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Southernmost House

4.0 star property
Adults-only hotel with free breakfast and outdoor pool

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

  • Bar
  • Room service
The current price is ฿8,700
฿12,788 total
includes taxes & fees
5 Nov - 6 Nov

Room options

Available filters for rooms
Showing 9 of 9 rooms

View all photos for Premium Ocean View King

Premium Ocean View King | 1 bedroom, premium bedding, pillow-top beds, individually furnished

Premium Ocean View King

8.8 out of 10
Excellent
(3 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Premium bedding
Separate bedroom
Pillow-top bed
Hairdryer
  • 28 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Ocean View King

Ocean View King | 1 bedroom, premium bedding, pillow-top beds, individually furnished

Ocean View King

9.4 out of 10
Exceptional
(9 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Premium bedding
Separate bedroom
Pillow-top bed
Hairdryer
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Courtyard view King

Courtyard view King | 1 bedroom, premium bedding, pillow-top beds, individually furnished

Courtyard view King

10.0 out of 10
Exceptional
(2 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Premium bedding
Separate bedroom
Pillow-top bed
Hairdryer
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

View all photos for Premium Ocean View Bungalow King with Kitchenette

Premium Ocean View Bungalow King with Kitchenette | 1 bedroom, premium bedding, pillow-top beds, individually furnished

Premium Ocean View Bungalow King with Kitchenette

Highlights

Deck/patio
Separate sitting area
Individually furnished
Air conditioning
Kitchenette
Fridge
HDTV
Premium bedding
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed and 1 Queen Sofa Bed OR 1 King Bed

View all photos for Pool View Bungalow Queen with Kitchenette

Pool View Bungalow Queen with Kitchenette | 1 bedroom, premium bedding, pillow-top 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
Fridge
HDTV
Premium bedding
Separate bedroom
  • 37 sq m
  • Sleeps 2
  • 1 Queen Bed and 1 Double Sofa Bed

View all photos for Courtyard View 2 Queen

Courtyard View 2 Queen | 1 bedroom, premium bedding, pillow-top beds, individually furnished

Courtyard View 2 Queen

9.4 out of 10
Exceptional
(9 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Premium bedding
Separate bedroom
Pillow-top bed
Hairdryer
  • 46 sq m
  • Sleeps 2
  • 2 Queen Beds

View all photos for Partial Ocean View King

Partial Ocean View King | 1 bedroom, premium bedding, pillow-top beds, individually furnished

Partial Ocean View King

9.8 out of 10
Exceptional
(8 reviews)

Highlights

Individually furnished
Air conditioning
Mini-fridge
HDTV
Premium bedding
Separate bedroom
Pillow-top bed
Hairdryer
  • 46 sq m
  • Partial ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Courtyard view Queen ADA

Courtyard view Queen ADA | 1 bedroom, premium bedding, pillow-top 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
Premium bedding
Separate bedroom
Pillow-top bed
  • 46 sq m
  • Sleeps 2
  • 1 Queen Bed

View all photos for 1-Bedroom Suite with Full Kitchen

1-Bedroom Suite with Full Kitchen | 1 bedroom, premium bedding, pillow-top 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 fridge/freezer
Dishwasher
HDTV
  • 65 sq m
  • 1 bedroom
  • Sleeps 2
  • 1 King Bed and 1 Queen Sofa Bed

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About the area

Map
1400 Duval Street, Key West, FL, 33040

What's nearby

  • Duval Street - 1 min walk - 0.0 km
  • South Beach - 1 min walk - 0.0 km
  • Southernmost Point - 2 min walk - 0.2 km
  • Ernest Hemingway Home and Museum - 8 min walk - 0.7 km
  • Mallory Square - 3 min drive - 1.7 km

Getting around

  • Key West, FL (EYW-Key West Intl.) - 9 min drive

Restaurants

  • ‪Southernmost Beach Café - ‬1 min walk
  • ‪Circle K - ‬5 min walk
  • ‪Seaside Cafe at the Mansion - ‬1 min walk
  • ‪La Te Da - ‬4 min walk
  • ‪Southernmost Point Bar in the USA - ‬5 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 poolside bar and a terrace. The on-site restaurant, Seaside Cafe at Mansion, offers lunch, dinner and ocean views. In addition to shopping on-site and a garden, guests can connect to free in-room WiFi, with a speed of 500+ Mbps (good for 6+ people or 10+ devices).
Other perks at this hotel include:
  • An outdoor pool, along with sunloungers and pool umbrellas
  • Self-parking (surcharge), concierge services and beach towels
  • Luggage storage, tour/ticket information and a gift shop
  • Wedding services, a porter/bellboy and a front desk safe
  • Guest reviews say great things the helpful staff, first-rate property condition and location
Room features
All rooms are individually furnished, and offer comforts such as premium bedding and air conditioning, in addition to thoughtful touches such as free WiFi and free newspapers.
Extra amenities include:
  • Designer toiletries, showers and hairdryers
  • 42-inch HDTVs with streaming services and premium channels
  • Coffee/tea makers and daily housekeeping

Similar properties

3 outdoor pools, pool umbrellas, pool loungers

Southernmost Beach Resort and Guesthouses

  • Pool
  • Spa
  • Free WiFi
  • Restaurant
8.6 out of 10, Excellent, 2,850 reviews
The price is ฿5,748
฿8,843 total
includes taxes & fees
30 Nov - 1 Dec
Southernmost Beach Resort and Guesthouses

Property amenities

Internet

  • Available in all rooms: Free WiFi
  • In-room WiFi speed: 500+ Mbps (good for 6+ people or 10+ devices)
  • Available in some public areas: Free WiFi

Parking and transport

  • Parking on site (USD 25 per night)

Food and drink

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

Restaurants on site

  • Seaside Cafe at Mansion

Things to do

  • Outdoor pool
  • Shopping
  • TV in common areas

Conveniences

  • Free newspapers in lobby
  • Gift shop/newsstand
  • Limited-hour front desk
  • Luggage storage
  • Safe at front desk

Guest services

  • Concierge services
  • Housekeeping (daily)
  • Multilingual staff
  • Porter/bellhop
  • Proposal/romance packages
  • Tour and ticket assistance
  • Wedding services

Outdoors

  • Beach loungers
  • Beach towels
  • Garden
  • 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 lift

More

  • 3 buildings
  • 3 floors
  • Built in 1897
  • Designated smoking areas
  • Reception hall
  • 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

  • Champagne service
  • Coffee/tea maker
  • Room service

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
Early check-in subject to availability
Contactless check-in and check-out are available
Late check-in subject to availability
Minimum check-in age - 18

Check-out

Check-out before 11 AM
Contactless check-out

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

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
Cots (infant beds) are not available

Payment types at the property

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

  • Spring Break deposit: USD 250 per stay for guests aged under 21 years old staying between 1 March and 31 March

We have included all charges provided to us by the property.

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
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 and terraces, which may not be suitable for children; if you have any concerns, we recommend contacting the property prior to your arrival to confirm that they can accommodate you in a suitable room

We should mention

This property does not have any lifts
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.

How much does it cost to stay at Southernmost House?

As of 4 Nov 2025, prices found for a 1-night stay for 2 adults at Southernmost House on 5 Nov 2025 start from ฿8,700.0, 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 at Southernmost House?

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?

Checkout is at 11 AM.

Where is Southernmost House located?

Located in Old Town Key West, this beach hotel is steps away 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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