Treehouse phase 2 complete

All the walls are now up. I need to add some cladding to the outer walls but there is some temporary timber to stop accidents.

Timber is phenomenally expensive these days (it's the Chinese, apparently) so I'm thinking about a flat root instead of a slopped one. My original estimated budget was £150 but it's £400 already. I wanted a cedar shingle roof but that would have been £200!!