Preservation Design: "Maybe a house is a home only once it can appreciate your jokes." (Negroponte, 1975) Through the development of artificial intelligence capabilities, computer aided design (CADD) systems will become interactive environments capable of learning the spatial and stylistic preferences of individual users. The input of preferential information will activate a filtering mechanism which will permit the computer to retrieve information tailored to the individual's particular needs from a large database. With each use of the system, the computer will assimilate a greater "understanding" of the user's preferences and design methods. As a consequence, the relevance of information provided automatically by the CADD/AI filter will increase, ensuring an efficient information retrieval process and mitigating the threat of information gluttony. Forecasting Historic Simulation Material Attributes and Performance Capabilities Interactive Buildings Preservation Spatial Data Relocation Design and Construction The Preservation Process at Work