Usually the buildings indicate you and the people you are interacting with. The outside place represents the people you are surrounded by, the situations that are happening around you. The representation of the outdoors shows the people you are communicating with. If the outside is nice and tidy, you are getting along with the right people, if it is messy and dirty, you should reconsider who are your friends and where you got yourself into.
Read more about dreaming of Outdoors/outside in other dream meanings interpretations.