OMG Ari, this is exactly what my dream space is like!!! I've always wanted a house with an 'airwell' section. It's like a house biosphere, the air within the walls is always humid. One thing though, does the sunlight shine through the section all year round, I mean like when the sun rays shift during certain parts of the year?
Like Andy says, your retirement home is a dream garden waiting for you. The only limitation is space. Most lowland orchids can be grown from anywhere at sea level to highland conditions.
I really really love to grow orchids too, but currently I do not have enough niche space to grow wet sensitive orchids like paphios. I hope to grow them this way where they get enough bright light but won't be overexposed to rain. Or do you control their watering? Please advise, I'm already head over heels looking at your garden space!!
Alvin