About This Home

This 3-bedroom, 2-bathroom multi-family at 646 William Street in Key West, FL is listed for $1,400,000 ($787 per sqft). Built in 1928, the home offers 1,780 sqft of living space on a 0.09 acres lot.

Key Features

  • Built in 1928
  • 0.09 acre lot

Property Details

2 full
1928

Amenities

ViewA/C
Listing Description

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.

Monthly Cost Estimate

$7,487/mo

20% down · 6.5% · 30 years

Principal$1,012
Interest$6,067
Insurance$408

Estimates only. Actual payments may vary.

Location

646 William Street

Key West, FL 33040

Old Town - Unlisted (1.0)

Property Details

Flooring

Combo

Construction

Frame

Views

Water

Outdoor Features

Porch

Parking

Off Street

Heating

Hot Water(Heating)

Cooling

Window Unit(s)Wall/Window Unit(s)

Questions & Answers

This 3-bedroom, 2-bathroom multi-family at 646 William Street is listed at $1,400,000 ($787/sqft). The estimated monthly payment is $7,487 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 1928, 0.09 acre lot.

This property is listed by Louis M Paez and can be reached at 3053951081.

LP

Louis M Paez

Agent at Coldwell Banker Schmitt Real Estate Co. (KW)

(305) 395-1081

Listed by Coldwell Banker Schmitt Real Estate Co. (KW) · Broker phone: (305) 296-7727 · View on Broker Site · Broker website

MLS# 621406· Source: Key West Association of Realtors· 17 days on PropertySimple

Copyright © 2026 Key West Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

646 William Street, Key West, FL 33040

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