522 E Putnam Ave, Greenwich, CT 06830
OFF MARKET

522 E Putnam Ave
Greenwich, CT 06830

Cos Cob
  • Studio
  • 8,872 sqft (on 0.62 acres)

$9,632,400

Trulia Estimate
as of Aug 10, 2026
Est. Refi. Payment $63,008/mo*
Refinance Your Home

$9,632,400

Trulia Estimate
as of Aug 10, 2026
Est. Refi. Payment $63,008/mo*
Refinance Your Home
Studio
8,872 sqft
(on 0.62 acres)

Local Information

  • Map ViewExplore the area around 522 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
1942
Lot Size
0.62 acres
Living Area
8,872 sqft
Price/Sqft
$1,086

About this House

This single-family home is located at 522 E Putnam Ave, Greenwich, CT. 522 E Putnam Ave is in the Cos Cob neighborhood in Greenwich, CT and in ZIP code 06830. This property has approximately 8,872 sqft of floor space. This property has a lot size of 0.62 acres and was built in 1942.
522 E Putnam Ave, Greenwich, CT 06830 is a studio, 8,872 sqft single-family home in Cos Cob, built in 1942. It last sold for $3,750,000 on Sep 30, 2009. It is currently off market. The Trulia Estimate is $9,632,400, with a rent estimate of $7,646/month.

Home Details for 522 E Putnam Ave

Interior Features

Interior Details
BasementNumber of Rooms: 9
Levels, Entrance, & Accessibility
Stories: 2Elevator
Heating & Cooling
Air Conditioning

Exterior Features

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

Property Information

Year Built
Year Built: 1942
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Lot Information

Lot Area: 0.62 acres

Price History for 522 E Putnam Ave

DatePriceEventSource
09/30/2009$3,750,000Sold
N/A

Market trends in Greenwich

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.1M
$340KMoM
Sale-to-List Price
102.7%
1.5%MoM
Price per sq ft
$801
$22MoM
Available listings
190
7MoM
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Property Tax and Assessment

Year2025
Tax$52,367
Assessment$4,237,170
Home facts updated by county records

Comparable Sales for 522 E Putnam Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
18 Woodside Dr, Greenwich, CT
0.26
Single-Family Home
$3,600,000
12/15/25
4
5
3,532
7 Stanwich Rd, Greenwich, CT
0.11
Single-Family Home
$4,100,000
01/21/26
5
3.5
4,000
12 Old Post Rd, Cos Cob, CT
0.08
Single-Family Home
$2,025,000
08/06/26
5
2.5
3,340
44 W Brother Dr, Greenwich, CT
0.42
Single-Family Home
$7,875,000
09/22/25
7
7
6,337
11 Valleywood Rd, Cos Cob, CT
0.16
Single-Family Home
$2,745,000
11/20/25
5
4.5
3,934
232 E Putnam Ave, Greenwich, CT
0.50
Single-Family Home
$3,350,000
07/23/26
-
9,824
24 Annjim Dr, Greenwich, CT
0.45
Single-Family Home
$4,753,000
04/20/26
5
4.5
4,937
42 Mallard Dr, Greenwich, CT
0.55
Single-Family Home
$4,950,000
08/14/25
5
8
6,000
51 Indian Field Rd, Greenwich, CT
0.20
Single-Family Home
$2,200,000
05/01/26
6
3.5
2,916
23 Annjim Dr, Greenwich, CT
0.45
Single-Family Home
$4,250,000
04/28/26
4
4.5
3,980

Nearby homes

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Assigned Schools

These are the assigned schools for 522 E Putnam Ave.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

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

46 pet-friendly rentals in Greenwich, CT

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Explore by feature - Air Conditioning

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Explore by feature - Pool

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Explore by feature - Washer/dryer

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Explore by feature - Outdoor Space

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Homes for sale near 522 E Putnam Ave

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Off Market Homes Near 522 E Putnam Ave

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Frequently asked questions about 522 E Putnam Ave

  • What is 522 E Putnam Ave estimated to be worth?
    Trulia's estimated value for 522 E Putnam Ave in Greenwich, CT is $9,632,400.
  • What is the price history for 522 E Putnam Ave?
    522 E Putnam Ave in Greenwich, CT last sold for $3,750,000 in September 2009.
  • 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 $2.1M. That is up $340K from the prior month.
  • How big is the lot at 522 E Putnam Ave?
    The lot at 522 E Putnam Ave in Greenwich, CT is about 0.62 acres (27,007 sq ft).
  • Does 522 E Putnam Ave have parking?
    Yes, 522 E Putnam Ave in Greenwich, CT has on-site parking.