A listing and notification server receives real estate listing information from a mobile device of a real estate agent situated at a location where a listing agreement has moments before been entered into. The mobile device is preferably a smartphone that allows the agent to take various photos and video of the property, which can be uploaded together with a description of the property. The server pushes notifications of the new listing to a plurality of subscriber computing devices. The subscribers may include persons who indicated interest in buying real estate. The system can be configured such that notifications are sent to subscribers based on predetermined criteria, e.g., a specified price range. The listing information is added to a real estate listing database, which is a closed database searchable only by the subscribers. After a few days, the listing is removed from the real estate listing database to ensure freshness.