In 1993 Tewin Society raised the idea of creating a new area of woodland in the Parish and approached Tewin Parish Council for assistance.
Tewin Parish Council successfully received a grant of £3000 from East Herts Council’s Environment Initiative Scheme for the purpose of purchasing some land which would be planted up to create an amenity woodland for the village, ramblers and a refuge for wildlife.
The piece of land purchased from John Barton formed the corner of a field (formerly known as Little Brown Field) near Upper Green and covered an area of approx 1.1 acres.
Jack Bird drew up a planting plan of mainly native broadleaf tree species with oak and hornbeam predominating.
A new footpath was created to improve access to the site.
A Forestry Commission Woodland Grant was obtained to cover the costs of the trees and associated materials.
The woodland was planted in November 1994 by local volunteers and the pupils of Tewin Cowper Endowed School with assistance from the Countryside Management Service.
Tewin Parish Council decided to name the new plantation “ Hundred Year Wood ” in commemoration of the centenary of the existence of Tewin Parish Council.