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21 Calhoun DriveGreenwich, CT 06831

For Sale

$6,150,000

Smart Buyer Rebate $61,500

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 guest house, 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.

Listed by Danielle Malloy

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License #REB.0792747

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Serhant Connecticut LLC

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203-921-9987

Last updated September 13, 2026

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Source: FlexMLS #125808

Listing Facts

  • TypeSingle-family
  • NeighborhoodPemberwick
  • Bedrooms5
  • Bathrooms7
  • Days on Prevu6
  • HOA/Maint. Fees$1,600/year
  • Taxes$29,276/year
  • Size6,143 sqft
  • Price per sqft$1,001

Amenities

  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

09/09/2026
Listed by Serhant Connecticut LLC
$6,150,000
  1. 09/09/2026$6,150,000
    Listed by Serhant Connecticut LLC

Property Details for 21 Calhoun Drive

Association

Fees

  • Association Fee: $1,600.00 Annually

General

  • Association Name: Calhoun Drive

Exterior

Construction

  • Property Condition: Antique
  • Roof: Slate, Architectural Shngle
  • Year Built: 1923
  • Architectural Style: English Manor
  • Construction Materials: Brick, Stucco

Features

  • Patio And Porch Features: Terrace
  • Pool Private: Yes

Measurements

  • Building Area Total: 6,143
  • Lot Features: Parklike
  • Lot Size Acres: 1.80
  • Lot Size Area: 1
  • Lot Size Square Feet: 78,408
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 07-2043
  • Tax Annual Amount: $29,276.00
  • Tax Assessed Value: $2,431,590.00

Interior

Features

  • Fireplace: Yes
  • Fireplaces Total: 6
  • Interior Features: Kitchen Island, Back Stairs, Hot Tub

Rooms

  • Basement: Walk-Out Access, Partially Finished
  • Bathrooms Full: 6
  • Bathrooms Half: 2
  • Bathrooms Total Integer: 8
  • Bedrooms Total: 5

Other

Location

  • City Region: South Parkway

Parking

Parking

  • Garage Spaces: 3
  • Parking Features: Attached Garage, Garage Door Opener

Schools

Elementary School

  • Elementary School: Glenville

Middle or Junior School

  • Middle Or Junior School: Western

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Natural Gas, Combination
  • Has Heating: Yes
  • Laundry Features: Laundry Room
  • Other Equipment: Generator
  • Sewer: Septic Tank
  • Utilities: Cable Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 7 bathrooms in this single-family home at 21 Calhoun Drive.

What schools are nearby to 21 Calhoun Drive?

Nearby schools include the Glenville Elementary School and Western Middle School.

Does this single-family home have parking?

Yes, there are 3 parking spaces available for 21 Calhoun Drive.

What are the annual taxes for 21 Calhoun Drive?

Annual taxes for this single-family home are estimated at $29,276.

How does 21 Calhoun Drive compare to other single-family homes in Pemberwick?

This single-family home is listed 51% above the average price for single-family homes in Pemberwick and has been on the market for 32 less days than the typical home in this area.

What building or home owners association is the single-family home part of?

This single-family home is part of the Calhoun Drive home owners association.

What is the square footage on this single-family home?

According to the MLS, this listing is 6,143 sqft.

21 Calhoun Drive is a 5-bedroom, 7-bath single-family home for sale in Greenwich CT 06831. Listed on Prevu for 6 days at $6,150,000. This residence features 6,143 square feet of living space, located in Pemberwick. The median listing price for single-family homes in this area is $2,395,000. Nearby schools include Glenville Elementary School and Western Middle School. Property amenities include private outdoor space, air conditioning, parking, and washer/dryer. View other single-family home listings in Fairfield County.

Based on information from Greenwich Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.