Eventhough these designs are very different and unique, there are overlaying design considerations. These similarities are what bind these designs into it's own "style".
Use of nature
Use of outdoors
Transition of spaces
This point can not be overemphasized! Zambia has close ties to the land, especially in its vernacular architecture. Flowers, trees and plants are used to enhance the beauty. One should be in touch with nature not shut out from it. These designs try to incorporate as much nature as possible. Whether it is the sun filtering through a trellis or the bloom of a colorful flower.
This is an issue which has been addressed many times due to its importance. Architecture is a major element in a societies culture. People build what they see and identify with. Quality structures which use vernacular patterns and materials must be built and showcased so people can see them and believe it is possible and beautiful.
Due to the warm African climate, people use outdoor spaces for many reasons. These spaces can be designed for focus and for functions. Plenty of seating spaces and different outdoor spaces is important. This already is the case in Zambian society, especially in the village setting..
Unfortunately, this is a huge concern. How open is too open? With more openings, you increase the design possibilities and aesthetics but it also creates more security problems. Security bars can be used not as an add-on feature but instead be part of the overall design. Decorative bars and/or removable ones can be used so it does not feel like a prison inside and really take advantage of nature.
The space between indoors and outdoors is an important area. Terraces, trellises, verandahs, balconies and screened in areas all take advantage of being outdoors but still having protection from the elements. These spaces can be designed for a pleasant entry and unique sitting spaces.