The farm Sederkloof was previously owned by farmer Ronnie Nortje and his family for many years. Its name was Gruisbult at the time. The family used to farm with ostriches, vegetables, sheep and pigs. In 2002 they sold the farm to a couple from Pretoria. Thys and Alice Cilliers were to become the future owners of Sederkloof Lodge. They moved from Pretoria in 2004. Thys had worked as a consulting engineer for 37 years, and Alice was the mother of four children. The children had all finished school, and it was time for a new beginning.
Sederkloof Lodge was constructed by a building team from Willowmore. The leader of the team was Martin Griffiths. Six two-person chalets were built on top of the hill that divides Klein and Groot Naguna gorges. Bakkie loads full of stone, roofing material, doors, sleigh beds, baths, windows and an infinite number of small but indispensable goods were purchased in George and transported into the valley.
With some luck these items survived the trip into the valley on the winding road that leads from Willowmore to the farm, and the climb up the steep mountain track that leads up to the lodge.
One of the biggest challenges was to transport the fibreglass swimming pool safely up to the lodge.
An architect from Plettenberg Bay and a consulting engineer from Pretoria were commissioned to design a lodge that would fit in with the natural environment. The final product is a stylish yet indiscriminate mountain refuge called Sederkloof Lodge, situated on top of one of the smaller hills that overlooks the valley floor and mountain ranges of the Baviaanskloof.