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Southernmost House

4.0 star property
The Mansion on the Sea offers a peaceful oceanfront escape near South Beach, where guests can relax by the pool or explore the nearby butterfly conservatory.

Choose dates to view prices

The Mansion on the Sea - Southernmost House in the USA is steps from South Beach. Enjoy a continental breakfast at the Seaside Cafe, ocean views, and poolside lounging. On-site shopping adds convenience, and the Key West Butterfly and Nature Conservatory is nearby.

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Free WiFi
  • Air conditioning
  • Parking available
The current price is NT$22,743
NT$28,521 total
includes taxes & fees
Feb 16 - Feb 17

Room options

Available filters for rooms
Showing 9 of 9 rooms

View all photos for Premium Ocean View King

Premium Ocean View King | Premium bedding, pillowtop beds, individually furnished

Premium Ocean View King

8.8 out of 10
Excellent
(3 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 300 sq ft
  • Sleeps 2
  • 1 King Bed
  • Ocean view

View all photos for Ocean View King

Ocean View King | Premium bedding, pillowtop beds, individually furnished

Ocean View King

9.4 out of 10
Exceptional
(10 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 500 sq ft
  • Sleeps 2
  • 1 King Bed
  • Ocean view

View all photos for Courtyard view King

Courtyard view King | Premium bedding, pillowtop beds, individually furnished

Courtyard view King

10.0 out of 10
Exceptional
(2 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 500 sq ft
  • Sleeps 2
  • 1 King Bed

View all photos for Premium Ocean View Bungalow King with Kitchenette

Premium Ocean View Bungalow King with Kitchenette | Premium bedding, pillowtop beds, individually furnished

Premium Ocean View Bungalow King with Kitchenette

Highlights

Deck/patio
Separate sitting area
Individually furnished
Air conditioning
Kitchenette
Refrigerator
HDTV
Pillowtop bed
  • 500 sq ft
  • Sleeps 2
  • 1 King Bed and 1 Queen Sofa Bed OR 1 King Bed
  • Ocean view

View all photos for Pool View Bungalow Queen with Kitchenette

Pool View Bungalow Queen with Kitchenette | Premium bedding, pillowtop beds, individually furnished

Pool View Bungalow Queen with Kitchenette

8.4 out of 10
Very good
(6 reviews)

Highlights

Patio
Individually furnished
Air conditioning
Kitchenette
Refrigerator
HDTV
Pillowtop bed
Premium bedding
  • 400 sq ft
  • Sleeps 2
  • 1 Queen Bed and 1 Double Sofa Bed

View all photos for Courtyard View 2 Queen

Courtyard View 2 Queen | Premium bedding, pillowtop beds, individually furnished

Courtyard View 2 Queen

9.4 out of 10
Exceptional
(10 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 500 sq ft
  • Sleeps 2
  • 2 Queen Beds

View all photos for Partial Ocean View King

Partial Ocean View King | Premium bedding, pillowtop beds, individually furnished

Partial Ocean View King

9.6 out of 10
Exceptional
(9 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 500 sq ft
  • Sleeps 2
  • 1 King Bed
  • Partial ocean view

View all photos for Courtyard view Queen ADA

Courtyard view Queen ADA | Premium bedding, pillowtop beds, individually furnished

Courtyard view Queen ADA

7.2 out of 10
Good
(5 reviews)

Highlights

Balcony or patio
Individually furnished
Air conditioning
Mini-fridge
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
  • 500 sq ft
  • Sleeps 2
  • 1 Queen Bed

View all photos for 1-Bedroom Suite with Full Kitchen

1-Bedroom Suite with Full Kitchen | Premium bedding, pillowtop beds, individually furnished

1-Bedroom Suite with Full Kitchen

10.0 out of 10
Exceptional
(1 review)

Highlights

Separate dining area
Separate sitting area
Individually furnished
Air conditioning
Kitchen
Full-sized refrigerator/freezer
Dishwasher
HDTV
  • 700 sq ft
  • 1 bedroom
  • Sleeps 2
  • 1 King Bed and 1 Queen Sofa Bed

