The Langham, Custom House, Bangkok is scheduled to open in December 2026 with a dining programme designed around four distinct addresses: Roi Chak Sam, The Cotton Room, T’ang Court and Crowntail. The 75-room hotel occupies Bangkok’s restored riverside Custom House complex in Bang Rak, giving the restaurants a heritage setting that matters as much as the menus.
This is a preview, not a review. Menus, prices and opening dates still need confirmation once reservations go live. What can already be planned is the role of each venue. Roi Chak Sam leads with contemporary Thai cooking, The Cotton Room changes character through the day, T’ang Court brings Cantonese fine dining and Crowntail is built as a multi-zone cocktail destination.
Quick Guide
| Hotel opening | Scheduled for December 2026 |
|---|---|
| Restaurants | Roi Chak Sam, The Cotton Room and T’ang Court |
| Bar | Crowntail |
| Setting | Historic Custom House complex on the Chao Phraya River |
| Best approach | Confirm venue opening, menu and reservation details before visiting |
Roi Chak Sam
Roi Chak Sam takes its name from the three percent import duty once collected at the Custom House. Executive Chef Thitid Ton Tassanakajohn leads the contemporary Thai concept, while Executive Chef Phukvarun Golf Watchmon oversees hotel culinary operations. The historical reference gives the restaurant a clear starting point without forcing it into a museum-like format.
Expect the strongest interest to centre on how Thai ingredients and river-port history are translated into a modern hotel restaurant. Opening menus have not yet been fully published, so diners should avoid assuming a tasting-menu format or price. Ask about seating zones, dietary accommodation and whether river views depend on table category when bookings open.
The Cotton Room
The Cotton Room wraps around the Arrival Hall, Butler Salon and Grand Staircase inside the Custom House. Breakfast begins the day, followed by The Langham’s afternoon tea led by Executive Pastry Chef Prot Stitpittayayut. Lunch and dinner shift to a modern Indian concept developed with chef Garima Arora, combining Indian culinary traditions with Thai ingredients.
That day-long progression makes booking language important. A reservation for afternoon tea is not interchangeable with lunch or dinner, and the same room may feel different as service changes. Confirm the menu window, dress expectations, child policy and deposit terms. Travellers interested in the architecture should allow time to see the shared heritage spaces without disrupting service.
T’ang Court
T’ang Court extends the name of The Langham Hong Kong’s Cantonese restaurant to Bangkok. Executive Chinese Chef Ricky Lin Guoping will lead a menu built around Cantonese barbecue, handcrafted dim sum, premium seafood and wok-fired dishes. The restaurant occupies the Southern Heritage Building, formerly the Second Post and Telegraph Building.
Three private dining rooms can operate separately or combine for larger gatherings. That makes the venue relevant to business meals and family celebrations as well as couples. Ask about minimum spending, advance-order dishes and private-room capacity before committing. Cantonese menus often reward pre-ordering for barbecue or seafood, but only the Bangkok team can confirm which items require notice.
Crowntail
Crowntail is planned as more than one bar counter. Its zones include an indoor bar, a Riverside Pavilion, the rooftop Two Spot bar, an outdoor terrace and a private pier. Bar Manager Tom Hearn brings London hotel-bar experience to a concept named after Thailand’s crowntail betta fish and shaped around local ingredients and polished tableside service.
Choose the zone according to the occasion. Sunset drinks may favour the terrace or pavilion, while later cocktails can work better indoors. Riverfront weather, private events and phased opening may affect access. Confirm whether a reservation guarantees a particular zone, whether minimum spending applies and how the hotel handles arrivals by road or river.
How to Plan
Opening months can change quickly. A hotel may accept room bookings before every restaurant operates its full schedule, and preview menus can differ from launch menus. Book only through a channel that names the exact venue and service. Save written confirmation of date, time, deposit, dress code, cancellation policy and any dietary request.
The Custom House sits in Bang Rak on the Chao Phraya River. Traffic around Charoen Krung is unpredictable, so add a buffer. Guests arriving for a special meal should confirm the entrance, valet arrangements and pier service rather than assuming all facilities are active. The best first visit is the one matched to the restaurant’s actual launch phase.
Make It Work
The Langham’s dining programme has enough range to become a destination beyond an overnight stay. Its appeal lies in four specific identities anchored to the restored riverfront buildings.
Wait for confirmed menus and opening schedules before treating a preview as a promise. Once reservations open, choose the venue first, then the date and table type.
Continue Exploring
Continue with Thailand luxury guides, compare Bangkok restaurant guides, and keep Bangkok bar guides nearby for the rest of the trip.
FAQ
When is The Langham Custom House Bangkok opening?
The hotel is scheduled to welcome guests in December 2026, but individual venue dates should be confirmed.
What restaurants are planned?
Roi Chak Sam, The Cotton Room and T’ang Court, alongside the multi-zone Crowntail cocktail bar.
Can non-guests book?
Hotel dining venues commonly welcome outside guests, but the Bangkok property’s final reservation rules should be checked once each venue opens.
Practical Information
The Langham, Custom House, Bangkok is in the historic Custom House complex in Bang Rak beside the Chao Phraya River. The hotel is scheduled to open in December 2026. Confirm the exact restaurant opening date, menu, price, dress code, deposit and arrival route before making plans.