I usually work from home, but at the moment I'm working in that zero-energy building. It's not the most beautiful, but it actually generates more energy than it consumes! There is a small garden on the rooftop with vegetables for employees to pick up and wooden picnic tables. The wooden structure holds solar panels and provide shading for the sun.

It could be better looking, but definitely solarpunk in spirit I think. Also, I like that it functions as a normal office building, it's not something built for show-off, but actually practical.

There's info about the building at this website (in Spanish, tho).

P.S. Maybe we need an !architecture community?