- Children under 6 years of age dine free of charge. - Children aged 6 to 12 years (not exceeding 12) are charged 50% of the regular adult price. - Buffet prices include unlimited drinking water and one glass of coffee or tea (hot or iced). - Discounts are not applicable to additional beverage orders. - Menu and pricing are subject to change without prior notice. - Prices displayed are exclusive of VAT and service charge. - Discounts apply to food and VAT only, and do not include the service charge. SEAFOOD OF THE DAY: - Lunch Monday - Friday: White Prawns, New Zealand Mussels, Black Mussels and Sea Snail - Brunch Saturday - Sunday & Dinner Friday - Sunday: Grilled River Prawn, Steamed Mud Crab, Steamed Roe Crab with Fresh Milk, Marinated Roe Crab with Homemade Fish Sauce, White Prawns, Rock Lobster, Korean Oysters, New Zealand Mussels and Sea Snail - Dinner Monday - Thursday: Grilled River Prawn, Steamed Mud Crab, White Prawns, Rock Lobster, Korean Oysters, New Zealand Mussels and Sea Snail FAQ Q1: What is Atrium and what kind of dining experience does it offer? A1: Atrium is the all-day dining restaurant at The Landmark Bangkok offering international buffet with live cooking theatres. You’ll find selections for breakfast, lunch, dinner, and weekend brunch. Q2: What are the opening hours / meal periods? A2: Breakfast: 06:00 – 10:30 daily Lunch Buffet: 11:30 – 14:30 (Monday – Friday) Weekend Brunch: Saturday & Sunday, 11:45 – 15:00 Dinner Buffet: 18:00 – 22:00 nightly Q3: Do I need to reserve a table or can I walk in? A3: You can walk in, but reservations are strongly recommended, especially for dinner, weekend brunch, or promotional buffet nights, to secure your preferred seating. Q4: What are the buffet prices and child policies? A4: Weekend brunch / dinner buffet is priced at ฿1,800 net (promotional rate) Children under 6 dine free; children aged 6–12 pay 50% of adult price Buffet pricing includes free flow drinking water and one glass of coffee or tea (hot or iced) Q5: What are some signature dishes or highlights at Atrium? A5: Seafood selection — grilled river prawns, steamed mud crab, rock lobster, oysters, mussels, etc. Live cooking theatres covering Western, Asian, Japanese counters and a bakery theatre. Japanese specialties — sushi, sashimi, yakitori, tempura. Desserts corner with cake, pastries, fresh fruits. Q6: Is there a time limit for dining sessions? A6: For weekend brunch, a time limit of 120 minutes is mentioned in one source. Other buffet sessions may have standard seating duration depending on occupancy — you may want to check with staff when booking. Q7: What is the ambience / setting like? A7: Atrium has been revamped to a contemporary look blending Thai elements and modern design, with high ceilings, floor-to-ceiling windows, and seating along Sukhumvit Road. As an all-day dining space, it feels bright, airy, and vibrant, ideal for family meals, business, or leisurely buffet dining. Q8: Are there any seasonal promotions or special buffet themes? A8: Yes — they run food & beverage spotlight concepts, e.g. “Surf & Turf Extravaganza” featuring dry-aged beef and scallops on Fridays, weekend dinner and brunch. They also advertise “Surf & Turf Extravaganza” in their dining offers pages. Q9: Where is Atrium located and how can I contact them? A9: Address: 138 Sukhumvit Road, Bangkok (The Landmark Bangkok) Highlights Many reviewers praised the fresh seafood, especially the grilled river prawns, marinated crab with roe, and steamed crab with milk. The taste is excellent, the seafood is fresh, and there’s very little fishy smell. The restaurant atmosphere is pleasant — spacious, airy, and newly renovated, providing a comfortable dining area with 7 live cooking stations. Wide variety of dishes — featuring Thai, Chinese, Japanese, and Western cuisines, plus a large selection of desserts including traditional Thai sweets. Excellent service — staff are attentive and friendly; some guests even described it as five-star hotel service.