The Rudmore Cellars was located at 21 Rudmore Road. It was demolished in 2009.
(Source - Pomeroy of Portsmouth http://www.pomeroyofportsmouth.uk/portsmouth-local-history.html)
A comparison of the Rudmore area and now what is the Rudmore roundabout. The black and white picture was taken late 60s/early 70s before the construction of the M275 motorway.
You can see land that was reclaimed to construct the Continential ferry port on the left hand side. Whale Island is...
Year unknown. Area looks completely different now - this looks to have been taken before the construction of the Rudmore Roundabout and the motorway so perhaps before the 1970s.