The tallest parking garage in LA is about 17-stories tall with another 20-stories above. It's a commercial office building that was never really occupied by anyone. It sat vacant for about twenty years, IIRC. Yeah, it actually sat DARK without any lights for that long. It looked totally weird in the LA skyline because this building was just black at night.
Then Forest City bought it and developed it into market-rate residential units, taking advantage of the real estate boom and Downtown LA renaissance. So today, people live in it and there's a pool top of the parking garage. Last I heard, pretty much all 200-something units have been sold.
1100 Wilshire's website:
www.livingabovela.com
From nolandgrab.org