Southernmost House
Hotel, 3-star1400 Duval Street, Key West, Florida, 33040, Key West, FL, United StatesShow on map
Top rated
Guests rate it highest for location, service and cleanliness.
9.2227Reviews- Check-in from 4:00 PMCheck-out by 11:00 AM.
- Exceptional locationGuests rate the location 9.7 out of 10, at 1400 Duval Street, Key West, Florida, 33040.
- Breakfast availableIncluded on some rates — the board is shown on each room.
Outdoor Pool and Terrace Enjoy the outdoor pool and soak up the sun on the terrace while taking in the picturesque view of the garden.
Dining with a View Indulge in delicious meals at Seaside Cafe at Mansion with its ocean view and bar/lounge. Don't miss out on the room service and unwind with a refreshing drink at the poolside bar.
Convenience and Comfort Experience a cozy stay in the 18 air-conditioned rooms featuring flat-screen TVs, premium bedding, and designer toiletries. Take advantage of amenities like complimentary breakfast and concierge services during your stay.
Embark on a memorable getaway at The Mansion on the Sea - Southernmost House in the USA. Book your stay now and immerse yourself in the charm of Key West!
What this place offers
- Gift shops or newsstand
- Shopping on site
- Golfing nearby
- Snorkeling nearby
- Bicycle rentals nearby
- Kayaking nearby
- Sailing nearby
- Scuba diving nearby
- Water skiing nearby
- Television in common areas
Rooms
9.2
Top rated
Rated 9.2 out of 10 by 227 guests who stayed here.
- Cleanliness9.2
- Service9.7
- Location9.7
- Rooms9.1
- Amenities9.0
- Value8.4
- Food & drink9.2
Guests mention
Excellent serviceBeautiful location
K81RHpeggykGreat memories.
Great location and wonderful staff. Many fun restaurants and bars as well as many options for more upscale dining.
tangelleLAFAYETTE, LAFAYETTE PARISH, LOUISIANALong weekend at the house
Spent a long weekend at the house. Great atmosphere and lots of history. Great location and the view is awesome. The staff is good and for the most part is supportive. The room shows its age as the dehumidifier runs non…
dbr3000CINCINNATI, OHIOPerfect stay at Southernmost House
My girlfriend & I just got back home from a stay at Southernmost House, 3/19-22/26. We went to Key West for my bday, and our experience couldn’t have been better. We stayed in rm 108 across the brick street from the main…
paulmK9993XGPaul and Nancy's vacation
This was our third stay at this property and as always we were well satisfied. This is a great site with a great deal of historical significance. Everyone from Presidents to World leaders and some not so great people…
sjderesBeautiful hotel but beds need upgrade
The mansion house was beautiful very well kept with tons of historic features and artwork inside. The pool was also very nice. Free bottled water was included throughout the stay. We really enjoyed sitting at the…
stacyc103SAINT PAUL, MINNESOTAFantastic experience at an iconic Key West landmark!
Aside from the beautiful architecture, history and perfect location (beach + Duval St), the rooms are clean and elegant, and the service outstanding. Elia gave us a great check-in experience (so helpful after a long…
Reviews are written by guests who booked through our supplier and stayed, shown as written and in their own language. Category scores are the supplier’s reading of recent reviews, updated January 2026.
Where you’ll be
1400 Duval Street, Key West, Florida, 33040, Key West, FL, United States
Guests rate the location 9.7 out of 10 — exceptional.
Things to know
Cancellation
Each room shows its own terms before you pay.
Most rates can be cancelled free until a date shown on the room.
Non-refundable rates are marked as such.
House rules
Check-in from 4:00 PM until 10:00 PM
Check-out by 11:00 AM
No children
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No pets
The front desk is open daily from 8:00 AM - 10 PM. If you are planning to arrive after 8:00 PM please contact the property in advance using the information on the booking confirmation. The front desk is staffed during limited hours.
Pets. Pets not allowed
Noise policy. Noise-free rooms not guaranteed
Check-in & Check-out. Contactless check-out is available
Guest type. Essential workers only - NO
Accessibility. No elevators
Guest type. Caters to adults only
Children and extra beds. Children not allowed
General. Professional property host/manager
Check-in & Check-out. Contactless check-in is available
Children and extra beds. No cribs (infant beds) available
Payment & property
Paid when you book, not at the desk.
Rates include the taxes and fees we can read.
The property may take a card at check-in for incidentals.
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Pool access available from 8:00 AM to 10:00 PM.Children 18 years old and younger are not permitted at this adults-only property. Only registered guests are allowed in the guestrooms. Cashless payment methods are available for all transactions. A deposit may be required at the property.
What we’d check for you here
- That the step-free room is actually free on your dates, and whether it is a roll-in shower or a bath, which the listing never says.
- Whether there is room for a pickup, a trailer or a van, not just a car.
- Whether breakfast is in the rate or added at checkout, and what time it runs.
- Whether the rate moves for your dates, and what it includes.
- What the property actually charges at the desk on top of the rate.
Questions about Southernmost House
What time is check-in and check-out at Southernmost House?
Check-in is from 4:00 PM. Check-out is by 11:00 AM. If you're arriving late, tell us and we'll ask the property to hold the room.
Does Southernmost House allow pets?
No — the property states that pets are not allowed.
Is there parking at Southernmost House?
Parking is listed among the property's facilities. Whether it's free and whether a space can be reserved varies, so we check it against your dates rather than promise it here.
Does Southernmost House have a pool?
Yes — a pool is listed among the property's facilities. Seasonal closures are common, so we'll confirm it's open for your dates.
Is breakfast included at Southernmost House?
Breakfast is offered at the property. Whether it's included depends on the rate — the board type is shown on each room once you put your dates in.
Does Southernmost House have wheelchair accessible rooms?
The property lists step-free or accessible facilities. That flag is the one least able to settle the question: a hotel can carry it and still have a step at the entrance, or a bath rather than a roll-in shower, and it does not say whether the accessible room is free on your dates. Tell us what you need and we'll ask the property directly rather than reading you the flag.
How do I book Southernmost House?
Put your dates in above and book online, or call (888) 789-8585 and we'll do it for you — including things a booking form can't handle, like a block of rooms, a monthly rate or an invoice for your employer.
Where is Southernmost House?
1400 Duval Street, Key West, Florida, 33040, Key West, FL.
Other places we book in Key West
Nothing to do with the booking above. The same market, priced the same way, for if this one is not it.
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