It is strange in some ways how places commonly talk about houses. In Australia, it is bedroom count - Finland it is sqm and "rooms" (which could mean several things. The houses are generally smaller in Finland by a fair margin - since heating is/was/is again a problem.

A green house sounds great - Hidden would be even better! Do you have space to hide one? We have it in "the plan" for one day, but it isn't going to be hidden in our yard, so it will have to look nice enough...