|Location Map ( geo)|
|Via:||Nursling (city boundary)|
|Meets:||A35, C500, C69, A3057, C20, A33|
|Route outline (key)|
The C20 is a distributor road around western Southampton.
Beginning at Hollybrook Roundabout, the C20 heads to Lords Hill, first by heading north on Hill Lane, and Lordswood Road to Aldermoor. From Aldermoor it takes Lord's Hill Way - a typical new town major road, with underpasses for pedestrians and space for dualling and a short section of D3 over a Grade Separated Junction - through to the A3057 at Lordshill Roundabout.