525 E Putnam Ave
Cos Cob, CT 06830
Cos Cob
Studio
4,057 sqft
Studio
4,057 sqft
Local Information
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Description
This single-family home is located at 525 E Putnam Ave, Cos Cob, CT. 525 E Putnam Ave is in the Cos Cob neighborhood in Cos Cob, CT and in ZIP code 06830. This property has approximately 4,057 sqft of floor space. This property has a lot size of 9583 sqft and was built in 1945.
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.
Home Highlights
Parking
Garage
Outdoor
Deck
HOA
None
Price/Sqft
No Info
Listed
No Info
Home Details for 525 E Putnam Ave
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Interior Details BasementNumber of Rooms: 4 |
Levels, Entrance, & Accessibility Stories: 3 |
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Exterior Home Features Roof: Shake ShingleDeck |
Parking & Garage GarageParking: Garage Detached |
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Year Built Year Built: 1945 |
Property Type / Style Property Type: Single Family Home |
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Units in Building: 2 |
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Lot Area: 9583 sqft |
Price History for 525 E Putnam Ave
| Date | Price | Event | Source |
|---|---|---|---|
| 02/09/2009 | $1,600,000 | Sold | N/A |
| 04/27/1998 | $15,000 | Sold | N/A |
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $20,381 |
| Assessment | $1,649,060 |
Home facts updated by county records
Comparable Sales for 525 E Putnam Ave
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.29 | Single-Family Home | $1,595,000 | 08/22/25 | 4 | 2.5 | 3,827 | |
0.16 | Single-Family Home | $2,400,000 | 02/25/26 | 4 | 4.5 | 3,221 | |
0.31 | Single-Family Home | $3,150,000 | 12/19/25 | 4 | 3.5 | 4,600 | |
0.31 | Single-Family Home | $2,250,000 | 04/03/26 | 4 | 3.5 | 2,641 | |
0.37 | Single-Family Home | $1,995,000 | 10/21/25 | 5 | 4.5 | 2,775 | |
0.17 | Single-Family Home | $1,400,000 | 03/19/26 | 2 | 2 | 1,666 | |
0.36 | Single-Family Home | $1,315,000 | 05/29/25 | 3 | 3 | 1,871 | |
0.33 | Single-Family Home | $1,850,000 | 10/15/25 | 4 | 4 | 2,400 | |
0.44 | Single-Family Home | $1,975,000 | 03/06/26 | 5 | 4 | 3,260 | |
0.45 | Single-Family Home | $1,790,000 | 05/30/25 | 4 | 5 | 2,638 |
Assigned Schools
These are the assigned schools for 525 E Putnam Ave.
- Central Middle School
- 6-8
- Public
- 506 Students
8/10GreatSchools RatingParent Rating AverageThis school is very unsafe! we had to evacuate from an earthquake that was 40 miles away a few years ago because they thought it would fall down. (Most people didn't even notice the 1 second of slight shaking) 1 star. Cracks in the building too.Student Review6mo ago - Cos Cob School
- K-5
- Public
- 337 Students
6/10GreatSchools RatingParent Rating AverageWonderful teachers and safe environment. Good building with plenty of land behind where the kids can play. new Adequate staff ao the school is fairly well resourced. My daughter did very well academically and it has carried forward into Central middle school. Good parental engagement especially when it domes to the annual fund raiser / carnival. Friendly place and your kids will love it here. I strongly recommend this schoolParent Review3y ago - Greenwich High School
- 9-12
- Public
- 2668 Students
10/10GreatSchools RatingParent Rating AverageThis school has no support for children who struggle. The school pass these kids through for good ratings. Poor preparation for college. Guidance counselor was unsupportive and not helpful. I do not recommend this school.Parent Review11mo ago 
Check out schools near 525 E Putnam Ave.
Neighborhood Overview
Neighborhood stats provided by third party data sources.
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525 E Putnam Ave, Cos Cob, CT 06830 is a studio, 4,057 sqft single-family home built in 1945. 525 E Putnam Ave is located in Cos Cob, Cos Cob. This property is not currently available for sale. 525 E Putnam Ave was last sold on Feb 9, 2009 for $1,600,000. The current Trulia Estimate for 525 E Putnam Ave is $3,938,500.