Small Floating Wizard's Cottage.
Resource Pack is Conquest.
There are two command blocks in the build. For them to work you need to break the pressure plate and covering block and enter the following:
In the lower command block: /tp @p ~0 ~20 ~0
In the upper command block: /tp @p ~0 ~-20 ~0
Then replace the block and pressure plate and you will teleport up and down out of the house.
You are welcome to do with it what you want so long as I am credited for the original build.