Value Growth Design enables an object to increase its value over time, and is based on a new design paradigm, Timeaxis Design. Timeaxis Design incorporates the viewpoint of time into the theory and methodology of design. However, only a few works have considered the application of Value Growth Design to actual artifacts. Herein, we investigate existing Value Growth Design cases, and employ cluster analysis based on the Multispace Design Model and the Value Growth Model. As a result, patterns of value growth are revealed. Furthermore, by applying perspectives proposed to be effective, we extract nine principal factors of value growth.