We would have to completely redefine what we mean by workplace. Unless your job entails actively dealing with people or working in specialist facilities it can be done from home. Shops, schools and medical facilities tend to be within neighbourhoods.
But properly implemented WFH intertwines your job with your life so that your output is measured in projects completed rather than time spent on them.
We then move to infiltrate local amenities to replace physical offices. The coffee shop becomes the meeting room, the local pub your cafetaria and walking the dog can also involve a catchup with a colleague on important issues. Proper WFH is not isolation of employees but a dissemination of them.
At the same time we can put together other initiatives like converting all those old offices into vertical farms and creating jobs and wealth for those that live closest to the centre of the city, often the poorest areas. Food miles and costs are reduced.
This is then coupled with a larger decentralisation of government so that we return to the older idea of the city-state vs the nation state with localism becoming dominant.