Plus15 is an innovative indoor navigation application designed to help users find their way inside complex buildings. Users can select a starting point and destination, and the app provides turn-by-turn navigation using 3D images. The admin side of the app utilizes three.js for placing 3D building models on a map, enabling route creation by positioning nodes and attaching images to each node. All 3D assets and images are securely stored in AWS S3. This project was developed in collaboration with Harsingh Sekhon, the visionary behind the idea, who played a crucial role in crafting the 3D models, seamlessly integrating them into the map, and developing a neo4j database to store node information. A special thanks to all the collaborators who contributed to this project, including Arshpreet, Bidzani Mosiashvili, Onkar Singh, and Fortune Agbone, whose efforts were instrumental in bringing Plus15 to life.