Complex sentence: Augustin Machado built a seven room adobe ranch house and an outbuilding on the southwest side of the lake, that stood until they were razed in 1964, at what is now 32912 Macy Avenue.
Split into simpler sentences: Augustin Machado built a seven room adobe ranch house and an outbuilding on the southwest side of the lake. The buildings stood until they were razed in 1964, at what is now 32912 Macy Avenue.