Here in Oslo, the mixed-use Vertikalen[1][2] recently officially opened. Ground floor is a cafeteria and a restaurant, followed by a several floors of offices, and the rest above is all residential apartments.
While the looks can be argued, the mixed-use seems like an interesting idea. Not aware of too many other such buildings here, so will be interesting to see how it fares.
American cities have developments like this now (Baltimore and Philly for example), but it requires acquiring gentrifiable land/buildings, the capital to renovate them, and demand to pull in the middle-class hipsters to live there.
While the looks can be argued, the mixed-use seems like an interesting idea. Not aware of too many other such buildings here, so will be interesting to see how it fares.
[1]: https://www.archdaily.com/1016072/vertikal-nydalen-snohetta
[2]: https://vertikalnydalen.no/