Kevin Stone
Sotheby's International Realty
(914) 745-7902
14 Total Sales
1 in Riverside
$5,000,000 Price
507 River Rd Cos Cob, CT 06807
Riverside Area
5
Beds
4.5
Baths
5,723
Sq Ft
0.33
Acre Lot
Highlights
- Open Floorplan
- Colonial Architecture
- 2 Fireplaces
- North Mianus School Rated A+
- Attic
- Mud Room
About This Home
As of July 2026Welcome to this professionally landscaped, energy-efficient custom-built 4,100 sq ft home with 5 beds and 4.1 baths, located across from North Mianus School. Enjoy a bright living room with gas fireplace, sunlit dining room with large glass doors, and a custom chef's kitchen with quartzite counters. Step outside to a bluestone patio with sitting wall and built-in natural gas BBQ-perfect for entertaining. A pantry and mudroom lead to the 2-car garage. The finished lower level adds 1,623 sq ft with 9 ft ceilings, fireplace, and French doors to a second patio. Special rental for a special renter.
Last Agent to Rent the Property
Coldwell Banker Realty Brokerage Phone: (203) 273-3916 License #RES.0778892 Listed on: 06/16/2026
Co-Listed By
Coldwell Banker Realty Brokerage Phone: (203) 273-3916 License #RES.0805934
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Home Details
Home Type
- Single Family
Year Built
- Built in 2015
Lot Details
- 14,375 Sq Ft Lot
- Stone Wall
- Level Lot
- Property is zoned R-12
Home Design
- Colonial Architecture
- Wood Siding
Interior Spaces
- Open Floorplan
- 2 Fireplaces
- Mud Room
- Finished Basement
- Basement Fills Entire Space Under The House
- Home Security System
Kitchen
- Oven or Range
- Gas Range
- Dishwasher
Bedrooms and Bathrooms
- 5 Bedrooms
Laundry
- Laundry on upper level
- Dryer
- Washer
Attic
- Pull Down Stairs to Attic
- Unfinished Attic
Parking
- 2 Car Garage
- Automatic Garage Door Opener
Eco-Friendly Details
- Energy-Efficient Insulation
Outdoor Features
- Patio
- Outdoor Grill
Schools
- North Mianus Elementary School
- Eastern Middle School
- Greenwich High School
Utilities
- Central Air
- Heating System Uses Natural Gas
- Power Generator
Listing and Financial Details
- Assessor Parcel Number 1856055
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Cos Cob, CT
-
Kevin Stone
-
Andrei Balaj
Andrei Balaj
Higgins Group Real Estate
(475) 258-8006
53 Total Sales
1 in Riverside
$1,100,000 Price
-
Jane Jones
Jane Jones
Berkshire Hathaway NE Prop.
(475) 258-7083
20 Total Sales
1 in Riverside
$2,260,000 Price
-
Danielle Claroni
Danielle Claroni
Sotheby's International Realty
(475) 275-9349
66 Total Sales
3 in Riverside
$1.1M - $1.6M Price Range
-
Robin Bartholomew
Robin Bartholomew
Berkshire Hathaway NE Prop.
(914) 690-6417
66 Total Sales
3 in Riverside
$1,312,500 Price Range
-
Urs Klarer
Urs Klarer
Coldwell Banker Realty
(475) 268-1377
66 Total Sales
2 in Riverside
$1,390,000 Price Range
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 07/06/2026 07/06/26 | Rented | $17,000 | +6.3% | -- | |
| 06/16/2026 06/16/26 | For Rent | $16,000 | +6.7% | -- | |
| 07/30/2025 07/30/25 | Rented | $15,000 | 0.0% | -- | |
| 07/22/2025 07/22/25 | Under Contract | -- | -- | -- | |
| 06/29/2025 06/29/25 | For Rent | $15,000 | 0.0% | -- | |
| 07/02/2014 07/02/14 | Sold | $725,000 | -9.3% | $430 / Sq Ft | View Prior Sale |
| 05/29/2014 05/29/14 | Pending | -- | -- | -- | |
| 03/13/2014 03/13/14 | For Sale | $799,000 | -- | $474 / Sq Ft |
Source: SmartMLS
Agents Affiliated with this Home
-
Richard Breglia
Landlord's Agent in 2026
Richard Breglia
Coldwell Banker Realty
(203) 273-3916
83 Total Sales
-
Anna Breglia
AB
Landlord's Co-Listing Agent in 2026
Anna Breglia
Coldwell Banker Realty
(203) 921-8673
6 Total Sales
-
Gloria Gimenez-Ferrer
Tenant's Agent in 2026
Gloria Gimenez-Ferrer
Berkshire Hathaway Home Services
(203) 559-1604
79 Total Sales
-
Aurelia Gilbert
Seller's Agent in 2014
Aurelia Gilbert
Coldwell Banker Realty
(203) 451-3178
45 Total Sales
-
G
Buyer's Agent in 2014
grw.rets.bregliar
grw.rets.RETS_OFFICE
Map
Source: SmartMLS
MLS Number: 24111163
APN: GREE 386-12-2206S
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
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