The 1137 SF condo at the 50th floor of the Trump tower appreciated roughly 300% in 20 years from 1996 to 2016. That seems to match Silicon Valley housing market. So downtown condo could be a good investment as well.
https://www.google.com/amp/s/www.cbsnews.com/amp/news/trump-tower-fire-todd-brassner-victim/
Nigro described the dwelling as “quite large” and said it had “quite a lot of furniture and quite a lot of fire load.” Brassner had lived in the apartment since 1996, according to sale records. Trump Tower opened in 1984. Brassner bought the 1,137-square-foot apartment for $575,000. His bankruptcy proceedings valued apartment 50C at $2,500,000 in June of 2016.