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3 Beds
2 Baths
1,780 sqft

$1,400,000

646 William Street, KEY WEST FL, 33040

Price per sqft$786.52
Built in1928
Property size1,780 sqft
Property typeTownhomes

Overview

Active

Listed Sep 24, 2026

Updated 3 days ago

644 William Street The property being sold is 644 William Street. The current property record/card reflects both 644 and 646 William Street, although the property being conveyed is 644 William Street. The structure at 644 William Street is a two-and-a-half-story home currently configured as a duplex and is in need of renovation. The first floor consists of two bedrooms and two bathrooms. The second floor contains two bedrooms and one bathroom. A stairwell provides access to the third floor, which is currently unfinished and is not completed or configured as living space. In its current condition, the property contains four bedrooms and three bathrooms of finished living area, with additional unfinished space on the third floor. The property is currently being used/configured as a duplex and will require renovation.

$9,314/mo

Est. mortgage payment based on a $1,400,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
621406
Available since
September 24, 2026

Interior Features

Bedrooms
3
Bathrooms
2
Basement
No

Exterior Features

Lot Size
0.09 Acres

 

Courtesy of Louis Paez

Based on information from DASH - Coldwell Banker (CB) as of 10/10/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. 

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Data last updated 8:44 AM UTC, 10/10/2026

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