Greenwich, CT / 10 DAYS ON MARKET

21 Calhoun DriveGreenwich, CT 06831

Asking price$6,150,000Active

Our Take

21 Calhoun Drive is a five-bedroom Greenwich residence on approximately 1.8 acres, with six full baths and two half baths. Its setting combines mature landscaping and privacy with in-town convenience. The home includes gracious entertaining rooms, everyday living spaces, distinctive architectural details, and a newly renovated kitchen. A private wellness area adds an indoor pool and dedicated fitness space, while permitted plans create options for a cottage and a pickleball or tennis court.

Estimated buyer rebate

Buy with Cress and Save at least$92,250 on brokerage fees*

When you buy with Cress, we give you back a portion of the brokerage commission we receive. For purchases of $5 million and above, we rebate 60% or more of the buyer-agent commission we receive. Contact Cress for your tailored rebate. At this asking price, the base estimate is $92,250.

See how the commission rebate works ↗

*Base estimate assumes a 2.5% buyer-agent commission and a 60% rebate. Any rebate above 60% for a $5M+ purchase is determined with Cress. Actual savings depend on final purchase price and commission received.

At a glance

Active · MLS #24205524
Bedrooms
5
BathroomsBaths
6 full / 2 half
Square feet
6,143
Year built
1923
Acres
1.8
Property taxes
$37,450

July 2026-June 2027

What stands out

  • Approximately 1.8 acres with mature landscaping
  • Gracious entertaining and everyday living spaces
  • Distinctive architectural details throughout
  • Newly renovated kitchen
  • Indoor pool and dedicated fitness space
  • Permitted plans for an additional cottage
  • Potential pickleball or tennis court
Read the full listing description

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.

Schools

Elementary
Glenville
Middle
Western
High
Greenwich

Schools as reported by SmartMLS. Confirm attendance assignments with the district.

A closer look at the location

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21 Calhoun Drive, Greenwich, CT 06831

Price history

DateEventPrice
Originally listed$6,150,000

Intermediate price changes and previous listings may not be included.

Could this be your next home?

Let’s talk about the property—and what working with Cress could save you.

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*Base estimate: $6,150,000 asking price × assumed 2.5% buyer-agent commission × 60% rebate = $92,250. For the $5M+ tier, we offer a 60% rebate or more; contact Cress to determine any additional rebate. Actual savings depend on the final purchase price and commission Cress receives. The assumed commission is not a representation of this listing's offered compensation.

Listed by Serhant Connecticut, LLC · (203) 489-7800

Danielle Malloy

SmartMLS · Listing #24205524 · Active

Listing data checked: Sep 18, 2026, 7:02 AM EDT.

Listing information is deemed reliable but not guaranteed. Cress commentary is separate from the MLS listing description. Contact Cress about a correction.

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