SJ Infinite I Business Complex is a premium Grade A office tower located at the prominent junction of Vibhavadi-Rangsit and Phahonyothin Roads. Completed in 2015, the building was developed by WHA Premium Growth Freehold & Leasehold REIT (WHART) (formerly an out-of-court restructuring project from the former Shinawatra group). This 31-storey modern skyscraper is recognized for its unique "L-shaped" architectural profile and sleek glass curtain wall that offers panoramic views of the adjacent Chatuchak Park. The building provides approximately 21,500 square meters of net lettable area, featuring high-specification office spaces with a typical floor plate of 1,000 square meters and a 2.85-meter ceiling height. It is designed with energy efficiency in mind, utilizing heat-reflecting glass and advanced building management systems.

Situated at 349 Vibhavadi Rangsit Road, the complex occupies a strategic gateway location connecting the northern suburbs to central Bangkok. It offers excellent transit connectivity, being approximately a 10 to 12-minute walk (about 800–900 meters) from both BTS Mo Chit Station and MRT Chatuchak Park Station. For added convenience, the building provides a dedicated shuttle service to these transit hubs. Its proximity to the Don Mueang Tollway entrance also ensures rapid access to Don Mueang International Airport.

The building attracts a high-caliber mix of multinational and leading Thai corporations, particularly those in the logistics, technology, and energy sectors. Key tenants include WHA Corporation, AstraZeneca, and Garena. The ground floor and podium levels feature a retail zone with a range of cafes (such as Starbucks), convenience stores, and banking services to support the daily needs of the professional workforce.

SJ Infinite I Business Complex is a single ownership Commercial Building with offices available for rent.

Flex and serviced office solution is available from Regus operating in this building. Click Here for rates and promotional packages.