His buildings are sustainable, low-cost, low-maintenance and blend in well with the natural surroundings. Pearce designed the Eastgate Shopping Center in Harare, a building that has sustainable temperature regulation system via tubes within the walls that circulate air throughout the building. This innovation employs the same mechanisms used by termites in designing their anthills that ensures the chambers within are always well ventilated. He also designed the CH2 in Melbourne, Australia.