409 William St, Key West, FL 33040
Property image
Property image
OFF MARKET

409 William St
Key West, FL 33040

Historic Seaport
  • 3 Beds
  • 3.5 Baths
  • 3,226 sqft

$4,081,200

Trulia Estimate
as of Jul 24, 2026
Est. Refi. Payment $23,738/mo*
Refinance Your Home

$4,081,200

Trulia Estimate
as of Jul 24, 2026
Est. Refi. Payment $23,738/mo*
Refinance Your Home
3 Beds
3.5 Baths
3,226 sqft

Local Information

  • Map ViewExplore the area around 409 William St.
  • Schools1 Preschool School2 Elementary Schools1 Middle School2 High Schools
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1908
Living Area
3,226 sqft
Price/Sqft
$1,265

About this House

This single-family home is located at 409 William St, Key West, FL. 409 William St is in the Historic Seaport neighborhood in Key West, FL and in ZIP code 33040. This property has 3 bedrooms, 4 bathrooms and approximately 3,226 sqft of floor space. This property has a lot size of 4356 sqft and was built in 1908.
409 William St, Key West, FL 33040 is a 3 bedroom, 4 bathroom, 3,226 sqft single-family home in Historic Seaport, built in 1908. It last sold for $3,400,000 on Jul 23, 2021. It is currently off market. The Trulia Estimate is $4,081,200, with a rent estimate of $7,886/month.

Home Details for 409 William St

Interior Features

Heating & Cooling
Heating: OtherAir ConditioningCooling System: CentralHeating Fuel: Other
Interior Details
AtticTypes of Rooms: Walk In Closet
Appliances & Utilities
Cable ReadyDishwasherRefrigeratorWasher
Levels, Entrance, & Accessibility
Floors: Tile, Hardwood
Security
Security System

Exterior Features

Exterior Home Features
Roof: MetalDeckExterior: OtherFoundation Type: ConcretePorch
Pool
Pool
Parking & Garage
Parking Space: 1Parking: Off Street

Property Information

Year Built
Year Built: 1908Year Updated: 2003
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Rental Terms, Policies & Fees

Furnished

Community

Units in Building: 1

Lot Information

Lot Area: 4168 sqft

Price History for 409 William St

DatePriceEventSource
07/23/2021$3,400,000Sold
FLKMLS #596416
06/24/2021$3,595,000ContingentFLKMLS #596416
06/09/2021$3,595,000Listed For SaleFLKMLS #596416
05/20/2019$3,450,000ListingRemovedAgent Provided
11/19/2018$3,450,000Listed For SaleAgent Provided
06/22/2016$2,850,000Sold
FLKMLS #123254
05/07/2016$2,950,000PendingAgent Provided
04/28/2016$2,950,000Listed For SaleAgent Provided
04/26/2010$1,700,000Sold
N/A
06/13/2005$2,000,000Sold
N/A
09/02/2003$1,300,000Sold
N/A

Market trends in Key West

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$1.23M
$20.83KMoM
Sale-to-List Price
94.6%
0.3%MoM
Price per sq ft
$958
$15MoM
Available listings
288
17MoM
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$27,371
Assessment$3,259,138
Home facts updated by county records

Comparable Sales for 409 William St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
728 Love Ln, Key West, FL
0.12
Single-Family Home
$3,150,000
09/19/25
3
3
2,100
418 William St, Key West, FL
0.04
Single-Family Home
$3,285,000
03/18/26
4
3
1,852
906 Southard St, Key West, FL
0.18
Single-Family Home
$3,250,000
05/27/26
3
3
2,188
1020 Southard St, Key West, FL
0.27
Single-Family Home
$3,350,000
12/03/25
3
3.5
2,438
517 Elizabeth St, Key West, FL
0.13
Single-Family Home
$3,750,000
10/20/25
4
3
2,173
510 Margaret St, Key West, FL
0.10
Single-Family Home
$2,850,000
04/17/26
4
4
1,968
312 Margaret St, Key West, FL
0.11
Single-Family Home
$2,295,000
04/15/26
3
3
1,916
1006 & 1008 Fleming St, Key West, FL
0.08
Single-Family Home
$4,425,000
05/26/26
4
4.5
3,336
626 Grinnell St, Key West, FL
0.26
Single-Family Home
$2,675,000
04/17/26
2
3
2,940
715 Frances St, Key West, FL
0.37
Single-Family Home
$3,400,000
11/07/25
3
3.5
1,890

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 409 William St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Historic Seaport
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Historic Seaport

At least 38 Trulia users voted on each feature.

  • 92 % Say it's dog friendly

  • 90 % Say people would walk alone at night

  • 88 % Say it's walkable to restaurants

  • 84 % Say it's walkable to grocery stores

  • 83 % Say there are sidewalks

  • 79 % Say streets are well-lit

  • 67 % Say yards are well-kept

  • 64 % Say they plan to stay for at least 5 years

  • 62 % Say there's holiday spirit

  • 60 % Say there's wildlife

  • 59 % Say there are community events

  • 57 % Say it's quiet

  • 43 % Say parking is easy

  • 42 % Say neighbors are friendly

  • 35 % Say kids play outside

  • 30 % Say car is needed

Sourced by Trulia users. Learn more about our methodology.
  • Mari.lindsley
    "I've lived here for 2 years and enjoy the walkability to local theatres and restaurants. There's a strong homeless contingency that detracts from the seaport. But you can't blame them for wanting to be in paradise."
    11
    Flag
  • Tom
    "There are many festivals and events that include the Key West Historic Harbor. Venues include Schooner Wharf, Waterfront Brewery, The Marker, etc.."
    2
    Flag
  • Bwruble
    "Tourist don’t clean up after their dogs, but locals do. This is a wonderful neighborhood. Gecko lane is especially beautiful and very private. "
    1
    Flag
  • Ctmortman
    "Perfect place for dogs. There are several dog pearls on the island and some restaurants are pet friendly. I own a dog watching business on Marco Island...a service much needed there"
    2
    Flag
  • Sue S.
    "We vacationed here for the month of February 2014. We did not rent a car but had bikes for a week. We are walkers and walked an average of 1-2 miles for dinner and many miles during the day touring, hiking, etc. This area is accessible to most anything."
    1
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

18 pet-friendly rentals in Key West, FL

Explore by feature - Garage

8 rentals with a garage in Key West, FL

Explore by feature - Air Conditioning

99 rentals with air conditioning in Key West, FL

Explore by feature - Pool

68 rentals with a pool in Key West, FL

Explore by feature - Washer/dryer

72 rentals with a washer/dryer in Key West, FL

Explore by feature - Outdoor Space

12 rentals with an outdoor space in Key West, FL

Homes for sale near 409 William St

Skip to last item
Skip to first item

Off Market Homes Near 409 William St

Skip to last item
Skip to first item