523 E Putnam Ave
Cos Cob, CT 06807
Cos Cob
5 Beds
9,501 sqft (on 0.83 acres)
5 Beds
9,501 sqft
(on 0.83 acres)
Local Information
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Description
Water views: Fully-occupied Harbor House Condominium complex with two units available (three in total), all with views of the Harbor. Built to the highest standards by renowned local builder and award winning architect in 2009. The interior is beautifully finished and situated on landscaped property in a central location. Each unit has outdoor private space. These high-end spacious units have an 8 car underground garage with additional private storage for each unit, and additional guest parking. Cap rate is gross total, please call for full expense sheet. 2015 taxes: $35,000. Annual income TBD. Current Individual rentals: Unit A $9,500, Unit B $11,000. Located on Boston Post Road with easy access to I-95, close to downtown Greenwich and the Metro North Train Station.
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
No Info
Outdoor
No Info
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
No Info
Home Details for 523 E Putnam Ave
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Heating & Cooling Heating: GasAir ConditioningCooling System: CentralHeating Fuel: Gas |
Interior Details Number of Rooms: 7 |
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Year Built Year Built: 2011 |
Property Type / Style Property Type: Multi FamilyArchitecture: Colonial |
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Exterior Home Features Exterior: Wood |
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Lot Area: 0.83 acres |
Price History for 523 E Putnam Ave
| Date | Price | Event | Source |
|---|---|---|---|
| 07/10/2017 | $4,950,000 | ListingRemoved | Agent Provided |
| 01/03/2017 | $4,950,000 | PriceChange | Agent Provided |
| 12/21/2016 | $7,750,000 | Listed For Sale | Agent Provided |
| 11/03/2016 | $2,800,000 | Sold | N/A |
| 10/29/2016 | $7,750,000 | PriceChange | Agent Provided |
| 10/03/2016 | $2,995,000 | PriceChange | Agent Provided |
| 08/08/2016 | $7,750,000 | PriceChange | Agent Provided |
| 08/05/2016 | $2,995,000 | PriceChange | Agent Provided |
| 07/29/2016 | $7,750,000 | PriceChange | Agent Provided |
| 07/27/2016 | $2,995,000 | PriceChange | Agent Provided |
| 07/19/2016 | $7,750,000 | PriceChange | Agent Provided |
| 07/14/2016 | $2,995,000 | PriceChange | Agent Provided |
| 07/02/2016 | $7,750,000 | PriceChange | Agent Provided |
| 06/06/2016 | $2,995,000 | PriceChange | Agent Provided |
| 02/26/2016 | $7,750,000 | Listed For Sale | Agent Provided |
| 08/17/2013 | $1,795,000 | ListingRemoved | Agent Provided |
| 06/12/2013 | $1,795,000 | PriceChange | Agent Provided |
| 05/20/2013 | $10,500 | ListingRemoved | Agent Provided |
| 03/05/2013 | $10,500 | Listed For Rent | Agent Provided |
| 10/31/2011 | $12,500 | ListingRemoved | Agent Provided |
| 09/03/2011 | $2,995,000 | PriceChange | Agent Provided |
| 08/25/2011 | $12,500 | PriceChange | Agent Provided |
| 08/15/2011 | $7,900 | PriceChange | Agent Provided |
| 08/13/2011 | $12,500 | Listed For Rent | Agent Provided |
| 08/04/2011 | $3,175,000 | Listed For Sale | Agent Provided |
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Comparable Sales for 523 E Putnam Ave
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.17 | Multi-Family Home | $1,275,000 | 05/15/26 | 4 | 2 | 2,432 | |
0.22 | Multi-Family Home | $1,575,000 | 08/28/25 | - | 3,344 | ||
0.34 | Multi-Family Home | $1,300,000 | 01/05/26 | - | 2,629 | ||
1.55 | Multi-Family Home | $1,550,000 | 06/11/25 | 4 | 2 | 2,592 | |
1.65 | Multi-Family Home | $725,000 | 09/15/25 | 5 | 3 | 2,732 | |
2.09 | Multi-Family Home | $1,350,000 | 11/21/25 | 8 | 4 | 3,664 | |
1.88 | Multi-Family Home | $3,000,000 | 09/22/25 | - | 5,900 | ||
1.91 | Multi-Family Home | $760,000 | 08/21/25 | 5 | 2 | 1,458 | |
1.92 | Multi-Family Home | $795,000 | 10/09/25 | 4 | 2 | 1,969 | |
2.37 | Multi-Family Home | $2,500,000 | 09/18/25 | 15 | 15 | 5,760 |
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Assigned Schools
These are the assigned schools for 523 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 Review7mo ago - Cos Cob School
- PK-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 523 E Putnam Ave.
Neighborhood Overview
Neighborhood stats provided by third party data sources.
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523 E Putnam Ave, Cos Cob, CT 06807 is a 5 bedroom, 9,501 sqft multi-family built in 2011. 523 E Putnam Ave is located in Cos Cob, Cos Cob. This property is not currently available for sale. 523 E Putnam Ave was last sold on Nov 3, 2016 for $2,800,000. The current Trulia Estimate for 523 E Putnam Ave is $4,343,100.