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The Mansion on the Sea - Southernmost House in the USA

3.0 star property
Adults-only beach hotel with outdoor pool

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Photo gallery for The Mansion on the Sea - Southernmost House in the USA

Terrace/patio
Front of property - evening/night
Exterior
Property amenity
Premium bedding, pillowtop beds, individually furnished
Located close to South Beach, The Mansion on the Sea - Southernmost House in the USA offers a tranquil retreat. Enjoy continental breakfast by the ocean views at Seaside Cafe at Mansion or unwind by the pool with sun loungers and umbrellas. With shopping on site, a gift shop, and helpful staff this hotel near Key West Butterfly and Nature Conservatory is perfect for relaxation.

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Parking available
  • Room service
  • Bar
  • Housekeeping
The current price is P31,756
P37,506 total
includes taxes & fees
Feb 23 - Feb 24

Room options

Available filters for rooms
Showing 18 of 18 rooms

View all photos for Mansion Room #204 - Courtyard View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #204 - Courtyard View - Adults Only

Highlights

Balcony
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

View all photos for Mansion Room #107 - Ocean View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #107 - Ocean View - Adults Only

Highlights

Balcony or patio
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Mansion Room #203 - Courtyard View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #203 - Courtyard View - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
Private bathroom
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

View all photos for Bungalow #101 -Ocean Front - Adults Only

Premium bedding, pillowtop beds, individually furnished

Bungalow #101 -Ocean Front - Adults Only

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 46 sq m
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Queen Sofa Bed OR 1 King Bed

View all photos for Mansion Room #106 - Ocean View w/ Direct Pool Access - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #106 - Ocean View w/ Direct Pool Access - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
Private bathroom
  • 46 sq m
  • Partial ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Mansion Room #201 - Ocean View with private balcony - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #201 - Ocean View with private balcony - Adults Only

Highlights

Balcony or patio
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Mansion Room #202 - Ocean View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #202 - Ocean View - Adults Only

Highlights

Balcony
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 28 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Mansion Room #301 - Tower Outlook to Ocean View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #301 - Tower Outlook to Ocean View - Adults Only

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 28 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Lopez House #108 - King Courtyard Suite with Kitchen - Adults Only

Premium bedding, pillowtop beds, individually furnished

Lopez House #108 - King Courtyard Suite with Kitchen - Adults Only

Highlights

Separate dining area
Separate sitting area
Individually furnished
Air conditioning
Kitchen
Dishwasher
HDTV
Pillowtop bed
  • 65 sq m
  • Partial ocean view
  • Sleeps 4
  • 1 King Bed and 1 Queen Sofa Bed

View all photos for Mansion Room #302 - Oceanview - 1 King Bed - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #302 - Oceanview - 1 King Bed - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
Private bathroom
  • 46 sq m
  • Partial ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Bungalow #102 - Pool View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Bungalow #102 - Pool View - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
Private bathroom
  • 37 sq m
  • Sleeps 4
  • 1 Queen Bed and 1 Double Sofa Bed

View all photos for Cottage #104 - Ocean View w/Direct Pool Access - Adults only

Premium bedding, pillowtop beds, individually furnished

Cottage #104 - Ocean View w/Direct Pool Access - Adults only

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 28 sq m
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

View all photos for Mansion Room #303 - Courtyard View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Mansion Room #303 - Courtyard View - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
Private bathroom
  • 46 sq m
  • City view
  • Sleeps 4
  • 2 Queen Beds

View all photos for Lopez House #109 - Courtyard View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Lopez House #109 - Courtyard View - Adults Only

Highlights

Balcony or patio
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 46 sq m
  • Sleeps 2
  • 1 Queen Bed

View all photos for Lopez House #205 - Partial Ocean View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Lopez House #205 - Partial Ocean View - Adults Only

Highlights

Balcony
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Lopez House #206 - Partial Ocean View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Lopez House #206 - Partial Ocean View - Adults Only

Highlights

Balcony
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Lopez House #207 - Courtyard View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Lopez House #207 - Courtyard View - Adults Only

Highlights

Balcony
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

View all photos for Bungalow #103 - Pool View - Adults Only

Premium bedding, pillowtop beds, individually furnished

Bungalow #103 - Pool View - Adults Only

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillowtop bed
Premium bedding
Designer toiletries
Hair dryer
  • 28 sq m
  • Sleeps 2
  • 1 Queen Bed

