About 646 William Street
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.
Features of 646 William Street
| MLS® # | 621406 |
|---|---|
| Price | $1,400,000 |
| Bedrooms | 3 |
| Bathrooms | 2.00 |
| Full Baths | 2 |
| Square Footage | 1,780 |
| Land Size | 3,920 |
| Year Built | 1928 |
| Type | Residential |
| Sub-Type | Duplex |
| Style | Conch |
| Status | Active |
Community Information
| Address | 646 William Street |
|---|---|
| Area | 02 - Key West |
| Subdivision | Old Town - Unlisted (1.0) |
| City | Key West |
| County | Monroe |
| State | FL |
| Zip Code | 33040 |
Amenities
| Utilities | FKAA |
|---|---|
| Parking | Off Street Parking |
| View | No Waterview |
| Is Waterfront | No |
| Waterfront | None |
| Has Pool | No |
Interior
| Heating | Hot Water |
|---|---|
| Cooling | Wall/Window Unit(s) |
| Fireplace | No |
| Has Basement | No |
Exterior
| Lot Description | Less Than 1/4 Acre |
|---|---|
| Windows | Wood Windows |
| Roof | Metal Roof |
| Construction | Frame |
Additional Information
| Date Listed | September 23rd, 2026 |
|---|---|
| Days on Market | 3 |
| Zoning | HHDR - Historic High Density Residential |
| Short Sale | No |
| RE / Bank Owned | No |
Listing Details
| Agent | Louis M Paez |
|---|---|
| Office | Coldwell Banker Schmitt Real Estate Co. (KW) |