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About the neighborhood

Located in Old Town Key West, a neighborhood in Key West, Southernmost House is in the entertainment district and on the waterfront. Duval Street and Southernmost Point are notable landmarks, and the area's natural beauty can be seen at South Beach and Fort Zachary Taylor Historic State Park. Don't miss out on a visit to Key West Butterfly and Nature Conservatory. With kayaking, scuba diving, and snorkeling nearby, you'll find plenty of adventures in the water. Visit our Key West travel guide
Map
1400 Duval Street, Key West, FL, 33040

What's nearby

  • Duval Street featuring signage
    Duval Street
    1 min walk - 0.0 km
  • South Beach featuring a sandy beach and general coastal views as well as a small group of people
    South Beach
    1 min walk - 0.1 km
  • Key West Butterfly and Nature Conservatory featuring zoo animals, animals and flowers
    Key West Butterfly and Nature Conservatory
    1 min walk - 0.1 km
  • Southernmost Point showing signage
    Southernmost Point
    2 min walk - 0.2 km
  • Ernest Hemingway Home and Museum featuring heritage elements and a house
    Ernest Hemingway Home and Museum
    8 min walk - 0.7 km

Getting around

  • Key West Intl. Airport (EYW)
    9 min drive

Restaurants

  • Seaside Cafe at the Mansion
    1 min walk
  • Southernmost Beach Café
    1 min walk
  • Southernmost Point Bar in the USA
    5 min walk
  • Banana Cafe
    3 min walk
  • La Te Da
    4 min walk

About this property

Southernmost House

Upscale hotel near Southernmost Point
Located close to Key West Butterfly and Nature Conservatory and South Beach, Southernmost House provides free continental breakfast, a terrace, and a bar. The on-site restaurant, Seaside Cafe at Mansion, offers lunch, dinner, and ocean views. Stay connected with free in-room WiFi.
Other perks at this hotel include:
  • An outdoor pool along with sun loungers and pool umbrellas
  • Self parking (surcharge), smoke-free premises, and outdoor furniture
  • Multilingual staff, coffee/tea in the lobby, and free newspapers
  • Guest reviews speak highly of the helpful staff, first-rate property condition, and location
Room features
All guestrooms are individually furnished, and include comforts such as premium bedding and air conditioning, in addition to thoughtful touches like free WiFi and free newspapers.
More amenities include:
  • Designer toiletries, showers, and hair dryers
  • 42-inch HDTVs with streaming services and premium channels
  • Coffee/tea makers and daily housekeeping

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NT$18,174 total
includes taxes & fees
Jan 26 - Jan 27
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Property amenities

Internet

  • Available in all rooms: Free WiFi
  • In-room WiFi speed: 100+ Mbps (good for 1–2 people or up to 6 devices)
  • Available in some public areas: Free WiFi

Parking and transportation

  • Self parking on site (USD 25 per night)

Food and drink

  • Free continental breakfast available daily 8:00 AM to 10:00 AM
  • A bar/lounge
  • A restaurant
  • Coffee and tea in common areas

Restaurants on site

  • Seaside Cafe at Mansion

Things to do

  • Outdoor pool

Conveniences

  • Free newspapers in lobby
  • Limited-hour front desk

Guest services

  • Housekeeping (daily)
  • Multilingual staff

Outdoors

  • On the waterfront
  • Outdoor furniture
  • Picnic area
  • Pool loungers
  • Pool umbrellas
  • Terrace

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Grab bar in shower
  • Grab bar near toilet
  • Hand-held showerhead
  • No elevator

More

  • 2 buildings
  • 3 floors
  • Built in 1897
  • Smoking not allowed
  • Victorian architecture

Room amenities

Bedroom

  • Pillowtop mattress
  • Premium bedding

Bathroom

  • Designer toiletries
  • Hair dryer
  • Shampoo
  • Shower
  • Soap
  • Toilet paper
  • Towels provided

Entertainment

  • 42-inch flat-screen TV with premium cable channels
  • Streaming services

Food and drink

  • Coffee/tea maker

More

  • Air conditioning
  • Free daily newspapers
  • Individual furnishings
  • Iron/ironing board

