Lavoine grew up in France, where she first studied theater, philosophy, and communication, before turning to interior design.

[1] Pushed and initiated by the interior designer François Schmidt, Lavoine created her first decoration projects at the beginning of the 2000s, and established her eponymous company, Sarah Lavoine, in 2002.

In 2009, she designed a collection of interior furniture and accessories for La Redoute.

In 2012, CFOC (Compagnie Française de l'Orient and China) called on Lavoine to reopen her store.

[3] Subsequently, Lavoine inaugurated the Elle Café in Tokyo, remade the Club 13, opened a fourth shop in Passy, and collaborated with Sushi Shop and with Delacre.