The architecture in the Algarve is quite Mediterranean. We have whitewashed houses, and white is still the predominant color for the exterior of the houses here. We have pretty large windows. Although there is an increasing number of structures in the modern architecture style now, 90% of the buildings and houses here are still quite traditional.
Sometimes, they paint in two tones but white is still the main color; they only paint a different color on the windowsills and door ledges. We still have traditional tile pitched roofs that are often made with traditional tiles made in regions such as Santa Catarina, which is a very traditional tile and aesthetically very pleasing. Many new homes here in the Algarve are still built in the traditional way.
The architecture also depends on if you are building on an apartment block in a city, in which case, these structures tend to be more modern. You will see that there is more use of glass, stainless steel, and they do not build large balconies. But when you are talking about villas, you will see that there is still a very big demand for traditional-looking properties, even if their interiors are modernized.
(Monsaraz, Portugal, pictured.)