PT Summarecon Agung Tbk, through its business unit Summarecon Serpong introduced the third cluster of the Symphonia area, Rossini on April 28, 2018 at Plaza Summarecon Serpong. Rossini completed two previously-launched clusters of Verdi and Vivaldi and received a positive response that successfully sold out at the launch. The Symphonia area becomes a new icon of modern green concept with a far-reaching vision of technology that is in line with the tagline "Embrace The Future With Nature's Lifestyle".

Rossini features a view of Lake Harmony Lake. This advantage is also equipped with many modern features such as solar panels, smart home system and smart door lock for added comfort and sense of security. Rossini is specially designed with contemporary modern architectural style that gives the impression of elegance and is supported with the best layout of building and interior arrangement. In the launching event Rossini, Summarecon Serpong managed to sell 138 housing units