9 Walnut Street, Greenwich, CT 06807 - Photo 1

1/1

$1,375,000

Sold
Closed
Lots/Land
0.52 Acres
Updated 15 hours ago

1/1

Property Description

..52-Acre Buildable Lot with Existing Cottage -- North Mianus Nestled at the end of a private road in the desirable North Mianus neighborhood, this .52-acre property offers a rare combination of privacy, potential, and flexibility. Build your own custom home--ideal for builders, investors, or end-users looking to create their dream residence. In addition to the new-construction opportunity, the property includes an existing grandfathered 1-bedroom, 1-bath cottage, perfect for rental income, a guest house, or an in-law suite while the main home is being built. A rare offering in one of Greenwich's most sought-after areas, located within the North Mianus Elementary and Eastern Middle School districts.

Full Property Details

Full Property Details for 9 Walnut St

General

Sold For: $1,375,000
Taxes: $7,487
Status: Closed
Type: Lots/Land
Source: Greenwich
MLS ID: 123887
Added to Site: 330 day(s) ago

Rooms

Bathrooms

Total Bathrooms: 1
Full Bathrooms: 1

Bedrooms

Total Bedrooms: 3

Location

Area: 4 - Cos Cob
County: Fairfield
Driving Directions: Valley Road to Walnut

School Information

Elementary School: North Mianus
Middle School: Eastern Middle

Heating & Cooling

Cooling Type: None
Heating Type: Natural Gas, Hot Water
Heating Fuel: Gas

Utilities

Gas: Public Utility
Sewer: Town Sewer
Water: Public

Structural Information

Architectural Style: Colonial
Construction: Wood Siding
Square Feet: 1,482
Year Built: 1970

Additional Structures

Other Structures: Guest House

Lot Features

Lot Size (Acres): 0.52
Lot Size (Sq. Ft.): 22,651.2
Frontage: Private Road
Zoning: R-12
Lot Description: Level

Financial Considerations

Price Per Acre: $2,875,000
Tax Amount: $7,487

Disclosures and Reports

Property ID: 08-2718/S

Listed by BHHS New England Properties
Sold by Houlihan Lawrence

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— 9 Walnut St —

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Schools

Schools serving 9 Walnut St

School District:Greenwich School District

Name	Grades	Distance
North Mianus School 309 Palmer Hill Rd., Greenwich, CT 06878	K-5	0.8 mi
Eastern Middle School 51 Hendrie Ave., Greenwich, CT 06878	6-8	2.4 mi
Greenwich High School 10 Hillside Road, Greenwich, CT 06830	9-12	2.7 mi

Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 9 Walnut St

Date

Details

Price

Change

Source

8/03/2026

Sold

$1,495,000

—

MLS

4/17/2026

Price Reduced

$1,495,000

-5.08%

MLS

10/27/2025

Listed

$1,575,000

—

MLS

Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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2
Beds
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Total Baths
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Sq. Ft.

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Price Reduced

-$30,000 (-7.59%)

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Apartment
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Updated 17 hours ago

1
Bed
1
Total Bath
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Sq. Ft.

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Sold

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4
Beds
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Total Baths
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Beds
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2
Beds
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Total Baths
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Sq. Ft.

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$1,412,000

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Single Family
Closed

4
Beds
3
Total Baths
3,309
Sq. Ft.

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9 Walnut Street, Greenwich, CT 06807 (MLS# 123887) is a Lots/Land property that was sold at $1,375,000 on August 03, 2026. Want to learn more about 9 Walnut Street? Do you have questions about finding other Lots/Land real estate for sale in Cos Cob? You can browse all Cos Cob real estate or contact a Coldwell Banker agent to request more information.

9 Walnut St Greenwich, CT 06807