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

80 E Putnam Ave
Cos Cob, CT 06830

Cos Cob
  • 3 Beds
  • 4 Baths
  • 2,000 sqft

$1,824,300

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $12,032/mo*
Refinance Your Home

$1,824,300

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $12,032/mo*
Refinance Your Home
3 Beds
4 Baths
2,000 sqft

Local Information

  • Map ViewExplore the area around 80 E Putnam Ave.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Condo
Year Built
1868
Living Area
2,000 sqft
Price/Sqft
$912

About this House

This bright and sunny 3 BR, 3.1 BA, 2,000 sf unit has beautiful finishes, crown molding, hardwood floors, central air, a finished lower level and an office/solarium. The gourmet kitchen with granite countertops and stainless steel appliances, leads out to the terrace. The beautiful master suite is complete with master bath and a balcony. Amazing private outdoor space. Parking for 3 cars. (Photos of next door unit, it is a mirror image)
80 E Putnam Ave, Cos Cob, CT 06830 is a 3 bedroom, 4 bathroom, 2,000 sqft condo in Cos Cob, built in 1868. It last sold for $650,000 on Mar 31, 2004. More recently, it was listed as a rental in October 2021 with an asking price of $5,200 per month. That rental listing was removed on October 8, 2021. It is currently off market. The Trulia Estimate is $1,824,300, with a rent estimate of $6,802/month.

Home Details for 80 E Putnam Ave

Interior Features

Interior Details
BasementAtticNumber of Rooms: 14
Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2

Exterior Features

Exterior Home Features
Roof: AsphaltExterior: Wood
Parking & Garage
Parking: Off Street

Property Information

Year Built
Year Built: 1868
Property Type / Style
Property Type: CondoArchitecture: Other

Lot Information

Lot Area: 0.30 acres

Price History for 80 E Putnam Ave

DatePriceEventSource
10/08/2021ListingRemovedHoulihan Lawrence Inc
10/02/2021$5,200Listed For RentHoulihan Lawrence Inc #114432
03/31/2004$650,000Sold
Smart MLS #98184726

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$10,214
Assessment$826,420
Home facts updated by county records

Comparable Sales for 80 E Putnam Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
24 Harold St #E, Cos Cob, CT
0.61
Condo
$1,660,000
03/09/26
4
3.5
2,736
11 River Rd #119, Greenwich, CT
0.39
Condo
$896,000
03/19/26
2
2
1,104
453 E Putnam Ave #4H, Cos Cob, CT
0.38
Condo
$850,000
02/18/26
2
2.5
1,464
453 E Putnam Ave #4H, Greenwich, CT
0.38
Condo
$850,000
02/18/26
2
3
1,464
9 River Rd #418, Greenwich, CT
0.39
Condo
$855,000
07/01/26
2
2.5
1,181
453 East Putnam Avenue #4B, Greenwich, CT
0.48
Condo
$850,000
05/20/26
2
2.5
1,464
453 E Putnam Ave #4B, Cos Cob, CT
0.50
Condo
$850,000
05/20/26
2
2.5
1,464
44 Valley Rd #A, Cos Cob, CT
0.47
Condo
$1,580,000
11/21/25
4
3.5
2,632
15 River Rd #205, Greenwich, CT
0.41
Condo
$914,000
07/31/26
2
2
1,270
15 River Rd #222, Greenwich, CT
0.41
Condo
$900,000
04/10/26
2
2
1,205

Nearby homes

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Assigned Schools

These are the assigned schools for 80 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

48 pet-friendly rentals in Cos Cob, CT

Explore by feature - Garage

70 rentals with a garage in Cos Cob, CT

Explore by feature - Air Conditioning

156 rentals with air conditioning in Cos Cob, CT

Explore by feature - Pool

21 rentals with a pool in Cos Cob, CT

Explore by feature - Washer/dryer

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

Explore by feature - Outdoor Space

30 rentals with an outdoor space in Cos Cob, CT

Homes for sale near 80 E Putnam Ave

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Off Market Homes Near 80 E Putnam Ave

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Frequently asked questions about 80 E Putnam Ave

  • What is 80 E Putnam Ave estimated to be worth?
    Trulia's estimated value for 80 E Putnam Ave in Cos Cob, CT is $1,824,300.
  • What is the price history for 80 E Putnam Ave?
    80 E Putnam Ave in Cos Cob, CT last sold for $650,000 in March 2004.
  • 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 $2.1M. That is up $340K from the prior month.
  • Does 80 E Putnam Ave have air conditioning?
    Yes, 80 E Putnam Ave in Cos Cob, CT has air conditioning.
  • Does 80 E Putnam Ave have parking?
    Yes, 80 E Putnam Ave in Cos Cob, CT has on-site parking.