
18 Cat Rock Rd Cos Cob, CT 06807
Cos Cob NeighborhoodHighlights
- Gourmet Kitchen
- Colonial Architecture
- Hilly Lot
- North Street School Rated A+
- Deck
- Vaulted Ceiling
About This Home
As of July 2025Stone terraces, rock gardens and mature trees frame an exciting new Cos Cob home. Dramatic entry hall sets the stage for modern, chic, traditional formal rooms and a great room with serving wet bar, informal dining, & family room with fireplace. Marble kitchen has array of gourmet features, Wolf stove, Wolf double wall ovens, 48” Sub-Zeros and outfitted pantry. Two powder rooms. Stairs to LL game room & theater, mud room plus garage. Further elegance in master suite with private sun deck, his & her dressing rooms, showers & vanities. Five more spacious bedrooms and enormous all purpose room. Above all, this stunning new home delivers on the convenience factor with everything you’ll ever need, schools, stores, post office, Starbucks and Cos Cob station.
Last Agent to Sell the Property
Sotheby's International Realty License #RES.0018044 Listed on: 09/16/2015

Last Buyer's Agent
JoAnn O'Hara
BHHS New England Properties License #RES.0794573
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $11,307
Year Built
- Built in 2015
Lot Details
- 0.56 Acre Lot
- Hilly Lot
- Property is zoned RA-2
Parking
- Attached Garage
Home Design
- Colonial Architecture
- Asphalt Roof
- Clapboard
Interior Spaces
- 6,056 Sq Ft Home
- Vaulted Ceiling
- 1 Fireplace
- Formal Dining Room
- Play Room
- Home Gym
- Wood Flooring
- Laundry Room
- Partially Finished Basement
Kitchen
- Gourmet Kitchen
- Breakfast Area or Nook
Bedrooms and Bathrooms
- 6 Bedrooms
- En-Suite Primary Bedroom
Outdoor Features
- Deck
Utilities
- Forced Air Heating and Cooling System
- Heating System Uses Gas
- Heating System Uses Natural Gas
- Gas Available
Listing and Financial Details
- Assessor Parcel Number 08a-1256/S
Similar Homes in the area
Home Values in the Area
Average Home Value in this Area
Property History
Date | Event | Price | Change | Sq Ft Price |
---|---|---|---|---|
07/18/2025 07/18/25 | Sold | $3,600,000 | 0.0% | $574 / Sq Ft |
05/30/2025 05/30/25 | Pending | -- | -- | -- |
05/01/2025 05/01/25 | For Sale | $3,599,000 | 0.0% | $574 / Sq Ft |
11/01/2024 11/01/24 | Rented | $19,000 | 0.0% | -- |
09/09/2024 09/09/24 | Price Changed | $19,000 | -5.0% | $3 / Sq Ft |
07/15/2024 07/15/24 | For Rent | $20,000 | 0.0% | -- |
06/16/2023 06/16/23 | Sold | $2,650,000 | +14.0% | $423 / Sq Ft |
05/01/2023 05/01/23 | Pending | -- | -- | -- |
04/22/2023 04/22/23 | For Sale | $2,325,000 | -1.1% | $371 / Sq Ft |
04/15/2021 04/15/21 | Sold | $2,350,000 | 0.0% | $388 / Sq Ft |
03/09/2021 03/09/21 | Pending | -- | -- | -- |
02/25/2021 02/25/21 | For Sale | $2,350,000 | +9.7% | $388 / Sq Ft |
01/14/2016 01/14/16 | Sold | $2,142,500 | -5.8% | $354 / Sq Ft |
12/11/2015 12/11/15 | Pending | -- | -- | -- |
09/16/2015 09/16/15 | For Sale | $2,275,000 | +261.1% | $376 / Sq Ft |
11/01/2013 11/01/13 | Sold | $630,000 | -6.7% | $441 / Sq Ft |
10/07/2013 10/07/13 | Pending | -- | -- | -- |
04/23/2013 04/23/13 | For Sale | $675,000 | -- | $472 / Sq Ft |
Tax History Compared to Growth
Tax History
Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
---|---|---|---|---|
2021 | $18,805 | $1,561,840 | $463,680 | $1,098,160 |
Agents Affiliated with this Home
-
Seller's Agent in 2025
Ann Simpson
BHHS New England Properties
(203) 940-0779
7 in this area
68 Total Sales
-
Buyer's Agent in 2025
Katie Andre Schaller
Coldwell Banker Realty
(914) 882-3359
4 in this area
27 Total Sales
-
Seller's Agent in 2023
Gaynor Brennan
Berkshire Hathaway Home Services
(203) 252-4650
1 in this area
48 Total Sales
-
Seller Co-Listing Agent in 2023
Debbie Brennan
Berkshire Hathaway Home Services
(203) 570-2342
1 in this area
60 Total Sales
-
N
Buyer's Agent in 2023
Non Member
Non-Member
-
J
Seller's Agent in 2021
JoAnn O'Hara
BHHS New England Properties
Map
Source: Greenwich Association of REALTORS®
MLS Number: 94580

APN: GREE M:08A B:1256/S
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