T-One Building
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Keywords: T-One Building, Office for rent Thonglor, Grade A office Bangkok, Office near BTS Thonglor, Premium office Sukhumvit, Modern office building Bangkok, Office space Ekkamai

T-One Building

T-One Building is a premium Grade A office tower for rent, developed by Tan Eng Asset Co., Ltd.. The building is located at 8 Sukhumvit Soi 40, Khlong Toei District, Bangkok 10110, and was completed in 2018. Rising 34 storeys, it has become a modern landmark along Sukhumvit Road.

Designed by the world-renowned architectural firm Palmer & Turner (Thailand) Ltd., the tower features a distinctive twisted structure with blue and gold glass façades. The architectural concept emphasizes modern aesthetics while maintaining environmental friendliness, making it suitable for forward-thinking companies and modern urban lifestyles.

T-One Building offers both small and large office spaces, supported by a wide range of amenities such as cafés, restaurants, a rooftop fitness center, and convenience stores like 7-Eleven. Tenants benefit from 24-hour security systems, a total gross floor area of 43,700 sq.m., and 368 parking spaces with an automated car parking system. The building also features a Central Chilled Water System with VAV, ceiling heights of 3.00 meters, and floor-to-floor heights of 4.20 meters, ensuring comfort and efficiency.

The tower is directly connected to BTS Thonglor Station via a skywalk, providing unmatched accessibility. It is also close to premium shopping malls such as Emporium and EmQuartier, as well as the vibrant lifestyle hubs of Thonglor and Ekkamai, well-known for their restaurants, cafés, and entertainment venues.

Building Details

• Gross Floor Area: 43,700 sq.m.
• Rental Spaces: 100 sq.m. / 400 sq.m. / 1,340 sq.m.
• Total Storeys: 34 floors
• Office Floors: 10th – 39th
  • Low Zone: 10th – 20th
  • High Zone: 20th – 46th
  • Transfer Floor: 8th
• Parking: 368 spaces (Automated Car Parking System)
• Elevators:
  • Low Zone: 4 passenger lifts
  • High Zone: 4 passenger lifts
  • 1 service lift and 3 car park lifts
• Air Conditioning: Central Chilled Water System with 24-hour cooling for server rooms
• Ceiling Height: 3.00 meters
• Floor-to-Floor Height: 4.20 meters

Cross Section Usage

• Rooftop: Level 46
• Restaurant: Level 45
• Counter Bar / Café: Level 40
• High Zone Offices: Levels 20 – 39
• Low Zone Offices: Levels 10 – 20
• Fitness Center: Levels 8 – 9
• Car Parking: Level 2, MC1 – MC6
• Retail Area: Levels 1 – 1M

Highlights of T-One Building

• Premium Grade A office tower with iconic design on Sukhumvit Road
• Direct skywalk connection to BTS Thonglor Station
• Flexible office spaces for both SMEs and multinational corporations
• Full facilities including restaurants, bar, rooftop fitness, and retail spaces
• Automated car parking system for maximum tenant convenience

T-One Building stands as one of the premium office landmarks in Sukhumvit, offering modern design, superior accessibility, and integrated lifestyle facilities — making it the perfect choice for businesses seeking a prestigious Bangkok address.