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

261 E Putnam Ave
Cos Cob, CT 06830

Cos Cob
  • Studio
  • 2,190 sqft

$2,712,800

Trulia Estimate
as of Aug 14, 2026
Est. Refi. Payment $17,857/mo*
Refinance Your Home

$2,712,800

Trulia Estimate
as of Aug 14, 2026
Est. Refi. Payment $17,857/mo*
Refinance Your Home
Studio
2,190 sqft

Home Value

Trulia Estimate
$2.71M
Since last month
Decreased$69K (-2.5%)
Since last year
Increased$424K (+18.5%)
Since last sale
Increased$2M (+578.2%)
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 +35% in the last 10 years
MonthEstimated value
2026
August 2026$2.71M
July 2026$2.74M
June 2026$2.78M
May 2026$2.78M
April 2026$2.72M
March 2026$2.71M
February 2026$2.59M
January 2026$2.45M
2025

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
42 Mead Ave, Greenwich, CT
0.18
Single-Family Home
$1,125,000
11/21/25
3
2
1,833
42 Mead Ave, Cos Cob, CT
0.18
Single-Family Home
$1,125,000
11/20/25
3
2
1,833
48 River Rd, Cos Cob, CT
0.17
Single-Family Home
$1,000,000
11/18/25
3
2
1,641
15 Ridge Rd, Cos Cob, CT
0.26
Single-Family Home
$1,420,000
10/24/25
4
2
2,073
34 1/2 Orchard St, Cos Cob, CT
0.20
Single-Family Home
$2,022,000
06/22/26
4
2.5
2,126
4 Miami Ct, Cos Cob, CT
0.04
Single-Family Home
$1,885,000
03/20/26
4
3
1,785
34 Ridge Rd, Cos Cob, CT
0.30
Single-Family Home
$1,645,000
07/01/26
3
2
2,344
8 River Ln, Cos Cob, CT
0.17
Single-Family Home
$1,400,000
03/19/26
2
2
1,666
3 Relay Ct, Cos Cob, CT
0.07
Single-Family Home
$775,000
05/08/26
2
1
941
4 Mill Pond Ct, Cos Cob, CT
0.19
Single-Family Home
$1,424,800
02/13/26
3
1
1,416

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
4 Miami Ct, Cos Cob, CT 06807
0.04
$1,885,000
4
3
1,785
Recently Sold
6 Robertson Ln #7, Greenwich, CT 06807
0.08
$991,100
2
2.5
1,700
Off Market
3 Relay Ct, Cos Cob, CT 06807
0.07
$775,000
2
1
941
Recently Sold
10A Relay Place, Cos Cob, CT 06807
0.07
$1,519,500
4
2
2,049
Off Market
10A Relay Pl, Cos Cob, CT 06807
0.07
$1,467,600
4
2
2,049
Off Market
6 Robertson Lane #4, Cos Cob, CT 06807
0.09
$1,172,600
3
2.5
2,094
Off Market
1 Relay Ct, Cos Cob, CT 06807
0.07
$1,146,400
3
2
1,113
Off Market
24 Robertson Ln, Cos Cob, CT 06807
0.12
$1,682,000
3
3
2,105
Off Market
7 River Ln, Cos Cob, CT 06807
0.13
$1,959,600
3
2
1,198
Off Market
7 River Rd #C-8, Cos Cob, CT 06807
0.13
$99,000
Studio
-
-
For Sale
453 E Putnam Ave #1L, Cos Cob, CT 06807
0.16
$957,100
2
2.5
1,464
Off Market
18 Suburban Ave, Cos Cob, CT 06807
0.15
-
3
2
1,563
Off Market

Local Information

  • Map ViewExplore the area around 261 E Putnam Ave.
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Home Highlights

Property Type
Single-Family Home
Year Built
1917
Living Area
2,190 sqft
Price/Sqft
$1,239
Parking
Garage

About this House

This single-family home is located at 261 E Putnam Ave, Cos Cob, CT. 261 E Putnam Ave is in the Cos Cob neighborhood in Cos Cob, CT and in ZIP code 06830. This property has approximately 2,190 sqft of floor space. This property has a lot size of 9147 sqft and was built in 1917.
261 E Putnam Ave, Cos Cob, CT 06830 is a studio, 2,190 sqft single-family home in Cos Cob, built in 1917. It last sold for $400,000 on Oct 6, 1995. It is currently off market. The Trulia Estimate is $2,712,800, with a rent estimate of $6,560/month.

Home Details for 261 E Putnam Ave

Interior Features

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

Exterior Features

Exterior Home Features
Roof: Shake Shingle
Parking & Garage
GarageParking: Garage Detached

Property Information

Year Built
Year Built: 1917
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 9147 sqft

Price and Tax history

DateEventPrice
Oct 6, 1995
Source: N/A
Sold
$400,000

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
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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

66 rentals with a garage in Cos Cob, CT

Explore by feature - Air Conditioning

142 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

105 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 261 E Putnam Ave

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Off Market Homes Near 261 E Putnam Ave

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Frequently asked questions about 261 E Putnam Ave

  • What is 261 E Putnam Ave estimated to be worth?
    Trulia's estimated value for 261 E Putnam Ave in Cos Cob, CT is $2,712,800.
  • What is the price history for 261 E Putnam Ave?
    261 E Putnam Ave in Cos Cob, CT last sold for $400,000 in October 1995.
  • 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.
  • How big is the lot at 261 E Putnam Ave?
    The lot at 261 E Putnam Ave in Cos Cob, CT is about 0.21 acres (9,147 sq ft).
  • Does 261 E Putnam Ave have a garage?
    Yes, 261 E Putnam Ave in Cos Cob, CT has a garage.