I don’t remember the source of the study, but commutes are one of the most important factors in happiness at work. Optimize for short pleasant commutes on bike or train, as opposed to bus or car.
I believe that:
* especially long, unpleasant commutes can be a significant source of unhappiness
* shorter commutes are _consistently_, across different people, a source of happiness (whereas any other thing might bring a lot of happiness to some people but not so much to others)
But I think it's absurd to think that for any given person, a short commute is high on their list of things to make them happy or fulfilled (especially if they're not already actively unhappy with their commute).