Residents report that SL09 WUB is owned by a resident in the adjoining controlled parking zone (Zone G).
This can be verified using Google Maps Street View, where for several years this vehicle has had a valid residents permit for the area in which the owner lives, and has been parked at the owner's residence.
The vehicle now displays an expired resident permit in the windscreen.
The owner has not moved house but appears to have opted to use Hollingdean to park and store their vehicle full-time rather than renew their own resident permit further.
This Alfa Romeo has been reported as using Hollingdean for free parking since July 2022.
This means their vehicle uses up some of the little available space for residents of Hollingdean, particularly in the congested area around Hollingbury Crescent and Stanmer Park Road: closest to the owner's actual residence in Zone G.
Feedback suggests that although the vehicle is moved reasonably regularly, it is often also inconsiderately parked.
Photographs provided show the vehicle left partially overlapping a local driveway, blocking a disabled space, and often parked either on the pavement or a significant distance away from the pavement, causing bottlenecks.