Operetta means light opera, a modern genre of performing arts. The design evolves around a concept of stage, interaction between performers and audience. It combines modern design ideas with 17-18th century design styles. Looking through an EYE at the entrance is a front hall of classic architectural style. Iconic theatre elements such as domes, arcs, and art of the 17th and 18th centuries are adapted for a modern feeling. Through a corridor to the dining hall is of a modern style. Modern lighting system, materials and colours are chosen to create a grand atmosphere comparable to a theatre.

Monique Lee, Interior Design Director of Mas Studio Ltd., columnist on interior designs for Capital Weekly, Hong Kong. She has a passion for art since childhood and has always aspired to design for spatial comfort and simplicity. Her designs are well received by clients as a blend of inspiration and functionality. With solid knowledge in architecture and interior designs, she started her career working with land developers after getting professional qualifications in her early twenties. Year 2009 is a milestone when she founded her own company to further her design career. In 2013, she got her first accolade with one of her designs in an interior design award. Since then, her designs have been gaining recognition in different design awards.

Operetta is run by the Lai Sun Dining (formerly known as Lai Sun F&B Management). It is a high-end hospitality company that owns, develops, manages and operates a portfolio of luxury restaurants. Its’ mother company, the Lai Sun Development Company Limited, is listed on the Stock Exchange of Hong Kong Limited since1988. It is well diversified and its principal activities include property investment, property development, investment in and operation of hotels and restaurants and investment holding. Since introducing its first Chinese restaurant Island Tang in the heart of the financial hub in Central in 2008, Lai Sun Dining is now operating or managing 18 restaurants in Hong Kong, Macau and the mainland China, The company has the vision of becoming a market leader in the hospitality industry by bringing first class innovative dining concepts to its discerning guests. Each of the restaurants has a unique design with exquisite decor and tasteful details. Some of the group's award-winning restaurants, are to this day recognised by the authoritative Michelin Guide: three Michelin-starred Italian restaurant 8½ Otto e Mezzo BOMBANA Hong Kong, two Michelin-starred Italian restaurant 8½ Otto e Mezzo BOMBANA Shanghai, one Michelin-starred restaurants French-Japanese restaurant Takumi by Daisuke Mori, Japanese restaurant Kaiseki Den by Saotome, modern European steakhouse Beefbar and Italian restaurant CIAK - In The Kitchen, as well as CIAK – All Day Italian awarded with a Bib Gourmand.