Question:
Does a tree house in one's yard require a mezuza if it has the requisite dimensions? With a bracha?
Answer:
If the tree house is a permanent edifice and has the right dimensions one should affix a mezuzah. Regarding a bracha, since it is not used for sleeping a bracha should not be recited..
Sources:
Y:D 286:2 & 11 also Pischey Teshuvah 10
