug 24, 2026
Est. Refi. Payment $27,178/mo*
Refinance Your Home
3 Beds
1.5 Baths
6,466 sqft

Home Value

Trulia Estimate
$4.16M
Since last month
Increased$65K (+1.6%)
Since last year
Increased$483K (+13.2%)
Since last sale
Increased$3M (+176.7%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +62% in the last 10 years
MonthEstimated value
2026
August 2026$4.15M
July 2026$4.09M
June 2026$4.12M
May 2026$4.14M
April 2026$3.91M
March 2026$3.91M
February 2026$3.76M
January 2026$3.8M
2025
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
8 River Ln, Cos Cob, CT
0.12
Single-Family Home
$1,400,000
03/19/26
2
2
1,666
4 Cos Cob Ave, Cos Cob, CT
0.12
Single-Family Home
$1,530,000
08/17/26
4
3
2,720
34 Ridge Rd, Cos Cob, CT
0.33
Single-Family Home
$1,645,000
07/01/26
3
2
2,344
42 Mead Ave, Greenwich, CT
0.24
Single-Family Home
$1,125,000
11/21/25
3
2
1,833
42 Mead Ave, Cos Cob, CT
0.24
Single-Family Home
$1,125,000
11/20/25
3
2
1,833
15 Ridge Rd, Cos Cob, CT
0.32
Single-Family Home
$1,420,000
10/24/25
4
2
2,073
24 Taylor Dr, Cos Cob, CT
0.29
Single-Family Home
$1,395,000
05/11/26
3
2
1,356
48 River Rd, Cos Cob, CT
0.21
Single-Family Home
$1,000,000
11/18/25
3
2
1,641
4 Mill Pond Ct, Cos Cob, CT
0.30
Single-Family Home
$1,424,800
02/13/26
3
1
1,416
34 1/2 Orchard St, Cos Cob, CT
0.12
Single-Family Home
$2,022,000
06/22/26
4
2.5
2,126

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
6 Robertson Lane #4, Cos Cob, CT 06807
0.07
$1,232,400
3
2.5
2,094
Off Market
6 Robertson Ln #7, Greenwich, CT 06807
0.08
$991,100
2
2.5
1,700
Off Market
453 E Putnam Ave #1L, Cos Cob, CT 06807
0.05
$1,014,100
2
2.5
1,464
Off Market
25 Valley Rd #25, Cos Cob, CT 06807
0.05
$1,630,400
4
3
1,768
Off Market
4 Miami Ct, Cos Cob, CT 06807
0.10
$1,885,000
4
3
1,785
Recently Sold
453 E Putnam Ave #1E, Cos Cob, CT 06807
0.08
$1,215,200
2
2.5
1,464
Off Market
453 E Putnam Ave #1M, Cos Cob, CT 06807
0.08
$908,800
2
2.5
1,464
Off Market
453 E Putnam Ave #3I, Cos Cob, CT 06807
0.08
$1,001,400
2
2.5
1,464
Off Market
453 E Putnam Ave #1I, Cos Cob, CT 06807
0.08
$844,000
2
2.5
1,464
Off Market
24 Valley Rd, Cos Cob, CT 06807
0.08
$2,400,000
4
4.5
3,221
Recently Sold
453 East Putnam Avenue #4B, Greenwich, CT 06830
0.09
$850,000
2
2.5
1,464
Recently Sold
7 River Ln, Cos Cob, CT 06807
0.10
$1,996,200
3
2
1,198
Off Market

Local Information

  • Map ViewExplore the area around 406 E Putnam Ave.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1980
Living Area
6,466 sqft
Price/Sqft
$643

About this House

Large Glenville home, bottom floor offers 3 bedrooms, a kitchen and a full bath. Upper floor has 4 rooms, a coat closet and a large half bath, tons of parking in the back. All Buyers and Agents, please perform own due diligence of property type, home was previously listed as a Commercial/Mixed Use/2-Family, owner makes no representation of current use or legality of units.
406 E Putnam Ave, Greenwich, CT 06830 is a 3 bedroom, 2 bathroom, 6,466 sqft single-family home in Cos Cob, built in 1980. It last sold for $1,500,000 on Sep 3, 2003. It is currently off market. The Trulia Estimate is $4,155,100, with a rent estimate of $5,588/month.

Home Details for 406 E Putnam Ave

Interior Features

Interior Details
BasementNumber of Rooms: 2
Heating & Cooling
Heating: Forced AirAir ConditioningHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 3Floors: Other

Exterior Features

Exterior Home Features
Roof: OtherExterior: Other
Parking & Garage
Parking: Off Street

Property Information

Year Built
Year Built: 1980
Property Type / Style
Property Type: Single Family Home

Lot Information

Lot Area: 7840 sqft

Price and Tax history

DateEventPrice
Sep 3, 2003
Source: N/A
Sold
$1,500,000

Market trends in Greenwich

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.44M
$338KMoM
Sale-to-List Price
103.8%
1.1%MoM
Price per sq ft
$825
$24MoM
Available listings
182
8MoM

Around this home

Neighborhood Overview

Cos Cob
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Cos Cob

At least 1 Trulia users voted on each feature.

  • 100 % Say neighbors are friendly

  • 100 % Say there are community events

  • 100 % Say there's holiday spirit

  • 100 % Say it's walkable to grocery stores

  • 100 % Say it's walkable to restaurants

  • 100 % Say parking is easy

  • 100 % Say car is needed

  • 100 % Say streets are well-lit

  • 100 % Say it's dog friendly

Sourced by Trulia users. Learn more about our methodology.

LGBTQ Local Legal Protections

Frequently asked questions about 406 E Putnam Ave

  • What is 406 E Putnam Ave estimated to be worth?
    Trulia's estimated value for 406 E Putnam Ave in Greenwich, CT is $4,155,100.
  • What is the price history for 406 E Putnam Ave?
    406 E Putnam Ave in Greenwich, CT last sold for $1,500,000 in September 2003.
  • Is Greenwich a buyer's or seller's market?
    Greenwich is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Greenwich?
    The median sale price in Greenwich is $2.44M. That is up $338K from the prior month.
  • How big is the lot at 406 E Putnam Ave?
    The lot at 406 E Putnam Ave in Greenwich, CT is about 0.18 acres (7,840 sq ft).
  • Does 406 E Putnam Ave have parking?
    Yes, 406 E Putnam Ave in Greenwich, CT has on-site parking.

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Apartments for Rent

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Off Market Homes Near 406 E Putnam Ave

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