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

73 E Putnam Ave
Cos Cob, CT 06830

Cos Cob
  • Studio
  • 4,589 sqft

$4,363,700

Trulia Estimate
as of Aug 14, 2026
Est. Refi. Payment $28,678/mo*
Refinance Your Home

$4,363,700

Trulia Estimate
as of Aug 14, 2026
Est. Refi. Payment $28,678/mo*
Refinance Your Home
Studio
4,589 sqft

Home Value

Trulia Estimate
$4.36M
Since last month
Increased$16K (+0.4%)
Since last year
Increased$488K (+12.3%)
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 +40% in the last 10 years
MonthEstimated value
2026
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
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
24 Taylor Dr, Cos Cob, CT
0.22
Single-Family Home
$1,395,000
05/11/26
3
2
1,356

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
12 Salem St, Cos Cob, CT 06807
0.06
$2,120,300
4
4
2,298
Off Market
14 Salem St, Cos Cob, CT 06807
0.07
$2,062,300
4
3
2,693
Off Market
14 Salem Street, Greenwich, CT 06830
0.07
$2,614,100
4
3
2,693
Off Market
12B Cross Lane, Cos Cob, CT 06807
0.10
$1,969,500
3
3
3,000
Off Market
22 Cross Ln, Cos Cob, CT 06807
0.11
-
3
1.5
1,354
Off Market
8 Cross Lane, Greenwich, CT 06830
0.10
$1,848,200
6
3.5
1,965
Off Market
1525 East Putnam Avenue #308, Greenwich, CT 06830
0.08
$598,700
2
1
905
Off Market
35 Cross Ln, Cos Cob, CT 06807
0.14
$1,249,500
3
1.5
1,315
Off Market
13 Field Rd, Cos Cob, CT 06807
0.11
$1,450,000
2
2
1,662
Recently Sold
12 Old Post Rd, Cos Cob, CT 06807
0.09
$2,025,000
5
2.5
3,340
Recently Sold
11 Valleywood Rd, Cos Cob, CT 06807
0.11
$2,745,000
5
4.5
3,934
Recently Sold
17 Field Rd, Cos Cob, CT 06807
0.13
$1,478,800
2
1
1,402
Off Market

Local Information

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Home Highlights

Property Type
Single-Family Home
Year Built
1947
Living Area
4,589 sqft
Price/Sqft
$951

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. It is currently off market. The Trulia Estimate is $4,363,700, with a rent estimate of $7,194/month.

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 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
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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

Apartments for Rent

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Explore by feature - Pet Friendly

47 pet-friendly rentals in Cos Cob, CT

Explore by feature - Garage

64 rentals with a garage in Cos Cob, CT

Explore by feature - Air Conditioning

141 rentals with air conditioning in Cos Cob, CT

Explore by feature - Pool

17 rentals with a pool in Cos Cob, CT

Explore by feature - Washer/dryer

103 rentals with a washer/dryer in Cos Cob, CT

Explore by feature - Outdoor Space

27 rentals with an outdoor space in Cos Cob, CT

Homes for sale near 73 E Putnam Ave

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Off Market Homes Near 73 E Putnam Ave

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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 $4,363,700.
  • 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 $2.44M. That is up $338K 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 6/10), 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.