Within the last years, architectural design has shown great interest in the design of new and complex geometries, commonly known as 'free-form' architecture. The lack of constructive feasibility of the designed architectural objects led us to consider discrete IFS- Modeling for architectural use. The aim is to develop a powerful tool for the generation and the fabrication of freeform architecture. Based on the findings of BARNSLEY, it uses controlled iterated function systems (IFS). The generated geometric figures are further treated by a set of post processing procedures - a set of specific geometric transformations, which allow converting the geometric data directly into construction elements. The method is tested and verified by the construction of prototypes, which prove the efficiency of the proposed method. The developed tool shows high potential to produce accurate free-form timber constructions at reduced design and production costs.