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Sold for $4,300,000
  • $4,300,000

    406 United St, Key West, FL 33040

    4beds
    3,624sqft
    Single Family Residence
    Built in 1938
    5,227 Square Feet Lot
    $4,321,200 Zestimate®
    $1,187/sqft
    $7,720 Estimated rent

    Home value

    $4,321,200

    $3.85M - $4.84M

    $7,720/mo

    Zestimate® history
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    What's special

    Fully furnishedPrivate island oasisHeated saltwater poolUpdated systemsGranite countertopsSeparate hot tubCovered off-street parking
    A Grand Historic Masterpiece! Few residences capture the true spirit of Old Town Key West quite like 406 United Street. Rooted in one of the island's most defining eras of growth and prosperity, this remarkable home is a celebration of historic craftsmanship, generous scale, and timeless value. Spanning 3,624 square feet, this 4bedroom, 4.5bath residence offers exceptional versatility, perfect for full-time living, a luxurious vacation retreat, or hosting extended family & guests. The home is being offered fully furnished, allowing for effortless enjoyment from day one. Each bedroom is spacious and thoughtfully designed with its own en suite bath, providing privacy and comfort throughout. Soaring ceilings, transom windows, and original Dade County pine walls honor the home's heritage, while modern upgrades including updated systems, surround sound, and security features blend historic charm with contemporary convenience. The chefs eat-in kitchen is both elegant and functional, featuring Viking appliances, granite countertops, and a layout ideal for entertaining. Sun-filled living spaces flow beautifully through expansive impact glass doors to the outdoors, where a heated saltwater pool and separate hot tub are surrounded by lush tropical landscaping, irrigation, and ambient lighting creating a private island oasis. Upstairs, the primary suite is a true retreat, showcasing vaulted ceilings and a spa-inspired bath with a soaking tub, multiple shower heads and dual vanities. An additional upstairs en-suite offers its own private entrance and balcony, providing flexibility for guests or extended stays. Just one block from Duval St. & the iconic Southernmost Point, with covered off-street parking, it's within walking distance to the very best of Key West's dining, nightlife, & culture. This is a rare opportunity to own a historically significant home that lives expansively, entertains effortlessly, and embodies the charm that makes Key West truly unlike anywhere else!

    Zillow last checked:

    Listing updated:

    Listed by:

    Terri Spottswood 305-587-3407,

    Truman & Co. (KW),

    The Spottswood Team 305-432-4848,

    Truman & Co. (KW)

    Bought with:

    Timothy Swanson, 3474561

    The Agency Florida Keys

    Source: FLKMLS,MLS#: 617845MLS Logo

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 4
    • Bathrooms: 5
    • Full bathrooms: 4
    • 1/2 bathrooms: 1
    Heating
    • Has Heating (Unspecified Type)
    Cooling
    • Central Air, Ceiling Fans(s)
    Appliances
    • Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Gas Appliances, Wine Cooler, Stainless Steel Appliance(s)
    • Laundry: Laundry Room
    Features
    • Built-in Features, Granite Counters, Dade County Pine, Walk-in Closet(s), Bar, Wired for Sound
    • Flooring: Tile, Wood
    • Furnished: Yes
    Interior area
    • Total structure area: 3,624
    • Total interior livable area: 3,624 sqft

    Property

    Features
    • Patio & porch: Open Porch/Balcony, Patio, Lanai
    • Exterior features: Lighting, Water Display
    • Has private pool: Yes
    • Pool features: In Ground, Salt Water, Concrete
    • Has spa: Yes
    • Spa features: Heated
    • Fencing: Fenced
    Lot
    • Size: 5,227 Square Feet
    Details
    • Parcel number: 00036110000000
    • Zoning: HCT - Historic Commercial Tourist
    • Other equipment: Irrigation Equipment

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Conch
    • Property subtype: Single Family Residence
    Materials
    • Frame
    Condition
    • Year built: 1938

