Inaugurated in 1725, the Praça do Campo Novo is attributed to the architect Manuel Pinto de Vilalobos, who during the first quarter of the 18th century carried out various civil works for the Archbishop of Braga.

With a quadrangular plan, the square opens onto four streets, the streets of São Gonçalo, Santo André, das Oliveiras and Guadalupe. The sides of the square are lined with two-storey residential buildings, the first with a door and window or two doors, the second with balconies.

The centre of the square houses a garden with a monument to the memory of King Pedro V, erected in 1879 in Campo de Santana and moved to Campo Novo around 1915. At the northern end a granite fountain was built, surrounded by a staircase, and behind it the palace of the Count of Carcavelos was built in the 19th century, which substantially changed the rhythm of the square.