Complex sentence: Apple's headquarters in the late 1960s was on 94 Baker Street, after in 95 Wigmore Street and subsequently at 3 Savile Row, the latter known as the Apple Building, which was also home to the Apple Studio.
Split into simpler sentences: Apple's headquarters in the late 1960s was at 94 Baker Street, after that at 95 Wigmore Street, and subsequently at 3 Savile Row. The latter address was also known as the Apple Building, which was home to the Apple Studio.