Complex sentence: The Universidad's athletic department is headquartered at the Polideportivo, and there are also, at ground level, offices for the various sports at the UAS, as well as a recreation center for various indoor sports.
Split into simpler sentences: The Universidad's athletic department is headquartered at the Polideportivo. There are also offices at ground level for the various sports at the UAS, as well as a recreation center for various indoor sports.