tilly, i know syko's work well, and did think your houses were similar, not the same, but similar, and as nbg said, prairie mouse has also made houses like that. just develop your design further, personalise it to you.
as far as my own situation is,
well, can, worms, everywhere, just about sums it all up.
i've amended my blog post as the matter is over, but i hope that this can stay and serve as a lesson to others. i have had quite a few emails and 'threats' from the other party and their family, it has been a huge learning curve for me.
if/when you come across anyone who you suspect is copying your work, walk away, don't even lower yourself to waste time dealing with it, just simply move on and design something new and better.
end of.