Hamamatsu Marriott Hotel: Be Among the First to Experience Premium Hospitality at Hamamatsu Marriott
Grand Hotel Hamamatsu is being transformed into the Hamamatsu Marriott Hotel, which will be rebranded on May 1. Experience elevated comfort and signature Marriott hospitality designed for both business and leisure.
Contact us at +81-53-452-2112 or reserve your stay on our reservation page to be among the first to experience premium hospitality at Marriott Hamamatsu.

Thank you for your continued loyalty to the HMI Hotel Group.
As of May 1, 2026, Grand Hotel Hamamatsu will reopen as Hamamatsu Marriott Hotel. With this transition, HMI Premium Club benefits will no longer be available for stays from that date onward. This includes the following benefits:
1. Member stays discounts
2. Early check-in & late check-out
3. Complimentary room upgrades
4. 10% off at restaurants
5. Welcome gifts

Please note that even if you have made a reservation on the Grand Hotel Hamamatsu website for dates after May 1, these benefits will not apply.

Enjoy the Privileges of Marriott Bonvoy
At Hamamatsu Marriott Hotel, you can enjoy the world-class privileges of Marriott Bonvoy, the global membership program of Marriott International. Earn and redeem points for stays worldwide, and experience elevated hospitality and exclusive member services.
For more information, please contact our hotel team during your stay.

Due to renovation work at the All Day Dining “Rochester” New Annex 12F, the breakfast venue will change during the period below.

Renovation Period: January 2026 ~
Venue Change:
Old: All Day Dining “Rochester” New Annex 12F
New: B1F Chinese Restaurant “Tsumorin”

We appreciate your understanding and cooperation.

We are pleased to announce the completion of our comprehensive guest room renovations, designed to provide you with the ultimate relaxation and an even more refined stay.

Our newly transformed spaces feature modern, sophisticated design harmoniously integrated with the latest amenities, ensuring a comfortable stay.
Every detail, from the lighting to the carefully selected furnishings, creates an environment where you can truly unwind. Escape the daily hustle and bustle in our reimagined guest rooms and enjoy a special time.
We sincerely look forward to welcoming you.

There have been increasing reports of mobile batteries emitting smoke or catching fire, both in Japan and overseas. To ensure the safety and comfort of all our guests, we kindly ask for your cooperation regarding the use of mobile batteries in guest rooms, as outlined below:

- If you notice any deformation on the battery casing, please stop using it immediately.
- Please refrain from charging mobile batteries when you are away from the room.
- When charging portable electronic devices using a mobile battery, or when charging the mobile battery using an in-room power outlet, please avoid placing it near windows with direct sunlight or on flammable surfaces such as beds and sheets.
- To minimize the risk of fire or malfunction, please use mobile batteries only in locations where you can regularly monitor their condition.

If any of the above situations are observed during room cleaning while you are staying with us, our staff may, for safety reasons, move the mobile battery to another location or stop the charging process.
We appreciate your understanding and cooperation.