Pedra Líquida (Liquid Stone) was created in 2006 by Alexandra Grande, Daniela Coutinho and Nuno Grande, and it is based at Oporto City Centre. Its main activity relates architectural design, engineering and building management. The office is structured by a strong teamwork, based on the dynamical contribution of different architects such as Joana Couceiro, João Crisóstomo, Luís Sobral, Ivo Lapa and Gerson Rei.
Pedra Líquida aims to live and work for the city cultural consolidation, involving markedly the rehabilitation of urban buildings. Its main projects are related to house renovation (single and collective), new and creative residential and hotel concepts, exhibition design and curatorship.