Hi Lucy
There are several here in Brighton. A self-build project a few years back had all turf/ sedum roofs. I did have some pix somewhere, I’ll have a look, but no promises as it was awhile back. The houses are off Ditchling Rd, on the right, I dare say they are on a website somewhere. I have been trying to get clients to let me do one for a while now. anything new or different you always need to show them an example first or the just don’t get it. We build small scale ‘earthships’ (tyre houses) too. 2 of my guys are in Cornwall building one right now. i have managed to get 1 client to let me do 1 small retaining wall, so I can use that to get others to do the same.
The Centre for Alternative Technology in Wales has some turf roofs too. they mat have some px thy could let you have.
Hey good luck with that,
Jonathan