Looking at houses in Vancouver tonight online. The first few things I can see are that it's raining in almost every photo, every house has more bathrooms than bedrooms, and they all come with dishwashers.
What is this machine...a dishwasher?
I'm guessing it's a portal to another dimension. When you close the door and hit the switch you are transported into the future, where your dishes are already clean.
(I'm sad to report the people who bought my house can take over wondering what those two switches do in the front hall. I have no idea either, perhaps they also trigger access to other dimensions. Good luck!)