The theory of knots is a branch of mathematics that is in charge of studying the topological behaviour of lineal entities configuring forms in three-dimensional space. Starting from their spatial character it is possible to establish correspondences with three-dimensional forms of architectural use, constituting a stimulative tool of creativity. The objectives of this work consist on analysing how to enlarge the possibilities of computers aided architectural design (CAAD) from the theory of knots, classifying forms of knots of architectural use and developing a design procedure of architectural shapes, emphasizing concepts of structure, path and form.