This seed provides the player the opportunity to move into a witch's house, not to bother the first time with housing. Seed is designed for the version Minecraft PE 0.15+.
The picture which sees the player when you are prompted:
I think, to note here the witch's house, is not difficult.
After development, the player, of course, want development and new, more sturdy, homes. For this next to the house there is a meadow for construction:
And finally is the witch who is already waiting for You in his cabin: