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400 South Street, Key West, FL 33040

$8,500,000
Property Type: Residential Bedrooms: 5 Baths: 6 Square Footage: 4,008 Lot Size (sq. ft.): 17,243 Status: Closed
Current Price: $8,500,000 List Date: 7/07/2024 Last Modified: 4/28/2025

Overview

Description

OFFERED IN A LUXURY AUCTION! Experience unparalleled luxury at 400 South Street, the true Southernmost private residence in the Continental United States. This iconic Key West estate, winter home to esteemed American artist, the late Seward Johnson and his wife, seamlessly blends timeless elegance with modern amenities. The expansive 4,008-square-foot concrete home, situated on a generous lot plus almost one acre of bay bottom, offers five bedrooms and five and a half bathrooms. Upon entering, the formal living room evokes the charm of the Hemingway era, leading to a sunlit Florida room with sliding glass doors that open to a vast outdoor oasis. The primary suite and two guest bedrooms are accessible via an elevator, each opening to a large balcony that provides panoramic views of the Atlantic Ocean. The property boasts a magnificent 50 x 20-foot pool and ample lounging areas, perfect for enjoying ocean breezes and observing local birdlife. With its unique location adjacent to the iconic Southernmost Point buoy and proximity to Key West's vibrant attractions, this estate offers an unparalleled living experience. Additionally, a coveted transient license allows for nightly rentals, presenting a prime investment opportunity or the option for a lavish private or corporate compound. Designated Multifamily (could accommodate up to 8 residential units) and located in the historic commercial tourist district, the possibilities are vast for a savvy investor. Part of the property needs complete renovation and the 1930 SF seawall requires partial restoration. THE Southernmost House is a rare gem in the United States! Due diligence package available upon bid registration.

Listing Details MLS# 610694

Location, Tax & Legal

Street #
400
Street Name
South
Street Suffix
Street
Key/Island
Key West
State/Province
FL
Zip Code
33040
County
Monroe
Subdivision
Filer Boyle Sub (1.0)
Area
01 - Key West
KW Neighborhood
Old Town-S of Truman
City
KEY WEST
Mile Marker
1
Marathon Neighborhood
N/A
Side
Ocean
Flood Zone
VE,VE
Alternate Key #
1037222
Parcel #
00036380-000000
Zoning
HCT - Historic Commercial Tourist
Deed Restrictions
Unknown
Legal
KW FILER BOYLE SUB N-476 PT LOTS 2-4 SQR 6 TR 16 AND 1AC N-476 BAY BTM SE G67-13(II DEED 20256) OR92-463 OR295-204/5 OR
Taxes
37168.5
Tax Year
2023
Pub Sewer HkUp
Yes

Contract Information

Listing Board
Key West Association

General Property Description

Realtor.COM Type
Residential - Single Family
Style
Single Family
Waterfront
Yes
Control Depth
3
Pool
Yes
Year Built
1958
Total Units
Yes
Lot SqFt
17243
Lot Sqft Source
Tax Records
Acres
Yes
Living Apx SqFt
4008
SqFt Source
Tax Records
Total Bedrooms
5
Full Baths
5
Half Baths
Yes
Total Baths
6
Rentals Allowed
Yes

Status Change Info

Sold Date
2025-04-25
Sold Comments
Thank you John!

Association Info

Mandatory Home Owners Asc
No
1st Right of Refusal
No
Association Fee $
0

License Info

# of City License
Yes
Transient Rntl Licns
Yes

More Information

Dockage

Dock
Other
Dock Permit
Yes
Seawall
Concrete

Building Style

Above Flood
No
Stories
2 Stories
Split Level
Yes

Vehicle Storage

Car(s)
2
Garage
Yes
Open Parking
Yes
Off Street Parking
Yes

Remarks & Misc

Remarks – Consumer
OFFERED IN A LUXURY AUCTION! Experience unparalleled luxury at 400 South Street, the true Southernmost private residence in the Continental United States. This iconic Key West estate, winter home to esteemed American artist, the late Seward Johnson and his wife, seamlessly blends timeless elegance with modern amenities. The expansive 4,008-square-foot concrete home, situated on a generous lot plus almost one acre of bay bottom, offers five bedrooms and five and a half bathrooms. Upon entering, the formal living room evokes the charm of the Hemingway era, leading to a sunlit Florida room with sliding glass doors that open to a vast outdoor oasis. The primary suite and two guest bedrooms are accessible via an elevator, each opening to a large balcony that provides panoramic views of the Atlantic Ocean. The property boasts a magnificent 50 x 20-foot pool and ample lounging areas, perfect for enjoying ocean breezes and observing local birdlife. With its unique location adjacent to the iconic Southernmost Point buoy and proximity to Key West's vibrant attractions, this estate offers an unparalleled living experience. Additionally, a coveted transient license allows for nightly rentals, presenting a prime investment opportunity or the option for a lavish private or corporate compound. Designated Multifamily (could accommodate up to 8 residential units) and located in the historic commercial tourist district, the possibilities are vast for a savvy investor. Part of the property needs complete renovation and the 1930 SF seawall requires partial restoration. THE Southernmost House is a rare gem in the United States! Due diligence package available upon bid registration.
Directions
Next to the Southernmost Buoy

Fee Includes

None
Yes

Tax Exemptions

Homestead
Yes

Appliances

Dishwasher
Yes
Freezer
Yes
Gas Appliances
Yes
Oven
Yes
Range
Yes
Refrigerator
Yes
Stainless Steel Appliance(s)
Yes

Pets

Pets Allowed
Yes

Cooling

Ceiling Fans(s)
Yes
Central Air
Yes

Heating

Central
Yes

Waterfront

Gulf Front
Yes
Oceanfront
Yes
Open Water
Yes

Waterview

Bay/Gulf View
Yes
Ocean View
Yes
Open Water View
Yes

Floor

Combo
Yes

Neighborhood Feature

Beach
Yes
Bike Paths
Yes

Interior Features

Cathedral Ceilings
Yes
Elevator
Yes
Sky Light(s)
Yes

Specialty Rooms

Sun/Florida Room
Yes
Other
Yes

Windows/Doors

Aluminum Windows
Yes
Sliding Glass Doors
Yes

Construction

CBS
Yes
Concrete
Yes

Land Size

1/4 - 1/2 Acre
Yes

Utilities

FKAA
Yes
Municipal Sewer
Yes
Propane
Yes

Porch/Balcony

Deck
Yes
Open Porch/Balcony
Yes

Exterior Features

Fencing
Yes

Pool Info

In Ground
Yes
Concrete
Yes

Roof

Metal Roof
Yes

Shutters

Accordion
Yes
Roll Down Electric
Yes

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: Gulf Front; Oceanfront; Open Water Waterview: Bay/Gulf View; Ocean View; Open Water View Building Style: Split Level Vehicle Storage: Garage; Off Street Parking; Open Parking Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: FKAA; Municipal Sewer; Propane Interior Features: Cathedral Ceilings; Elevator; Sky Light(s) Specialty Rooms: Sun/Florida Room; Other Appliances: Dishwasher; Freezer; Gas Appliances; Oven; Range; Refrigerator; Stainless Steel Appliance(s) Exterior Features: Fencing Pool Info: In Ground; Concrete Construction: CBS; Concrete Shutters: Accordion; Roll Down Electric Floor: Combo Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Beach; Bike Paths Land Size: 1/4 - 1/2 Acre

Documents

Listing Office: Ocean Sotheby's International Realty
Last Updated: April - 28 - 2025
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.
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