Policies

Check-in

Check-in start time: 4 PM; Check-in end time: 10 PM
Late check-in subject to availability
Minimum check-in age: 21

Check-out

Check-out before 11 AM

Special check-in instructions

The front desk is open daily from 8:00 AM - 10 PM
Front desk staffed during limited hours
If you are planning to arrive after 8:00 PM please contact the property in advance using the information on the booking confirmation
Information provided by the property may be translated using automated translation tools

Access methods

Front desk (limited hours)

Pets

Pets not allowed

Children and extra beds

Children younger than 18 are not allowed at this adults-only property; all guests 18 and older are welcome
Cribs (infant beds) are not available

Property payment types

Important information

Optional extras

  • Self parking fee: USD 25 per night

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
Minimum Spring Break check-in age is 24 years old
This property accepts credit cards; cash is not accepted
Cashless transactions are available
Noise-free guestrooms cannot be guaranteed
Safety features at this property include a carbon monoxide detector, a fire extinguisher, and a smoke detector
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room

We should mention

This property does not have elevators
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

Property is also known as

Southernmost House
Southernmost House Hotel
Southernmost House Hotel Key West
Southernmost House Key West
Southernmost House
The Southernmost House Hotel
The Southernmost House Hotel Adults Only
The Mansion on the Sea Southernmost House in the USA
The Mansion on the Sea - Southernmost House in the USA Hotel
The Mansion on the Sea - Southernmost House in the USA Key West

Frequently asked questions

Does Southernmost House have a pool?

Yes, this property has an outdoor pool. Pool access is from 8:00 AM–10:00 PM.

How much does it cost to stay at Southernmost House?

As of 2026/1/23, prices found for a 1-night stay for 2 adults at Southernmost House on 2026/2/16 start from NT$22,743, excluding taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Is Southernmost House pet-friendly?

No, pets are not allowed at this property.

How much is parking?

Self parking is available for USD 25 per night.

What time is check-in at Southernmost House?

Check-in start time: 4 PM; Check-in end time: 10 PM. Late check-in is available during limited hours.

What time is check-out at Southernmost House?

Check-out is at 11 AM.

Where is Southernmost House located?

Located in Old Town Key West, this beach hotel is steps from Southernmost Point, Duval Street, and South Beach. Key West Butterfly and Nature Conservatory and Ernest Hemingway Home and Museum are also within 10 minutes.

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Reviews

Southernmost House Reviews

9.4

Exceptional

9.6

Cleanliness

9.6

Location

9.6

Staff & service

9.0

Property conditions & facilities
Rating 10 - Excellent. 773 out of 1000 reviews
Rating 8 - Good. 144 out of 1000 reviews
Rating 6 - Okay. 55 out of 1000 reviews
Rating 4 - Poor. 20 out of 1000 reviews
Rating 2 - Terrible. 8 out of 1000 reviews

Reviews

10/10 Excellent

Noelle

Liked: Cleanliness, amenities, property conditions & facilities
Good staff, clean room, nice breakfast, good location
Stayed 6 nights in Jan 2026

10/10 Excellent

Jacob

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great place to stay. Staff was very friendly
Stayed 2 nights in Dec 2025

10/10 Excellent

Kathleen

Liked: Cleanliness, amenities, property conditions & facilities
Room spotless and staff were wonderful!
Stayed 3 nights in Dec 2025

10/10 Excellent

Judith

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff was so friendly and really worked together last me a family. Very hospitable!
Stayed 3 nights in Jan 2026

10/10 Excellent

John

Liked: Cleanliness, amenities, property conditions & facilities
This property is beautiful and interesting for its rich history. The cottage rooms are right on the water. Staff is amazing and the breakfast is delicious from local bakery.
Stayed 3 nights in Dec 2025

10/10 Excellent

Willie

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great place with excellent staff.
Stayed 5 nights in Oct 2025

10/10 Excellent

Renitia

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
What a gorgeous property, the mansion is gorgeous and the views were awesome. It was so nice to walk out of the property and enjoy all that Duvall street has to offer without ever needing our car.
Stayed 1 night in Dec 2025

