I’m very new to Solarpunk, but Hundertwasser seems to gel very nicely with what I’ve seen of the ethos.

He has designed, and actually implemented many buildings which tightly integrate nature into the urban environment.

His political views leave a LOT to be desired but his work is extremely inspiring.

https://hundertwasser.com/en/ecology/arch75_das_huegelwiesenland_1094