In Ultra Density System three blocks of parking structure are present on both sides of the central robotic unit. The central robotic unit takes the car from entry bay and parks in the nearest outer free slots. After filling the outer slots, cars are parked in the inner slots. To retrieve a car from outer slot, two cars in front (if present) is shifted to another free locations. Ultra Density System is designed on the view to obtain maximum space utilization. It can be utilized for large scale parking purpose. This is one of the highly advanced parking system in the world.