It was decommissioned in April 1996 and was later transformed into Gunwharf Quays.
Parts of HMS Vernon are still standing, including the famous gates – which now lead into the shopping centre.
Why not take a trip down memory lane and look through our gallery of retro photos from HMS Vernon.
MORE RETRO PHOTOS: Nights out at Gunwharf Quays | Portsmouth shops in the 90s | HMS Hermes
18. HMS Vernon
Dating from 1790 the former administrative building in HMS vernon. The administrative offices of HMS Vernon circa 1920. There is no Vernon Building emblem in the pediment. Photo: The News archive
19. HMS Vernon
Wren Lesley Edwards, of HMS Vernon, as she tackles one of the trails. Photo: The News archive
20. HMS Vernon
HMS Vernon main gate. Taken some time in the late fifties /early sixties we see the main gate to HMS Vernon. The very attractive entrance is enhanced by the trees, now cut down, and the avenue seen just inside the gate. On the wall to the right can bee seen the letters in yellow SWS. This pointed to the location of a static water supply during the war. The letters can still be seen on many house walls within the city. Overhead can be seen the trolleybus wires from Park Road. Photo: The News archive