The architecture of Goan Catholics has strong Portuguese, Mughal, and Indian influences. It developed over the long colonial Portuguese India era. Many of the 16th and 17th colonial Catholic churches were built in the Portuguese Baroque style. Most of the historic houses still standing were built between the 18th century and the early part of the 20th century, in a mix of Neoclassical and Gothic Revival styles.
Design influences
Factors that influenced residential design in Goa include:
Protection from fierce seasonal monsoons.
Portuguese Empire rule allowed Goan people to travel abroad; when they returned they brought with them ideas and influences from other countries. The Goan master builders executed these ideas using local building materials, making the Goan house a mixture and adaptation of design elements and influences from other cultures.
The traditional Baroque architecture style of Portuguese-built churches.
A European aesthetic/lifestyle was encouraged to separate newly converted Goan Catholics from their cultural roots. However, they adopted a European outlook but did not cut themselves off from their Indian roots completely, and resulting cultural fusion affected house design.
Exteriors
The traditional pre-Portuguese homes were inward-looking with small windows; this reflected the secluded role of women. The houses opened into courtyards, and rarely opened onto streets. The Catholic houses built or refurbished between the middle of the 18th and the 20th centuries were more outward-looking and ornamental, with balcões and verandas facing the street. The large balcões had built-in seating, open to the street, where men and women could sit together and ‘see and be seen’, chat with their neighbours, or just enjoy the evening breeze. These balcões are bordered by ornamental columns that sometimes continued along the steps and added to the stature of the house. This, together with the plinth, which usually indicated the status of the owners. The houses of rich landlords had high plinths with grand staircases leading to the front door or balcão. Large ornamental windows with stucco mouldings open onto verandas. These may appear purely decorative, but have their origins in similar mouldings in the windows of Portuguese houses. There these elements of style were devices to help sailors identify their homes at a distance as they sailed in. The design is therefore an import but serves a similar purpose in Goa: to help construct the identity of the home. Windows gradually became more decorative, ornate, and expressive. Front doors were flanked by columns or pilasters. Railings were the most intricate embellishment in a Goan house. Pillars, piers, and colours do not seem to be influenced by any style in particular; rather they conform to a rather mixed bag of architectural styles.
Cornices
Country tiles used as a corbel are a feature peculiar to Goa. The effect achieved is aesthetically pleasing, giving the roof projection a solid, moulded appearance.
Gateposts and Compound walls
Gateways consisted of elaborately carved compound walls on either side of the gate posts.
Use of colour
Dramatic and startling colour—initially achieved with vegetable and natural dyes—plays an important role in Goan architecture. Colour was decorative and used purely to create a sensation. With a colour wash, the house looked "dressed" and therefore displayed the economic well-being of the family that lived in it. Here art in architecture performed a social function. However, this was not completely a matter of individual choice, since during Portuguese rule the owner of the house could be fined if his house was not painted. The walls were made of mud and then later of laterite stone; they were usually plastered then painted. Very few buildings are coloured exactly alike and solid colours are used for front facades; interiors are usually in paler colours/white with solid color highlights. This rendering or piping in white is the result of the unwritten rule during the Portuguese occupation of Goa that no private house or building could be painted in white. Only churches and chapels enjoyed this privilege. It is understandable that Goan Christians followed this rule, as white was associated with the Virgin Mary and therefore the virtues of purity and chastity, but, surprisingly, Goan Hindus also respected this practice. As a result of this code, an interesting and aesthetically pleasing trend developed, as competition among neighbours gave impetus to variety.
Interiors
Most houses are symmetrical with the entrance door occupying the place of honour. Typically this front door leads to a foyer which then either leads to the sala or the sala de visita and in some cases the chapel in the house. From here one can also directly enter the rest of the house, which usually revolved around a courtyard. Typically the master bedroom opens into the sala or is close to it. The dining room is usually perpendicular to these rooms; the bedrooms flank the courtyard, and the kitchens and service areas are at the rear of the house. In the case of two-story houses, a staircase, either from the foyer or the dining room, leads to more bedrooms. Consisting of humble burnt earth plastered over with cow dung and hay, or with elaborate patterns made with tiles imported from Europe, the floors in Goan houses have been both workplaces and statements. Almost all Goan houses have a false ceiling of wood.
Churches
The Portuguese regime, mandated the arrival of many Roman Catholic missionaries, particularly the Portuguese Jesuits, who were instrumental in building many churches in Goa. The Goan Catholic style of constructing churches thus came to be influenced by the Portuguese style. Notable are the Se Cathedral and Basilica of Bom Jesus.