Neighbor
To dream of a neighbor you actually have represents an aspect of your personality based on your more honest feelings or memories of that person. Ask yourself what one thing stands out the most about that person and try to see how that quality may apply to yourself or to a situation you are experiencing. Aspects of your personality that for good or bad are "living beside you" in waking life.
Additionally, consider the number of the apartment or home the neighbor lives in. The style or size of home may also have meaning.
To dream of a neighbor that you don't recognize in waking life represents something new in your life that you are always noticing or putting up with. Positively, a neighbor may reflect feelings of simply asking for help being easy. Negatively, it may reflect a problem that is always around or that you are persistently putting up with.
Alternatively, dreaming about a neighbor may reflect waking life issues with that neighbor.
Example: A man dreamed of seeing his male neighbor wearing a dress in a hallway outside a doorway. In waking life he was waiting for something important to happen while putting up with persistent uncertainty about how dangerous the situation actually was. In waking life he had uncertain feelings about his neighbor possibly getting angry at him.
Neighborhood
To dream of a neighborhood you've never been in may reflect feelings about unfamiliar situations you experiencing in waking life. New social situations, new jobs, new friends, new success, or some kind of situation that completely different than what you are used to in your normal life. Feeling anxiety or uneasy about a new situation.
To dream of a poor neighborhood may represent feelings about some area of your life feeling completely pathetic or unluckier than you.
Negatively, a poor neighborhood may reflect feelings about yourself feeling stuck with failure, poor luck, or jealous enemies who keep you down. Feeling that nothing you do helps you. Feeling that everyone you know is a loser. Feeling surrounded by people who are stupider than you. Feeling surrounded by people who are less fortunate than you. A complete lack of love and support in a situation. Feeling emotionally impoverished or neglected. New situations that feel hopeless or empty.
To dream of a rich neighborhood may reflect feelings about your entire life feeling better or stronger than it used to be. Situations or social interaction that feels more sophisticated. Feeling that a new situation is offering more opportunities and power than you are used to. Feeling that a situation is more supportive or loving than usual.
Negatively, a rich neighborhood may reflect feelings of not deserving success or improvements in your life. Jealousy of other people having a completely better life than you. New situations where you feel that you are not good enough.
To dream of an old neighborhood may reflect feelings about having to return to old social situations you have avoided or not been involved with for a long time. Old arguments returning. Old ways of living being repeated. Losing a way of living and having to return to your old way of living. Situations were you are completely immersed in your past or former habits.