Palácio São Domingos, Government palace in central Niterói, Brazil.

Palácio São Domingos is a two-story building located on Marechal Deodoro Street with classical architectural features marked by a recessed central section that creates visual balance. The structure features symmetrical proportions and detailed stone ornaments that characterize the entire facade.

Built in the early 1800s for a slave merchant, the building later served as Emperor Pedro I's summer residence before being converted into provincial government headquarters in 1834. Since then it has housed various state administrative offices.

The palace displays a blend of architectural styles with curved arches and intricately worked stone cornices that reflect how public buildings in Brazil evolved over time. Its facade shows the aesthetic values and construction techniques that were important during its early period.

The palace stands at Rua Marechal Deodoro 30, at the corner of Rua Visconde do Uruguai in central Niterói. It is not an active government office: the building is largely abandoned and closed, with only partial use by a popular restaurant and a bank branch. Expect no visitor facilities and check locally before going.

The original property was divided by eight gates that separated the main building from a lower ground level area. This space was designed for housing horses and stables, revealing how residential and functional areas were kept separate in that era.