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About the neighborhood

Map
1400 Duval Street, Key West, FL, 33040

What's nearby

  • Southernmost Point - 1 min walk
  • Duval Street - 1 min walk
  • South Beach - 2 min walk
  • Ernest Hemingway Home and Museum - 9 min walk
  • Mallory Square - 4 min drive

Getting around

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

Restaurants

  • ‪Old Town Tavern Key West - ‬9 min walk
  • ‪Southernmost Beach Café - ‬1 min walk
  • ‪Southernmost Point Bar In the USA - ‬5 min walk
  • ‪Rum Bar at the Speakeasy Inn - ‬5 min walk
  • ‪Banana Cafe - ‬4 min walk

About this property

The Mansion on the Sea - Southernmost House in the USA

Hotel near Southernmost Point
Located close to Key West Butterfly and Nature Conservatory and South Beach, The Mansion on the Sea - Southernmost House in the USA 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 in-room WiFi, with speed of 100+ Mbps (good for 1–2 people or up to 6 devices).
Other perks at this hotel include:
  • An outdoor pool with sun loungers and pool umbrellas
  • Self parking (surcharge), outdoor furniture, and a reception hall
  • Wedding services, luggage storage, and a porter/bellhop
  • A gift shop, multilingual staff, and concierge services
  • 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 newspapers and WiFi.
More amenities include:
  • Designer toiletries, showers, and hair dryers
  • 42-inch HDTVs with streaming services and premium channels
  • Coffee/tea makers and daily housekeeping

Languages

English, French, Russian, Spanish

Property amenities

Internet

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

Parking and transportation

  • Self parking on site (USD 20 per night)

Food and drink

  • Free continental breakfast available daily 8:00 AM to 10:00 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
  • Tour and ticket assistance
  • Wedding services

Outdoors

  • Beach loungers
  • 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.
  • Upper floors accessible by stairs only
  • Well-lit path to entrance

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
  • Shower
  • Towels provided

Entertainment

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

Food and drink

  • 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 available
Late check-in subject to availability
Minimum check-in age: 18

Check-out

Check-out before 11 AM
Contactless check-out available

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
Cribs (infant beds) are not available

Property payment types

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 under 21 years old staying between 1 March - 31 March
  • Resort fee: USD 30.78 per accommodation, per night
The resort fee includes:
  • Beach loungers
  • Beach towels
  • Concierge service
  • Housekeeping
  • In-room bottled water
  • In-room coffee
  • In-room safe
  • Internet access
  • Lending library access
  • Pool access

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

Optional extras

  • Self parking fee: USD 20 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 fire extinguisher

We should mention

This property does not have elevators
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 The Mansion on the Sea - Southernmost House in the USA have a pool?

Yes, this property has an outdoor pool.

How much does it cost to stay at The Mansion on the Sea - Southernmost House in the USA?

As of Feb 16, 2025, prices found for a 1-night stay for 2 adults at The Mansion on the Sea - Southernmost House in the USA on Feb 23, 2025 start from P 31,755.81, 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 The Mansion on the Sea - Southernmost House in the USA pet-friendly?

No, pets are not allowed at this property.

How much is parking at The Mansion on the Sea - Southernmost House in the USA?

Self parking is available for USD 20 per night.

What time is check-in at The Mansion on the Sea - Southernmost House in the USA?

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 The Mansion on the Sea - Southernmost House in the USA?

Check-out is at 11 AM.

Where is The Mansion on the Sea - Southernmost House in the USA located?

Located in Key West Historic District, 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.

The Mansion on the Sea - Southernmost House in the USA Reviews

Reviews

9.4

Exceptional

Rating 10 - Excellent. 737 out of 1003 reviews
Rating 8 - Good. 175 out of 1003 reviews
Rating 6 - Okay. 61 out of 1003 reviews
Rating 4 - Poor. 18 out of 1003 reviews
Rating 2 - Terrible. 12 out of 1003 reviews

9.4/10

Cleanliness

9.4/10

Staff & service

9.2/10

Amenities

9.0/10

Property conditions & facilities

9.2/10

Eco-friendliness

Reviews

10/10 Excellent

Bonnie

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

10/10 Excellent

Ellen

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 1 night in Feb 2025

10/10 Excellent

Edward

Liked: Staff & service, property conditions & facilities
Staff and location could not have been nicer.
Stayed 4 nights in Jan 2025

8/10 Good

Ronald

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The property was wonderful. My only issue was we stayed in room 106 which was right next ro their common bathroom which had a lot of traffic and noise.
Stayed 5 nights in Jan 2025

