21 Calhoun Drive Greenwich, CT $ 6,150,000
21 Calhoun Drive
$ 6,150,000
Recently Listed
Open House 9/12 4pm - 6pm
Share Save

21 Calhoun Drive

Greenwich, CT, 06831
$ 6,150,000
Bedrooms5 Baths6.2 Sq 6,143

Monthly Estimate*

$ 38,832

21 Calhoun Drive, Greenwich, CT 06831 - Image 1
21 Calhoun Drive, Greenwich, CT 06831 - Image 2
21 Calhoun Drive, Greenwich, CT 06831 - Image 3
21 Calhoun Drive, Greenwich, CT 06831 - Image 4
21 Calhoun Drive, Greenwich, CT 06831 - Image 5
21 Calhoun Drive, Greenwich, CT 06831 - Image 6
21 Calhoun Drive, Greenwich, CT 06831 - Image 7
21 Calhoun Drive, Greenwich, CT 06831 - Image 8
21 Calhoun Drive, Greenwich, CT 06831 - Image 9
21 Calhoun Drive, Greenwich, CT 06831 - Image 10
21 Calhoun Drive, Greenwich, CT 06831 - Image 11
21 Calhoun Drive, Greenwich, CT 06831 - Image 12
21 Calhoun Drive, Greenwich, CT 06831 - Image 13
21 Calhoun Drive, Greenwich, CT 06831 - Image 14
21 Calhoun Drive, Greenwich, CT 06831 - Image 15
View a Virtual Tour

Single Family Home for sale in Greenwich, CT

for $6,150,000 with 5 bedrooms and 6 full baths, 2 half baths. This 6,143 square foot home was built in 1923 on a lot size of 1.8.

A rare opportunity in one of Greenwich's most coveted in-town settings, 21 Calhoun Drive combines the timeless presence and character of a classic Greenwich estate with exceptional privacy, generous scale and remarkable potential. Set amid mature landscaping on approximately 1.8 acres in a one-acre zone, the property offers nearly twice the typical lot size while remaining just moments from the heart of Greenwich. Inside, gracious entertaining rooms, comfortable everyday living spaces and distinctive architectural details create a home with warmth, character and a sense of permanence rarely replicated today. A newly renovated kitchen brings a fresh, modern sensibility to the residence and serves as a beautiful centerpiece for daily living and entertaining. A private wellness retreat, complete with an indoor pool and dedicated fitness space, brings resort-style amenities into the comfort and privacy of home. Beyond the main residence, the expansive grounds offer an exceptional opportunity to further enhance the estate. Fully permitted plans provide the option to add a Cottage, along with the potential for a pickleball or tennis court an increasingly rare offering this close to town. With its substantial acreage, established landscaping, private wellness amenities and extraordinary flexibility for the future, this is a unique opportunity to enjoy a private estate setting without sacrificing the convenience of in-town Greenwich living.

See more

Open House

9/12/2026 4:00 PM - 6:00 PM
21 Calhoun Drive Greenwich, CT
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 6,150,000

Bedrooms

5

Full Bath

6

Half Bath

2

Property Type

Single Family

Taxes

$ 37,450

Style

Lot Size

1.8

Year Built

1923

Town/City

Greenwich

MLS | Web ID

24205524

Features
General
Zoning RA-1
Neighborhood N/A
County Fairfield
Tax Year July 2026-June 2027
Property Type Single Family For Sale
Status Active
Acres 1.8
Directions GPS
High School Greenwich
City Greenwich
Elementary School Glenville
Sq Ft Total 6143
DOM 1
Year Built 1923
Style Tudor
Year Built Source Public Records
Pool Description Indoor Pool
Association Fee Includes Snow Removal Road Maintenance
See more
Interior
Cooling System Central Air
Total Rooms 13
Basement Description Full
See more
Exterior
Water Source Public Water Connected
Lot Description Level Lot
See more
* Excluded Features
List By
Danielle Malloy

Listing Agent

Serhant Connecticut, Llc

Broker

Danielle@SerhantCT.com

Email

Affordability Calculator

$41,953
Per Month
93%
7%
0%
Monthly Principal & Interest
$38,832
Monthly Property Taxes
$3,121
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save

Discover how much house you can afford

Your dream home may be within reach.

Learn More about how to save

The time to sell is now
THE TIME TO SELL IS NOW! What's my home worth?
Nearby
3041640 Elementary School
3041976 Middle School
Greenwich High School High School
Pricing History
DatePricePrice ChangeDescription
9/9/2026$6,150,000 Listed Price

Map


See all

21 Calhoun Drive, Greenwich, CT, 06831 is a Single Family Home for sale at $6,150,000 with 6,143 sqft and a lot size of 1.8. 21 Calhoun Drive has 5 bedrooms, 6.2 baths, and was built in 1923. The property's zip code is 06831 which is in Greenwich, CT