[1] The building, designed by architect Rangsan Torsuwan, features the juxtaposition of Greco-Roman elements—including Ionic columns, a frieze and cornices—with a modernist glass curtain wall.

[4] The building's design became a sensation among Thai architects and developers, starting a trend where Greco-Roman elements were widely used to signify a project's prestige.

[4] Amarin Plaza also featured the first McDonald's branch in Thailand, which was allocated a 460-square-metre (5,000 sq ft) prime spot at the front of the building.

[13][14][needs update] Gaysorn Amarin is located on Phloen Chit Road, near the southeast corner of Ratchaprasong Intersection, in Bangkok's Pathum Wan District.

It is connected via skywalk to the Chit Lom Station of the BTS Skytrain, as well as the other Gaysorn Village buildings opposite and the many other shopping malls in the area.

As of 2017, Amarin Plaza featured 55,000 square metres (590,000 sq ft) of gross retail area in its five storeys, which housed over 300 shops.