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44 & 40 Mayo Avenue, 
Greenwich, CT 06830

$24,900,000

7

Beds

8

Baths

18,217

Sq Ft

Single Family

Active

Listed by

Joanne Mancuso

Houlihan Lawrence

Last updated:

February 19, 2026, 08:01 PM

MLS#

124356

Source:

CT GAR

About This Home

44 & 40 Mayo Avenue

Nestled within the prestigious Belle Haven, Fairholme Estate is a magnificent English Manor that exudes timeless elegance and grandeur. Set on 2.74 beautifully landscaped acres, this seven-bedroom masterpiece features a spectacular pool, gracious wraparound porch, formal gardens, and expansive lawns, complemented by a charming coachman's cottage. Meticulously preserved to honor its historic character, the residence has been thoughtfully updated for modern living with a stunning, Alexa Hampton-designed interior that seamlessly blends classic sophistication with contemporary comfort. Fairholme Estate includes a separate 5,800 square foot Guest House.

Home Facts

Single Family

8 Baths

7 Bedrooms

Built in 1891

Price Summary

24,900,000

$1,366 per Sq. Ft.

MLS #:

124356

Last Updated:

February 19, 2026, 08:01 PM

Added:

9 day(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

7

Bathrooms

Total Bathrooms:

8

Full Bathrooms:

6

Interior

Living Area:

18,217 Sq. Ft.

Structure

Structure

Architectural Style:

English Manor

Building Area:

18,217 Sq. Ft.

Year Built:

1891

Lot

Lot Size (Sq. Ft):

119,354

Finances & Disclosures

Finances

Price:

$24,900,000

Price per Sq. Ft:

$1,366 per Sq. Ft.

Source:CT GAR
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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.