General
- Association Name: Belle Haven
44 & 40 Mayo AvenueGreenwich, CT 06830
For Sale
$24,900,000
Smart Buyer Rebate $249,000
Listed by Joanne Mancuso
·License #RES.0762572
·Houlihan Lawrence
·203-667-3887
Last updated February 20, 2026
·Source: FlexMLS #124356
Listing Facts
- TypeSingle-family
- NeighborhoodBell Haven
- Bedrooms7
- Bathrooms7
- Days on Prevu25
- Taxes$127,012/year
- Size18,217 sqft
- Price per sqft$1,367
Amenities
- Private Outdoor Space
- Air Conditioning
- Parking
Location
Mortgage Calculator
Listing History
02/19/2026
Listed by Houlihan Lawrence
$24,900,000
Property Details for 44 & 40 Mayo Avenue
Association
Exterior
Construction
- Roof: Slate
- Window Features: Bay Window(s)
- Year Built: 1891
- Architectural Style: English Manor
- Construction Materials: Stone, Stucco
Features
- Other Structures: Guest House
- Patio And Porch Features: Terrace
- Pool Private: Yes
Measurements
- Building Area Total: 18,217
- Lot Features: Formal Gardens, Level
- Lot Size Acres: 2.74
- Lot Size Area: 2
- Lot Size Square Feet: 119,354
- Lot Size Units: Acres
Financial
Taxes
- Parcel Number: 02-1597/S
- Tax Annual Amount: $127,012.00
- Tax Assessed Value: $10,578,300.00
Interior
Features
- Fireplace: Yes
- Fireplaces Total: 8
- Interior Features: Cedar Closet(s), Kitchen Island, Bookcases, Back Stairs, Central Vacuum, Sauna
Rooms
- Basement: Walk-Out Access, Finished
- Bathrooms Full: 6
- Bathrooms Half: 2
- Bathrooms Total Integer: 8
- Bedrooms Total: 7
Other
General
- Exclusions: Call LB
Location
- City Region: South Of Post Road
Parking
Parking
- Garage Spaces: 2
- Parking Features: Attached Garage
Schools
Elementary School
- Elementary School: Julian Curtiss
Middle or Junior School
- Middle Or Junior School: Central
Utilities
Equipment
- Cooling: Central Air
- Has Cooling: Yes
- Heating: Natural Gas, Combination
- Has Heating: Yes
- Laundry Features: Laundry Room
- Other Equipment: Generator
- Sewer: Town Sewer
- Water Source: Public
Frequently Asked Questions
How many bedrooms and bathrooms does this single-family home have?
There are 7 bedrooms and 7 bathrooms in this single-family home at 44 & 40 Mayo Avenue.
What schools are nearby to 44 & 40 Mayo Avenue?
Nearby schools include the Julian Curtiss Elementary School and Central Middle School.
Does this single-family home have parking?
Yes, there are 2 parking spaces available for 44 & 40 Mayo Avenue.
What are the annual taxes for 44 & 40 Mayo Avenue?
Annual taxes for this single-family home are estimated at $127,012.
How does 44 & 40 Mayo Avenue compare to other single-family homes in Bell Haven?
This single-family home is listed 121% above the average price for single-family homes in Bell Haven and has been on the market for 59 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 Belle Haven home owners association.
What is the square footage on this single-family home?
According to the MLS, this listing is 18,217 sqft.
44 & 40 Mayo Avenue is a 7-bedroom, 7-bath single-family home for sale in Greenwich CT 06830. Available on Prevu for 25 days at $24,900,000. This home features 18,217 square feet of living space, located in Fairfield County. The median listing price for single-family homes in this area is $11,249,000. Nearby schools include Julian Curtiss Elementary School and Central Middle School. The home offers private outdoor space, air conditioning, and parking. Browse more 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 DisclaimersRebate 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.
