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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

Mansion Room #201 - Ocean View with private balcony - Adults Only | Terrace/patio
Exterior
Mansion Room #106 - Ocean View w/ Direct Pool Access - Adults Only
Front of property – evening/night
Property amenity

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Parking available
  • Room service
  • Bar
  • Breakfast included
  • Pool
  • Housekeeping
The current price is €601
includes taxes & fees
20 Mar - 21 Mar

Room options

Available filters for rooms
Showing 18 of 18 rooms

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

Mansion Room #204 - Courtyard View - Adults Only

Mansion Room #204 - Courtyard View - Adults Only

Highlights

Balcony
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

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

Mansion Room #107 - Ocean View - Adults Only

Mansion Room #107 - Ocean View - Adults Only

Highlights

Balcony or patio
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

Mansion Room #203 - Courtyard View - Adults Only

Mansion Room #203 - Courtyard View - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
Hairdryer
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

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

Bungalow #101 -Ocean Front - Adults Only

Bungalow #101 -Ocean Front - Adults Only

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 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

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

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

Highlights

Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
Hairdryer
  • 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

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

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

Highlights

Balcony or patio
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

Mansion Room #202 - Ocean View - Adults Only

Mansion Room #202 - Ocean View - Adults Only

Highlights

Balcony
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 28 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

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

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

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 28 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

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

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

Highlights

Separate dining area
Separate sitting area
Individually furnished
Air conditioning
Kitchen
Dishwasher
HDTV
Separate bedroom
  • 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

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

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

Highlights

Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
Hairdryer
  • 46 sq m
  • Partial ocean view
  • Sleeps 2
  • 1 King Bed

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

Bungalow #102 - Pool View - Adults Only

Bungalow #102 - Pool View - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
Hairdryer
  • 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

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

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

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 28 sq m
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

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

Mansion Room #303 - Courtyard View - Adults Only

Mansion Room #303 - Courtyard View - Adults Only

Highlights

Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
Hairdryer
  • 46 sq m
  • City view
  • Sleeps 4
  • 2 Queen Beds

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

Lopez House #109 - Courtyard View - Adults Only

Lopez House #109 - Courtyard View - Adults Only

Highlights

Balcony or patio
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 46 sq m
  • Sleeps 2
  • 1 Queen Bed

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

Lopez House #205 - Partial Ocean View - Adults Only

Lopez House #205 - Partial Ocean View - Adults Only

Highlights

Balcony
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

Lopez House #206 - Partial Ocean View - Adults Only

Lopez House #206 - Partial Ocean View - Adults Only

Highlights

Balcony
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
  • 46 sq m
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

Lopez House #207 - Courtyard View - Adults Only

Lopez House #207 - Courtyard View - Adults Only

Highlights

Balcony
Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
  • 46 sq m
  • Sleeps 2
  • 1 King Bed

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

Bungalow #103 - Pool View - Adults Only

Bungalow #103 - Pool View - Adults Only

Highlights

Separate sitting area
Individually furnished
Air conditioning
HDTV
Pillow-top bed
Premium bedding
Private bathroom
Designer toiletries
  • 28 sq m
  • Sleeps 2
  • 1 Queen Bed

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About the area

Map
1400 Duval Street, Key West, FL, 33040

What's nearby

  • Southernmost Point - 1 min walk - 0.2 km
  • Duval Street - 1 min walk - 0.2 km
  • South Beach - 2 min walk - 0.2 km
  • Ernest Hemingway Home and Museum - 9 min walk - 0.8 km
  • Fort Zachary Taylor Historic State Park - 4 min drive - 2.4 km

Getting around

  • Key West, FL (EYW-Key West Intl.) - 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 a speed of 100+ Mbps (good for 1–2 people or up to 6 devices).
Other perks at this hotel include:
  • An outdoor pool with sunloungers and pool umbrellas
  • Self-parking (surcharge), a porter/bellboy and coffee/tea in reception
  • A front desk safe, free newspapers and tour/ticket information
  • Outdoor furniture, a TV in reception and a reception hall
  • 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 newspapers and WiFi.
Extra amenities include:
  • Designer toiletries, showers and hairdryers
  • 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 transport

  • Parking on site (USD 20 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
  • 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

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 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
  • 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

This property is managed by a professional host. The provision of housing is linked to their trade, business or profession.
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

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 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 6 Mar 2025, prices found for a 1-night stay for 2 adults at The Mansion on the Sea - Southernmost House in the USA on 20 Mar 2025 start from €572.11, including 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?

Checkout is at 11 AM.

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

Reviews

9.4

Exceptional

Rating 10 - Excellent. 742 out of 1007 reviews
Rating 8 - Good. 173 out of 1007 reviews
Rating 6 - Okay. 62 out of 1007 reviews
Rating 4 - Poor. 18 out of 1007 reviews
Rating 2 - Terrible. 12 out of 1007 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

Edward

Staff and location could not have been nicer.
Stayed 4 nights in Jan 2025

10/10 Excellent

Andrew

Perfect get away
Stayed 1 night in Feb 2025

10/10 Excellent

Umesh

great place to stay. walking distance to most things in the town.
Stayed 3 nights in Nov 2024

10/10 Excellent

Jim

Great pool. Ocean views.
Stayed 4 nights in Feb 2025

10/10 Excellent

Ami

The staff was very friendly and helpful. The room was delightful and very clean. Breakfast was very good. We loved spending time on the balcony and at the heated pool. We loved having the resort feel with no crowd.
Stayed 5 nights in Feb 2025

10/10 Excellent

Richard

Excellent place, friendly people
Stayed 3 nights in Dec 2024

10/10 Excellent

Matthew

Great
Stayed 1 night in Mar 2025

10/10 Excellent

William

Wonderful house with lots of cool history.
Stayed 6 nights in Jan 2025

10/10 Excellent

Katherine

Staff were excellent! Room was clean!! Didn’t like the 3rd floor walk up!!
Stayed 3 nights in Feb 2025

10/10 Excellent

Kathleen

I could walk out to pool and get a chair at the pool, always available.
Stayed 4 nights in Feb 2025

10/10 Excellent

David

The view is beautiful, gorgeous sunsets, the service is really friendly, clean rooms, and a great pool.
Stayed 5 nights in Dec 2024

8/10 Good

Ronald

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

10/10 Excellent

Heather

Beautiful, unique experience.
Stayed 1 night in Dec 2024

10/10 Excellent

Jamie

Amazing and kind staff. Lovely stay.
Stayed 2 nights in Oct 2024

10/10 Excellent

Benjamin

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

8/10 Good

Elizabeth Garlen

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

Elisa

Staff is fantastic, breakfast is delicious, location cannot be beat!!! The cottages have a gorgeous view of the ocean and the sunrise! Will definitely recommend and stay here again!
Stayed 1 night in Oct 2024

10/10 Excellent

Erik

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

10/10 Excellent

sean

Beautiful oasis in Key West
Stayed 3 nights in Oct 2024

10/10 Excellent

Junko

Ocean view was great.
Stayed 3 nights in Nov 2024

10/10 Excellent

Janet

It is a well maintained historical home with beauty and charm
Stayed 5 nights in Nov 2024

10/10 Excellent

Keith

Great lication
Stayed 7 nights in Dec 2024

10/10 Excellent

Regina

Great stay
Wonderful historical hotel in perfect location. Nice restaurant on the water. Will definitely visit again. All the employees were awesome
Stayed 2 nights in Oct 2024

10/10 Excellent

David

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