8/10 Good

Fanny Sarah

Liked: Cleanliness, amenities
Beautiful area , hotel right on the beach
Stayed 1 night in Jul 2025

10/10 Excellent

Matthew

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The historic feel of the mansion makes it quite romantic and quaint. We loved our stay. And the staff was fabulous!
Stayed 1 night in Sep 2025

10/10 Excellent

Nathan

Liked: Cleanliness, amenities, property conditions & facilities
Room was nice especially considering the age of the house. Staff was super friendly and helpful. Lobster pizza at the attached bar was awesome! On the quiet end of Duval street so it was very relaxing when we wanted it to be, but we would walk to the other end to explore, drink, eat etc.
Stayed 6 nights in Aug 2025

10/10 Excellent

Ilija

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
It is historic hotel with great access to Duval St. It is on the shore. Perfect place to watch both sunrise AND sunset. Clean, good breakfast, nice staff.
Stayed 4 nights in Oct 2025

10/10 Excellent

Leslie

Liked: Amenities
Great location and great room!
Stayed 1 night in Jun 2025

10/10 Excellent

Leslie

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Fantastic location with friendly staff
Stayed 3 nights in Jun 2025

10/10 Excellent

Jeffrey Michael

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The Southernmost House, was beautiful, and the staff was wonderful. The complimentary breakfast was very good and had many options to choose from. They always had cold bottles of water for all who stayed there, and the outside porches were just wonderful to relax on at all times of the day
Stayed 4 nights in Sep 2025

10/10 Excellent

Cheryl

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Will definitely be coming back. We loved Dean. The room was beautiful and clean. Beautiful breakfast. Loved it!
Stayed 4 nights in Oct 2025

10/10 Excellent

Mike

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Heaven at the end of Duval St.

Perfect location with a great ocean view. The rooms are gorgeous. The pool is perfect for and end of the day swim.
Stayed 5 nights in Aug 2025

8/10 Good

Ian

Liked: Staff & service, amenities
The history of the Mansion on the Sea and its location make it worth staying there.
Stayed 5 nights in Apr 2025

10/10 Excellent

Carla

Liked: Amenities, property conditions & facilities
Beautiful property-very clean,gorgeous views and easy walkability!
Stayed 3 nights in Jun 2025

10/10 Excellent

Jason M

Liked: Cleanliness, property conditions & facilities
Great historical place to stay. Staff is amazing. Couldn’t ask for more.
Stayed 3 nights in Jul 2025

10/10 Excellent

Dawn

Liked: Cleanliness, staff & service, property conditions & facilities
The staff was excellent and our room was very clean. The location is fantastic. We really enjoyed our stay.
Stayed 4 nights in Apr 2025

10/10 Excellent

NAZILA

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We absolutely loved the Southernmost House! From start to finish, our experience was nothing short of amazing. The location is perfect, with incredible views and easy access to everything. The staff were beyond friendly and welcoming, making us feel right at home. The pool was beautiful, the breakfast was delicious, and every detail was truly A+. We enjoyed our time here so much and can’t wait to come back again. This hotel is a gem—we definitely recommend it!

10/10 Excellent

Deborah

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
We had a fabulous time in the Keys. Our stay at the mansion was perfect. Everyone made us feel comfortable. Outstanding location and stay. We will visit again.
Stayed 4 nights in Jul 2025

10/10 Excellent

Bonnie

The breakfast was wonderful and the desk staff were extremely helpful.
Stayed 2 nights in Feb 2025

10/10 Excellent

Alexander

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great location and wonderful staff. Breakfast was awesome!
Stayed 3 nights in Mar 2025

10/10 Excellent

Kimberly A

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The pool /ocean view was beautiful- clean - and so private!! Pool was open for night swimming until 10pm -which was so relaxing!! Bar/restaurant on the premises - comp to your room! Get the Lobster pizza!! Beautiful sunrise viewing! Rooms are clean and cozy! Nice towels and crisp clean bedding. European style breakfast served daily and was very good! Yummy pastries! Staff is very friendly and accommodating! Would definitely stay here again!
Stayed 7 nights in Oct 2025