In 1994, the first master plan for the world exhibition EXPO 2000 in Hanover was developed in cooperation with Arnaboldi / Cavadini. The objective was to define a conceptual framework that could coordinate all planning and building processes contributed by the single participants of the world exhibition. The master plan became the central tool to document building and land availability and to ensures the fit of individual projects into the prevailing general urban design and land use philosophy at the same time.
Due to the growing complexity and dynamics of the planning task, AS+P was asked to continually update the master plan and to document and publish it at half year intervals. The last master plan was the 8th update and was termed "EXPO 2000 Hannover - Masterplan Planen und Bauen 06/00".