The first thing that is everyone's response to this issue always says the same thing..."It's because of your sub-conscious." I'm not going to berate the obvious, instead I'm going to try to analyze my own experience and hopefully find some folks that have had the same dream.
On a semi regular basis I find myself wandering around inside of the same identical home. It's warm with tall ceilings and I'm always excited to move into another room. In some rooms of the house I get an uneasy feeling like there's something going on in there but for the most part, I feel at home there.
The optimist in me wants to believe that this is an indication of my inside desire to find as much out about myself as possible. The pessimist in me says "Get off the couch & go outside".