Complex sentence: It suffers from extensive water infiltration and structural issues, and city commissioners have called it a "white elephant" and considered demolishing it; as of 2015, city officials are considering spending $175 million to fully renovate the building.
Split into simpler sentences: It suffers from extensive water infiltration and structural issues, and city commissioners have called it a "white elephant" and considered demolishing it. In 2015, city officials began considering spending $175 million to fully renovate the building.