Complex sentence: By 1967 the Foster/Rogers partnership had split up, but Rogers continued to collaborate with Su, developing his ideas of prefabrication and structural simplicity to design a Wimbledon house for his parents.
Split into simpler sentences: By 1967 the Foster/Rogers partnership had split up, but Rogers continued to collaborate with Su. He continued to develop his ideas of prefabrication and structural simplicity to design a Wimbledon house for his parents.