21 Calhoun Drive, Greenwich, Connecticut

$6,150,000

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5

Beds

8

Baths

6,143

Square feet

1.80

Acres

About 21 Calhoun Drive

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.

Features of 21 Calhoun Drive

MLS® # 24205524
Price $6,150,000
Bedrooms 5
Bathrooms 8.00
Full Baths 6
Half Baths 2
Square Footage 6,143
Acres 1.80
Type Single Family For Sale
Style Tudor
Status Active

Community Information

Address 21 Calhoun Drive
Area N/A
City Greenwich
County Fairfield
State Connecticut
Zip Code 06831

Amenities

Parking Attached Garage
# of Garages 3
Is Waterfront No
Waterfront Not Applicable
Has Pool Yes
Pool Indoor Pool

Interior

Appliances Gas Range, Wall Oven, Microwave, Refrigerator, Freezer, Dishwasher, Wine Chiller
Heating Hot Water, Natural Gas
Cooling Central Air
Fireplace Yes
# of Fireplaces 6
Has Basement Yes
Basement Full

Exterior

Exterior Brick, Stucco
Exterior Features Patio
Lot Description Level Lot
Roof Shingle, Slate
Foundation Stone

School Information

Elementary Glenville
Middle Western
High Greenwich

Additional Information

Date Listed September 9th, 2026
Days on Market 27
Zoning RA-1
RE / Bank Owned No
HOA Fees 1600
HOA Fees Freq. Annually

Listing Details

OfficeSerhant Connecticut, LLC

Listing Map

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Listing information last updated on October 6th, 2026 at 7:59pm EDT.