With Unkei, Kaikei was involved in the rebuilding project of major temples in Nara, including Todai-ji Temple and Koufuku-ji Temple, which had sustained devastating damage when TAIRA no Shigehira ordered the burning of the city in 1180.
快慶は運慶とともに、平重衡の兵火（治承4年・1180年）で壊滅的な被害を受けた東大寺、興福寺など南都の大寺院の復興造仏事業にたずさわった。