Vernacular and traditional architecture that has resulted from the medieval timeshave thrived on typological development responding to the regional geo-climate, materiality and socio-cultural contexts. A feeling of the collective and a harmonious settlement ambiance has been noticed in most typologically geared architecture. It is difficult to figure out their genesis by simply examining the final form of a given type. Here one gets a hint of how the types of these three regions may have developed from their rural origins to the sophisticated urban forms. Though not shown here, the plans also have a simple but essential idea that gets retained in the type while being transformed over a period. Little change and sophistication happens in the structure; however, the idea of articulation becomes increasingly decorative while hiding the essential structural system. At times there are signs hidden in the present forms. Such vestiges hint at changes in materials, socio-cultural norms, economy and even disastrous events. Above all, such geneses when recorded and analyzed, gives the understanding of the local knowledge systems and craftsmanship of a given region.