Hotel in Shinjuku
Reasons to book
Guests love it hereGuests give this property a top rating
Top-tier experienceA high end property in this area
Book with confidenceWe partner with the top travel sites so you know you're getting a great deal on the perfect rental
About this hotel
This smoke-free hotel features a full-service spa, a bar/lounge, and free WiFi in public areas.
Boutique Sauna ARCH offers 2 air-conditioned accommodations with indoor private hot tubs and minibars. Rooms open to balconies. Bathrooms include rainfall showerheads, bathrobes, slippers, and bidets. Additionally, rooms include complimentary bottled water and hair dryers.
Boutique Sauna ARCH offers 2 air-conditioned accommodations with indoor private hot tubs and minibars. Rooms open to balconies. Bathrooms include rainfall showerheads, bathrobes, slippers, and bidets. Additionally, rooms include complimentary bottled water and hair dryers.
Amenities
Air conditioning
Non-smoking
Bar
Spa
Balcony/Terrace
WiFi/Internet
Minibar
No pets allowed
Sauna
Free toiletries
Towels
Fan
Hairdryer
Map of Shinjuku
Available Rooms
Ratings and reviews
10 / 10Outstanding·Apr 2025
The staff were extremely helpful and let me check-in an hour earlier than the intended time. The room was beautiful from top to bottom; I love that the cold plunge was right next to the Sauna. The upstairs bathroom was amazing; everything was super clean and felt like home.
5 / 10·Sep 2026
Stayed for two nights and I have to say this is a really great sanctuary to come home to and find some peace. Brutalist structure with exposed concrete and minimalist design I felt worked very well in the space. I used the sauna and cold plunge three times a day. The room smelled wonderful every time you opened the door. The music is expertly curated and you can adjust the volume easily. A quiet place to find peace in a bustling mega city. The neighborhood is fantastic lots of great restaurants, cafes and shops. Very easy to get to by train, I almost don't want to say more and keep this a hidden gem! Do yourself a favor and book now it's worth it. Check in time is quite a bit later than usual: 9 pm so plan accordingly. The staff is very responsive and were able to get me checked in by 6 pm, less than an hour after booking it last minute. Can't wait to stay here again.
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Top rated by guests
8.6Excellent
(5 Ratings)
"The staff were extremely helpful and let me check-in an hour earlier than the intended time. The room was beautiful from top to bottom; I love that the cold plunge was right next to the Sauna. The ups..."
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