391 E Putnam Ave, Greenwich, CT 06830
OFF MARKET

391 E Putnam Ave
Greenwich, CT 06830

Cos Cob
  • 6 Beds
  • 3 Baths
  • 3,901 sqft (on 0.53 acres)

$4,958,100

Trulia Estimate
as of Aug 15, 2026
Est. Refi. Payment $32,574/mo*
Refinance Your Home

$4,958,100

Trulia Estimate
as of Aug 15, 2026
Est. Refi. Payment $32,574/mo*
Refinance Your Home
6 Beds
3 Baths
3,901 sqft
(on 0.53 acres)

Home Value

Trulia Estimate
$4.96M
Since last month
Decreased$29K (-0.6%)
Since last year
Increased$638K (+14.9%)
Since last sale
Increased$3M (+124%)
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 +31% in the last 10 years
MonthEstimated value
2026
August 2026$4.93M
July 2026$4.96M
June 2026$4.96M
May 2026$4.94M
April 2026$4.65M
March 2026$4.66M
February 2026$4.5M
January 2026$4.48M
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
12 Old Post Rd, Cos Cob, CT
0.49
Single-Family Home
$2,025,000
08/06/26
5
2.5
3,340
34 1/2 Orchard St, Cos Cob, CT
0.17
Single-Family Home
$2,022,000
06/22/26
4
2.5
2,126
76 Sinawoy Rd, Cos Cob, CT
0.40
Single-Family Home
$2,250,000
11/14/25
4
2.5
2,423
4 Miami Ct, Cos Cob, CT
0.05
Single-Family Home
$1,885,000
03/20/26
4
3
1,785
24 Valley Rd, Cos Cob, CT
0.14
Single-Family Home
$2,400,000
02/25/26
4
4.5
3,221
24 Rippowam Rd, Cos Cob, CT
0.43
Single-Family Home
$1,595,000
08/22/25
4
2.5
3,827
76 Riverside Ave, Riverside, CT
0.47
Single-Family Home
$2,730,000
08/29/25
4
4.5
3,082
44 Bote Rd, Greenwich, CT
0.53
Single-Family Home
$2,605,000
09/08/25
4
4.5
2,916
7 Stanwich Rd, Greenwich, CT
0.50
Single-Family Home
$4,100,000
01/21/26
5
3.5
4,000
52 Valleywood Rd, Cos Cob, CT
0.41
Single-Family Home
$1,855,000
05/15/26
4
3
1,944

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 Ln #7, Greenwich, CT 06807
0.02
$991,100
2
2.5
1,700
Off Market
4 Miami Ct, Cos Cob, CT 06807
0.05
$1,885,000
4
3
1,785
Recently Sold
6 Robertson Lane #4, Cos Cob, CT 06807
0.03
$1,172,600
3
2.5
2,094
Off Market
24 Robertson Ln, Cos Cob, CT 06807
0.09
$1,682,000
3
3
2,105
Off Market
7 River Ln, Cos Cob, CT 06807
0.08
$1,959,600
3
2
1,198
Off Market
7 River Rd #C-8, Cos Cob, CT 06807
0.08
$99,000
Studio
-
-
For Sale
10A Relay Place, Cos Cob, CT 06807
0.13
$1,498,100
4
2
2,049
Off Market
10A Relay Pl, Cos Cob, CT 06807
0.13
$1,467,600
4
2
2,049
Off Market
3 Relay Ct, Cos Cob, CT 06807
0.13
$775,000
2
1
941
Recently Sold
453 E Putnam Ave #1L, Cos Cob, CT 06807
0.08
$957,100
2
2.5
1,464
Off Market
12 River Ln, Cos Cob, CT 06807
0.10
$2,813,400
4
2.5
2,653
Off Market
453 E Putnam Ave #1E, Cos Cob, CT 06807
0.10
$1,134,400
2
2.5
1,464
Off Market

Local Information

  • Map ViewExplore the area around 391 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
1869
Lot Size
0.53 acres
Living Area
3,901 sqft
Price/Sqft
$1,271

About this House

This single-family home is located at 391 E Putnam Ave, Greenwich, CT. 391 E Putnam Ave is in the Cos Cob neighborhood in Greenwich, CT and in ZIP code 06830. This property has 6 bedrooms, 3 bathrooms and approximately 3,901 sqft of floor space. This property has a lot size of 0.53 acres and was built in 1869.
391 E Putnam Ave, Greenwich, CT 06830 is a 6 bedroom, 3 bathroom, 3,901 sqft single-family home in Cos Cob, built in 1869. It last sold for $2,200,000 on Aug 15, 2011. It is currently off market. The Trulia Estimate is $4,958,100, with a rent estimate of $7,862/month.

Home Details for 391 E Putnam Ave

Interior Features

Interior Details
BasementNumber of Rooms: 13
Heating & Cooling
Heating: Forced AirAir ConditioningHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 3

Exterior Features

Exterior Home Features
Roof: CompositionDeck
Parking & Garage
Parking: Off Street

Property Information

Year Built
Year Built: 1869Year Updated: 1960
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 3

Lot Information

Lot Area: 0.53 acres

Price and Tax history

DateEventPrice
Aug 15, 2011
Source: N/A
Sold
$2,200,000
Oct 14, 1998
Source: N/A
Sold
$702,500
Jun 24, 1998
Source: N/A
Sold
$385,000
Oct 17, 1997
Source: N/A
Sold
$680,000

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

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Homes for sale near 391 E Putnam Ave

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Off Market Homes Near 391 E Putnam Ave

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Frequently asked questions about 391 E Putnam Ave

  • What is 391 E Putnam Ave estimated to be worth?
    Trulia's estimated value for 391 E Putnam Ave in Greenwich, CT is $4,958,100.
  • What is the price history for 391 E Putnam Ave?
    391 E Putnam Ave in Greenwich, CT last sold for $2,200,000 in August 2011.
  • 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 391 E Putnam Ave?
    The lot at 391 E Putnam Ave in Greenwich, CT is about 0.53 acres (23,086 sq ft).
  • Does 391 E Putnam Ave have parking?
    Yes, 391 E Putnam Ave in Greenwich, CT has on-site parking.