    Utilities & green energy

    • Utilities for property: Cable Available

    Community & HOA

    Community
    • Security: On Premises System
    • Subdivision: Filer Boyle Sub (1.0)
    HOA
    • Has HOA: No
    • Services included: None
    Location
    • Region: Key West

    Financial & listing details

    • Price per square foot: $1,187/sqft
    • Tax assessed value: $3,285,085
    • Annual tax amount: $27,584
    • Date on market: 12/27/2025
    • Listing terms: Cash,Conventional

    Price history

    DateEventPrice
    4/9/2026Sold$4,300,000-8.5%$1,187/sqft
    Source: FLKMLS #617845 Report a problem
    4/7/2026Pending sale$4,699,000$1,297/sqft
    Source: FLKMLS #617845 Report a problem
    3/10/2026Contingent$4,699,000$1,297/sqft
    Source: Key West AOR #617845 Report a problem
    12/27/2025Listed for sale$4,699,000+4.4%$1,297/sqft
    Source: FLKMLS #617845 Report a problem
    7/19/2024Listing removed--
    Source: Owner Report a problem
    1/21/2024Listed for sale$4,499,000+12.5%$1,241/sqft
    Source: Owner Report a problem
    1/30/2023Sold$4,000,000-11.1%$1,104/sqft
    Source: FLKMLS #603483 Report a problem
    1/28/2023Pending sale$4,500,000$1,242/sqft
    Source: FLKMLS #603483 Report a problem
    1/16/2023Contingent$4,500,000$1,242/sqft
    Source: FLKMLS #603483 Report a problem
    12/20/2022Listed for sale$4,500,000+95.7%$1,242/sqft
    Source: FLKMLS #603483 Report a problem
    3/20/2018Sold$2,300,000-1.1%$635/sqft
    Source: Public Record Report a problem
    2/2/2018Price change$2,325,000-5.1%$642/sqft
    Source: CENTURY 21 Schwartz Realty #577120 Report a problem
    10/19/2017Listed for sale$2,450,000-1%$676/sqft
    Source: Century 21 Schwartz Realty- KeyWest #577120 Report a problem
    8/23/2017Listing removed$2,475,000$683/sqft
    Source: Berkshire Hathaway Knight & Gardner Realty (KW) #123092 Report a problem
    6/2/2017Price change$2,475,000-2%$683/sqft
    Source: Berkshire Hathaway Knight & Gardner Realty (KW) #123092 Report a problem
    1/25/2017Price change$2,525,000-2.7%$697/sqft
    Source: Berkshire Hathaway Knight & Gardner Realty (KW) #123092 Report a problem
    4/21/2016Listed for sale$2,595,000+29.8%$716/sqft
    Source: Prudential Knight & Gardner Realty (KW) #123092 Report a problem
    2/21/2008Sold$2,000,000+11.1%$552/sqft
    Source: Public Record Report a problem
    6/22/2004Sold$1,800,000+89.5%$497/sqft
    Source: Public Record Report a problem
    11/6/2001Sold$950,000$262/sqft
    Source: Public Record Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$27,584 +0.2%$3,285,085 +0%
    2024$27,523 +66.5%$3,284,141 +67.4%
    2023$16,530 +4.4%$1,962,357 +3%
    2022$15,831 -2.7%$1,905,201 +3%
    2021$16,270 -0.3%$1,849,710 -0.5%
    2020$16,311 $1,859,657 -3.2%
    2019$16,311 -4%$1,921,030 -3.7%
    2018$16,995 -7.5%$1,994,206 -13.9%
    2017$18,378 -3.8%$2,316,043 +35.8%
    2016$19,100 +12.4%$1,706,097 +5.9%
    2015$16,986 $1,611,077
    Find assessor info on the county website

    Neighborhood: Upper Duvall

    Nearby schools

    GreatSchools rating
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    Estimated market value
    $4,321,200
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    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $4,321,200