Located on the western slope of Guia Hill, the House at No. 30 Estrada da Vitória is a two-storey mansion on top of a garden platform formed by a large stone support-wall. The architecture project was submitted to Public Works Office, in 1924, by Júlio António Eugénio da Silva, member of the Senate and President of the Brotherhood of Our Lady of the Rosary. The construction works were completed after 1930. According to property records, the House at No. 30 Estrada da Vitória was originally a private residence and later changed hands several times, including ownership by private owners and companies. The building now houses the Good Shepherd Sisters.
The organization of the internal spaces, in two floors of asymmetric plan, follows a conventional residential typology of the early twentieth century. The two floors have an almost identical spatial organization, defined by a central axis that marks the entrance in the south elevation and establishes the internal circulations, with the public functions concentrated on the ground floor, and all the private functions of the house on the upper floor. The building solutions adopted are characteristic of the early twentieth century transition period, which combines the use of traditional technologies such as self-supporting brick masonry walls and wooden floors with the use of new reinforced concrete technologies in the roof slab.
The architectural style is a combination of different styles and elements. The overall shape of the building and the composition of the façades present influences of the eclectical architecture of early 20th century, with the introduction of elements from the Art Nouveau and the Portuguese House Movement. Estrada da Vitória was built in the early twentieth century, in a period of transformation of Macao's modern urban landscape. The building at Estrada da Vitória no. 30 and the surrounding Portuguese-style buildings are a testimony to the development of the community at the time, thus having a reference value for historical research.
The building at Estrada da Vitória no. 30 documents Macao's multi-cultural tendencies, from which has originated the characteristic eclecticism of local architecture. The setting of the building on a raised platform and the low construction density contribute to its organic integration into the landscape and vegetation of Guia Hill, forming an urban set coherent with the houses dating from the early 20th century that still persist in the surroundings. Its preservation is therefore fundamental for the maintenance of the original profile of Estrada da Vitória.