73 E Putnam Ave, Cos Cob, CT 06830
OFF MARKET

$4,196,400

Trulia Estimate
  • Studio
  • 4,589 sqft

73 E Putnam Ave, Cos Cob, CT 06830

Cos Cob
Est. Refi. Payment $29,229/mo*
Refinance Your Home

Home Value

Trulia Estimate
$4.2M
Since last month
Decreased$266K (-6%)
Since last year
Increased$305K (+7.8%)
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 +32% in the last 10 years
MonthEstimated value
2026
October 2026$4.2M
September 2026$4.39M
August 2026$4.46M
July 2026$4.45M
June 2026$4.44M
May 2026$4.46M
April 2026$4.32M
March 2026$4.29M
February 2026$4.27M
January 2026$4.07M
2025
2024
2023

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
11 Valleywood Rd, Cos Cob, CT
0.11
Single-Family Home
$2,745,000
11/20/25
5
4.5
3,934
7 Stanwich Rd, Greenwich, CT
0.14
Single-Family Home
$4,100,000
01/21/26
5
3.5
4,000
12 Old Post Rd, Cos Cob, CT
0.09
Single-Family Home
$2,025,000
08/06/26
5
2.5
3,340
51 Indian Field Rd, Greenwich, CT
0.21
Single-Family Home
$2,200,000
05/01/26
6
3.5
2,916
15 Ridge Rd, Cos Cob, CT
0.27
Single-Family Home
$1,420,000
10/24/25
4
2
2,073
34 Ridge Rd, Cos Cob, CT
0.34
Single-Family Home
$1,645,000
07/01/26
3
2
2,344
23 Annjim Dr, Greenwich, CT
0.45
Single-Family Home
$4,250,000
04/28/26
4
4.5
3,980
33 Mead Ave, Cos Cob, CT
0.40
Single-Family Home
$2,700,000
08/26/26
4
4
3,492
20 Ridge Rd, Cos Cob, CT
0.31
Single-Family Home
$2,503,000
07/31/26
3
3.5
1,839
24 Annjim Dr, Greenwich, CT
0.44
Single-Family Home
$4,753,000
04/20/26
5
4.5
4,937

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
65 E Putnam Ave, Greenwich, CT 06830
0.03
$3,509,900
Studio
-
2,860
Off Market
2 field rd, cos cob, CT 06807
0.04
$3,364,100
6
5
4,000
Off Market
6 Salem St, Greenwich, CT 06830
0.05
-
1
1
1,960
Off Market
6 Salem St #2, Cos Cob, CT 06807
0.05
-
2
1
-
Off Market
59 E Putnam Ave #2, Cos Cob, CT 06807
0.05
-
2
2
-
Off Market
59 E Putnam Ave #1, Cos Cob, CT 06807
0.05
-
2
2
1,800
Off Market
59 E Putnam Ave, Greenwich, CT 06830
0.05
$7,174,300
Studio
-
8,142
Off Market
8 Salem St, Greenwich, CT 06830
0.05
$1,387,300
4
2
2,262
Off Market
8 Salem St #2, Cos Cob, CT 06807
0.05
-
2
1
1,000
Off Market
1 Field Rd, Cos Cob, CT 06807
0.05
$2,809,600
2
3
1,750
Off Market
10 Salem St, Greenwich, CT 06830
0.05
$2,379,000
2
2
3,432
Off Market
10 Salem St #1, Cos Cob, CT 06807
0.05
$1,509,900
2
2
1,100
Off Market
10 Salem St #2, Cos Cob, CT 06807
0.05
$1,425,900
2
1
1,100
Off Market
82 E Putnam Ave, Cos Cob, CT 06807
0.05
$1,727,000
3
3.5
2,000
Off Market
49 Sachem Ln, Greenwich, CT 06830
0.05
$1,485,500
4
3
2,100
Off Market
6 Field Rd, Cos Cob, CT 06807
0.05
$2,666,500
7
4
4,448
Off Market
86 E Putnam Ave, Cos Cob, CT 06807
0.06
$1,476,400
2
1
1,085
Off Market
12 Salem St, Greenwich, CT 06830
0.06
-
6
4
3,200
Off Market
12 Salem St #3, Cos Cob, CT 06807
0.06
-
1
1
495
Off Market
12 Salem St, Cos Cob, CT 06807
0.06
$2,136,800
4
4
2,298
Off Market

Local Information

  • Map ViewExplore the area around 73 E Putnam Ave.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1947
4,589 sqft
$914/sqft

About this House

This single-family home is located at 73 E Putnam Ave, Cos Cob, CT. 73 E Putnam Ave is in the Cos Cob neighborhood in Cos Cob, CT and in ZIP code 06830. This property has approximately 4,589 sqft of floor space. This property has a lot size of 8712 sqft and was built in 1947.
73 E Putnam Ave, Cos Cob, CT 06830 is a studio, 4,589 sqft single-family home in Cos Cob, built in 1947. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $4,196,400.

Home Details for 73 E Putnam Ave

Interior Features

Interior Details
BasementNumber of Rooms: 2
Levels, Entrance, & Accessibility
Stories: 1

Property Information

Year Built
Year Built: 1947
Property Type / Style
Property Type: Single Family Home

Exterior Features

Parking & Garage
Parking: Off Street

Lot Information

Lot Area: 8712 sqft

Price and Tax history

YearProperty taxTax assessment
2025
$21,650
$1,751,750
Home facts updated by county records

Market trends in Greenwich

Last updated September 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.75M
$168KMoM
Sale-to-List Price
103.2%
1.6%MoM
Price per sq ft
$807
$18MoM
Available listings
183
29MoM
Sourced by Trulia Market Trends

Around this home

Neighborhood Overview

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

What Locals Say about Cos Cob

This October

Trick-or-Treat Score

Built from what locals say about Cos Cob.
  • 100% say neighbors are friendly
  • 100% say there are community events
  • 100% say there's holiday spirit
Trulia Trick or TreatStart Ghost Hunt
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 73 E Putnam Ave

  • What is 73 E Putnam Ave estimated to be worth?
    Trulia's estimated value for 73 E Putnam Ave in Cos Cob, CT is $4,196,400.
  • Is Cos Cob a buyer's or seller's market?
    Cos Cob is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Cos Cob?
    The median sale price in Cos Cob is $2.75M. That is up $168K from the prior month.
  • What are the closest schools to 73 E Putnam Ave?
    The closest schools to 73 E Putnam Ave in Cos Cob, CT are Central Middle School (rated 8/10), Cos Cob School (Pre-K/Elementary, rated 8/10), Greenwich High School (rated 10/10).
  • How big is the lot at 73 E Putnam Ave?
    The lot at 73 E Putnam Ave in Cos Cob, CT is about 0.20 acres (8,712 sq ft).
  • Does 73 E Putnam Ave have parking?
    Yes, 73 E Putnam Ave in Cos Cob, CT has on-site parking.

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