Deluxe King Room
452 sq.ft • Full Double Bed
From $333
Bangkok, Thailand
Anantara Siam Bangkok Hotel
5 star
From $213/Night
From $213/Night
Standard Amenities
24-hour front desk
Concierge
Express check-in/out
Luggage storage
Currency exchange
Select the perfect room for your stay.
Deluxe Double or Twin Room
452 sq.ft • Twin Beds
From $328
Can't find it? Reach out for insider rates and effortless bookings.
Deluxe Double Room
452 sq.ft • Full Double Bed
From $245.32
Standard Double Suite
775 sq.ft • Full Double Bed
From $394.77
Standard King Room
452 sq.ft • Full Double Bed
From $369
Standard Double or Twin Room
452 sq.ft • Twin Beds
From $364
Standard Double Room
452 sq.ft • Full Double Bed
From $213.07
Kasara Executive King Room
452 sq.ft • Full Double Bed
From $308
Kasara Executive Double or Twin Room
452 sq.ft • Twin Beds
From $584
Kasara Executive Suite
From $470.89
2 Bedroom Standard Villa with Garden and Pool
1389 sq.ft • Twin Beds
From $1,398.6
Insider Info
What to Know Before You Go
Thai Silk and Handcrafted Furniture
Guest rooms and suites at this Rajadamri Road hotel are dressed in opulent silks by the renowned Thai designer Jim Thompson, paired with handcrafted furniture made exclusively for the property. The details reflect the building's traditional Thai architectural styling, giving each room a distinctly regional character within an otherwise contemporary city hotel.
Lobby with Lavish Murals
The hotel's lobby is finished with lavish murals and high ceilings, part of a residentially styled building that blends a resort ambiance with traditional Thai architecture. Arriving guests pass through this grand entrance space before reaching the rooms and public areas, setting the tone for the property's regal, Thai-influenced sense of hospitality.
Where you'll be
155 Rajadamri Road (near Siam Square), Patumwan District, 10330 Bangkok, Thailand
Need to know
A few notes on your visit.
Check-in
From 15:00
Check-out
Until 12:00
Size of property
354 rooms across 9 floors
Cards accepted
American Express, JCB, Diners Club, MasterCard, Visa
Electricity
220V · 50Hz · type A/B/C sockets
Meals
Price of an additional breakfast: 1,047.00 THB per person. Information about the type of meals included in the price is indicated in the rate details.
Children and information about extra beds
Fee for an extra bed: 3,000.00 THB per night.
The number of extra beds depends on the room category. You must take a look at the information about the size of the selected room.
Breakfast for children costs: 524.00 THB.
Special living conditions
A deposit of 2,000.00 THB per day will be required at check-in to cover any potential damages.
Transfer
Transfer from/to airport available. Cost: 3,500.00 THB one way.
Extra info
Since October 2017, all owners of quadrocopters and other unmanned aerial vehicles (drones) are required to register their devices with the National Television and Radio Commission of Thailand (NBTC). In case of violation of the order, Thai law provides for a penalty of up to five years in prison and / or a fine of up to 100 thousand baht (about 3 thousand US dollars).
Mandatory gala dinner fees may apply at Thailand hotels. Guests should contact the hotel directly for more information.
Under the new immigration procedures, effective May 1, 2025, all foreign nationals entering Thailand by air, land or sea must complete the Thailand Digital Arrival Card (TDAC) online form on the official website of the Bureau of Immigration of Thailand three days prior to arrival.
The fitness centre will be temporarily closed from 5 to 12 December 2025. During this period, the newly reimagined swimming pool is available for use, and complimentary access to the fitness facilities at The St. Regis Bangkok is provided.
The hotel announces a series of planned enhancements from June 2025 to June 2026, aimed at elevating the guest experience.
Additional upgrades are currently underway at the Kasara Executive Lounge, Garden Terrace Rooms, and Meeting Rooms. These spaces will reopen once improvements are completed.
The hotel requests a refundable deposit of THB 1000.00 to THB 2000.00 per night for incidentals.
For Christmas and New Year's Eve dinners, guests may be charged separately at the hotel.
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