Home Hotel Mitsui Kyoto: my NEW favorite hotel in Japan with PRIVATE Onsen | Full Hotel Tour

Hotel Mitsui Kyoto: my NEW favorite hotel in Japan with PRIVATE Onsen | Full Hotel Tour

By Travel Influencer - October 05, 2025

Hotel The Mitsui Kyoto Review

Property Overview

Location: Kyoto, Japan
Brand: Marriott Bonvoy property
Rating: Three Michelin Keys (one of only six hotels in Japan with this rating)
Reviewer: Nick Gray
Room Reviewed: Room 445 - King bed with garden view

Historical Significance

  • Built on land owned by the historic Mitsui family
  • Mitsui family: Major industrialist family since the 1600s
  • Operated a conglomerate including dry goods stores
  • Pioneered fixed pricing (instead of bartering)
  • Original family home transformed into luxury hotel
  • Museum on-site documenting property and family history

Room Features

King Garden View Room (Room 445)

  • King-size bed
  • Garden views with two-screen window system (blackout curtain + sheer screen)
  • Electronic window controls next to bed
  • Two nightstands with power outlets and USB-A ports
  • Work bench/desk area

In-Room Amenities

  • Welcome snacks (candy, mix)
  • Stationery box
  • Custom pajamas and slippers (Western sizing available)
  • Two plush bathrobes
  • Nespresso machine
  • Premium tea selection (TWG teas: Vanilla Bourbon, English Breakfast)
  • Excellent green tea selection
  • Mini bar
  • Electric kettle
  • Premium mugs
  • Netflix on TV

Bathroom

  • Enormous Japanese-style soaking tub
  • Separate shower with both handheld and rainfall shower heads
  • Vanity amenity box (mouthwash, exfoliator, etc.)
  • Elegant soap setup and water cup
  • Bidet toilet
  • Two bathrobes

Hotel Facilities

Library (Unique Feature)

  • Excellently curated book collection
  • History books about the Mitsui family and property
  • Nearby museum information
  • Design book collections
  • Books available for checkout
  • Quiet reading space in morning

Breakfast Buffet

  • Extensive salad bar
  • Fresh fruit plates and juices
  • Salmon
  • Excellent hash browns
  • Bread station with fresh selections
  • À la carte menu options available
  • Beautiful presentation

Fitness Center (Level B1)

  • 3 treadmills
  • 1 elliptical
  • Technogym equipment
  • Free weights (4kg to 22kg)
  • Foam rollers and exercise balls
  • Smith machine
  • Rowing machine
  • Exercise bikes
  • Workout clothes available to borrow

Thermal Springs Spa (Level B1)

  • Co-ed onsen (rare feature - both men and women can enjoy together)
  • Located in basement level
  • Indoor facility (not outdoor)
  • Atmospheric underground corridor with gate design elements

Other Amenities

  • Beautiful garden with koi fish
  • Elegant lobby with seating areas
  • Design sculptures and objects throughout property
  • Public bathrooms with luxury touches (hand towels, bidets)

Service & Experience

  • Amazing concierge service (helpful with reservations)
  • Attentive staff throughout property
  • Calm, peaceful atmosphere
  • Immaculate premium feeling
  • Excellent attention to design details

Location & Setting

  • Kyoto, Japan
  • Garden views from rooms
  • Near museums and cultural sites
  • Beautiful in winter (snow visible during visit)
  • Best visited outside January for optimal garden views

Pros

✓ Three Michelin Keys rating
✓ Exceptional service and concierge
✓ Unique co-ed onsen experience
✓ Excellent breakfast buffet
✓ Beautiful design and calm atmosphere
✓ Well-curated library
✓ Custom pajamas and slippers
✓ Great garden views
✓ Netflix in rooms
✓ Historical significance and museum

Cons

✗ Light switches overly design-focused and confusing
✗ Difficult to turn off all bathroom lights
✗ Onsen located in basement (not outdoor)
✗ Gym adequate but not exceptional (compared to Ritz-Carlton Tokyo)
✗ January timing means less attractive garden views

Ideal For

  • Honeymoons and romantic getaways
  • Couples wanting co-ed onsen experience
  • Design and architecture enthusiasts
  • Book lovers (library feature)
  • Travelers seeking calm, premium Japanese luxury
  • Marriott Bonvoy members

Reviewer's Verdict

"Perhaps my favorite hotel in all of Japan"

Highly recommended despite minor lighting issues. The combination of historical significance, exceptional service, unique co-ed onsen, beautiful design, and three Michelin Keys rating makes this a standout property in Kyoto.

Comparison Notes

  • Reviewer planned to compare with Ritz-Carlton Kyoto in follow-up video
  • Part of tour of best-rated Marriott Bonvoy properties in Tokyo and Kyoto
Read more...

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