Guinle Building, Art Nouveau building in downtown São Paulo, Brazil.

The Guinle Building is a seven-story Art Nouveau structure on Rua Direita in downtown São Paulo, standing 36 meters tall. Its ochre facade combines rough granite and pigmented mortar with rustic bossage pieces, smooth mortar at ground level, and wooden-and-glass windows with two opening leaves and transoms. Two small structures added above the roof raised it four stories beyond the approved project.

The Guinle family requested authorization in September 1912 to build a headquarters for Guinle & Cia. on Rua Direita. Engineer Sá Rocha surveyed European, US and Argentine regulations, and mayor Barão de Duprat asked Francisco de Paula Souza of the Polytechnic School to vouch for the seven-story structure. Work ran from 1912 to 1916, and the building was inaugurated in 1913.

The facade displays coffee branch motifs that reflected the economic power of coffee production in early 20th century Brazil. These ornaments showed the wealth and pride of the city's business leaders at the time.

The building is located at Rua Direita 49, near Sé station, which is served by the Red Line 1 and Blue Line 2. Its central position makes it easy to visit while exploring other downtown attractions.

Mayor Barão de Duprat doubted that seven storeys could stand and asked Francisco de Paula Souza, director of the Polytechnic School, to vouch for the design. Engineer Sá Rocha had compared European, US and Argentine rules, where limits reached 30 to 70 metres, before the permit was granted.