[1][2] All Seasons Property planned to build a ฿14 billion (US$560 million) structure with five towers that would include the Conrad Bangkok hotel.

[4] In 2003, Riduan Isamuddin, who was an associate of Osama bin Laden and who had been arrested in Thailand, told CIA interrogators that Al-Qaeda had planned to strike Conrad Bangkok.

[9] The Bangkok Post's Pongpet Mekloy praised the initiative, writing, "The facelifted interior subtly but beautifully blends Thai elegance with modern feel and practicality.

[11] When the hotel opened, All Seasons Place had American chains including Starbucks and Burger King and upscale shops.

[12] The hotel's interior design was largely architected by the United States firm Wilson and Associates' Singapore division.

[13] According to The Daily Telegraph's John Yeager about the hotel's architecture, "the Conrad is quite unlike the standard tower or upright slab" because it has an "unusual octagonal footprint".

[9] As part of the hotel's 2018–2019 renovation, it installed coated reception desks and floors in the lobby with marble tiles, which the magazine Business Traveller said imbues it with "a modern, stylish look".

[9] The redesign of the interior was led by Cheng Chung Design's Ray Chuang who used oak, teak, the gold colour, and "brushed-bronze".

[3] One restaurant is KiSara (renamed from Drinking Tea Eating Rice in 2013), which serves Japanese cuisine and offers teppanyaki-style food.

[13] Michael Fiebrich, who was the project's principal designer, said, "The concept of the restaurant is really about the contrast of the crisp contemporary architecture of the room and the more fluid natural forms within.

[19] On the 29th floor, the hotel has the Executive Lounge, which serves a variety of cuisines such as dim sum, a section where the restaurant makes egg dishes for customers, and Western breakfast food.

[9] Beside the swimming pool is the City Terrace-Pool Restaurant, which is casual dining eatery that serves light snacks and fresh juices.

[21] Writing in the Hubert Burda Media publication Prestige, Mary Lsmithgul praised the restaurant, stating, "With a cosy-meets-sophisticated vibe, tasteful delicacies and an impressive selection of aperitifs, the upscale dining destination makes an ideal spot for nights out with the family, or a refined meet up over bubbly at the heart of Bangkok.

[18] Fodor's said, "The Diplomat Bar is famous amongst embassy staffers for their great martinis, 4-hour Happy Hour, and live music throughout the week.

[9] The restroom is separated from the rest of the hotel room through a see-through divider, though curtains can be pulled down to achieve solitude.

[3][11] Business Traveller magazine concluded, "The rooms are sleek and sizeable – a valuable find in any Asian capital – and the interesting mix of urban and resort styles gives the property a professional yet relaxing atmosphere overall.

[9] John Yeager of The Daily Telegraph praised the hotel's customer service, writing that all employees "down to the most junior maid" could fluently converse in the English language.

In her book Thailand's Luxury Spas: Pampering Yourself in Paradise, the author Chami Jotisalikorn said it "has the feel of a five-star city spa, with a veneer of sop hesitated luxe combined with professional efficiency".

[7] In 2008, as the owner of a group of Mercedes-Benz limousines, the hotel used them most of the time to transport guests who have arrived at or are heading to a Bangkok airport.