8/10 Good

Brian, Broomfield

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 2 nights in Jan 2025

10/10 Excellent

William

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 3 nights in Jan 2025

10/10 Excellent

Douglas

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We can't say enough great things about this hotel. As soon as we arrived, we were welcomed by the staff and received excellent service throughout our stay. The Mansion itself is beautiful and our room (204) was perfect. The pool and access to the adjacent bar were fantastic for our "pool days." The pool never got crowded and there were plenty of lounge chairs and beach towels provided. The hotel is conveniently located at the (quieter) end of Duval Street and it's an easy walk or Uber ride to dinners, etc. We also appreciated the complimentary breakfast provided every morning - it's definitely a step-up from the typical continental breakfast provided by many hotels. Truly, we look forward to staying here again in the future.
Stayed 4 nights in Jan 2025

8/10 Good

Harriet, Fayetteville

Stayed 3 nights in Jan 2025

10/10 Excellent

David, Sinking Spring

Traveled with group, Traveled with partner, Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The property is outstanding. Accommodations are great, pool was nice and warm. Nothing to complain about, period. Will definitely return. Attention to detail and personal touch was second to none. Thanks for a wonderful stay.
Stayed 4 nights in Jan 2025

10/10 Excellent

Heather

Liked: Cleanliness, staff & service, property conditions & facilities
Beautiful, unique experience.
Stayed 1 night in Dec 2024

10/10 Excellent

Erik

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
What a beautiful place and incredible location. The pool and private oceanfront sunset viewing area was amazing! The staff are over the top friendly and amazing and there is a great breakfast selection. Pool is heated and 24 hours which is rare. It was truly a pleasure to stay at this historic and fabulous location. I will definitely be back!!!
Stayed 2 nights in Jan 2025

8/10 Good

Elizabeth Garlen

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We stayed in one of the bungalows. While not elegant it was clean and quiet. We liked having the outdoor space.
Stayed 3 nights in Jan 2025

10/10 Excellent

Umesh

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
great place to stay. walking distance to most things in the town.
Stayed 3 nights in Nov 2024

10/10 Excellent

William

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Wonderful house with lots of cool history.
Stayed 6 nights in Jan 2025

10/10 Excellent

Keith, Kansas City

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great lication
Stayed 7 nights in Dec 2024

8/10 Good

cathy

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Everything
Stayed 4 nights in Dec 2024

10/10 Excellent

Grant

Liked: Cleanliness, property conditions & facilities
Stayed 3 nights in Dec 2024

10/10 Excellent

Benjamin, Owens Cross Roads

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
So close to the action but very quiet with access to the ocean. The free breakfast and Keurig in the room with pods was so appreciated. This is the quieter end of Duval but you can get to all kinds of good stuff with a short to medium walk.
Stayed 4 nights in Dec 2024

10/10 Excellent

Richard

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Excellent place, friendly people
Stayed 3 nights in Dec 2024

6/10 Okay

Tatiana

Traveled with family
The cleaning personnel did not clean the sink & the toilet. The air conditioner in the room is old & too loud. The air fresheners everywhere are irritating. For the price, bath robes could’ve been provided. The main issue was the outside all night illumination, the light is coming between the blinds. Either turn the lights off at 10pm or put curtains on. Also, roosters will wake you up around 2:30am
Stayed 2 nights in Dec 2024

10/10 Excellent

David

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The view is beautiful, gorgeous sunsets, the service is really friendly, clean rooms, and a great pool.
Stayed 5 nights in Dec 2024

6/10 Okay

REID

Traveled with partner
Liked: Cleanliness, staff & service
Disliked: Property conditions & facilities
The property owners upgraded the bar area for optimum profitability but have regretfully neglected the hotel grounds especially the bungalows by the pool area. Food and bar servers are excellent. For the price you pay the continental breakfast could be upgraded.
Stayed 4 nights in Nov 2024

10/10 Excellent

Christopher

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Get outside of the standard hotel setting and enjoy a personal experience at the Mansion. Beautiful old home with great character, wonderful staff (Nina was super friendly and happy to engage in historical conversations), amazing food on premise (owner's son) at the Seaside Cafe, and the location is absolutely perfect. Ideal sunrise and sunset location, on the south end of Duval St, this is the perfect place to start and finish your daily exploration of the island. Highly recommend
Stayed 4 nights in Nov 2024

10/10 Excellent

Betty

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Adults only. Interesting history. Loved our room. Very quiet. Staff very pleasant and helpful, like we were right at home. Dining was great. Would definitely recommend.
Stayed 2 nights in Nov 2024

8/10 Good

Michael

Stayed 1 night in Nov 2024