The present invention discloses a system for locating stock items stored in a building and navigating to the stock items thereof. The system comprises a plurality of weight sensors for detecting a weight of the stock items placed on a storing platform, a video camera assembly to provide a real-time video data of the stock items and a visual appearance of the stock items, a service processing module for receiving a service request from a user via a portable computing device to procure one of the stock items thereof, a plurality of anchor nodes comprising node microcontrollers deployed in a vicinity of the stock items on the storing platform at a predefined set of locations, an augmented reality, AR, processing module for, in response to the service request, providing an AR navigation map using a camera assembly of the portable computing device, and a stock item indicator for providing a visual and/or audio notification to the user upon arrival at the said one of the stock items thereof.