A system for delivery of a payload by an autonomous delivery vehicle, said system comprising: a unique identifier having a unique identity, wherein said unique identifier is a target unique identifier placed at a location where delivery of said payload is desired by a user and said unique identifier is a machine readable code recognizable in any frequency that lies within a visible frequency range, an infrared frequency range or an ultra violet frequency range of an electromagnetic spectrum; a navigation system included in said autonomous delivery vehicle, said navigation system comprising a first navigator and a second scanner navigator; and a third party system, said third party system providing a unique identifier information to said navigation system, said unique identifier information comprising said unique identity of said unique identifier and a geophysical location information of said location where delivery of said payload is desired by said user, wherein said unique identifier information is stored associated with a user code in a precise delivery system server, and said unique identifier information is retrieved by said third party system from said precise delivery system server by using said user code; wherein a mobile computing device is configured to scan with a camera said unique identity of said unique identifier and to send said unique identity to said third-party system; and wherein said first navigator navigates said autonomous delivery vehicle to said location based on said geophysical location information and said second scanner navigator scans said location, locates said target unique identifier based on said unique identity and then navigates said autonomous delivery vehicle precisely to said unique identifier for delivery of said payload. a unique identifier having a unique identity, wherein said unique identifier is a target unique identifier placed at a location where delivery of said payload is desired by a user and said unique identifier is a machine readable code recognizable in any frequency that lies within a visible frequency range, an infrared frequency range or an ultra violet frequency range of an electromagnetic spectrum; a navigation system included in said autonomous delivery vehicle, said navigation system comprising a first navigator and a second scanner navigator; and a third party system, said third party system providing a unique identifier information to said navigation system, said unique identifier information comprising said unique identity of said unique identifier and a geophysical location information of said location where delivery of said payload is desired by said user, wherein said unique identifier information is stored associated with a user code in a precise delivery system server, and said unique identifier information is retrieved by said third party system from said precise delivery system server by using said user code; wherein a mobile computing device is configured to scan with a camera said unique identity of said unique identifier and to send said unique identity to said third-party system; and wherein said first navigator navigates said autonomous delivery vehicle to said location based on said geophysical location information and said second scanner navigator scans said location, locates said target unique identifier based on said unique identity and then navigates said autonomous delivery vehicle precisely to said unique identifier for delivery of said payload.