The early history of Kadanad is deeply intertwined with the agrarian development of central Kerala. Prior to the formation of the modern state of Kerala, the region fell under the jurisdiction of local chieftains, most notably the Meenachil Karthas, before eventually being absorbed into the Kingdom of Travancore by Maharaja Marthanda Varma in the 18th century.
Over the centuries, Kadanad saw a significant influx of Syrian Christian farming families who migrated into the foothills to cultivate spices, coconuts, and later, rubber. This migration heavily influenced the cultural and demographic evolution of the village. The establishment of St. Augustine's Church became a focal point for community development, education, and social gatherings.
In the 20th century, the introduction and commercialization of natural rubber transformed Kadanad's economy. The transition from subsistence farming and traditional spice cultivation to rubber estates brought unprecedented prosperity, paving the way for better housing, education, and the eventual modern wave of out-migration of its youth to Western countries for higher education and employment.

