Here are the details of maps for Southsea:
This detailed map is double-sided for maximum coverage. The main map covers most of Southsea with parts of Portsmouth. Coverage extends from Kings Terrace and Landport Terrace eastward to Highland Road Cemetery, and from Abingdon Road southward to Clarence Parade. Features include Havelock Ward area, St Paul Ward area, Southsea Branch railway with East Southsea station, tramways, St Jude's church, St Bartholomew's church, Havelock Park area, Jews Burial Ground, Craneswater Park area, St Paul's church, and many streets of largely terraced housing, with each house neatly shown.
On the reverse we include adjacent sheet 83.16 extending coverage south to include South Parade Pier, Southsea Common. We also include street directory entries for Clarence Parade, Clarence Road, Clarendon Road, Eldon Street, Elm Grove, Livingstone Road, Palmerston Road, South Parade.
The map links up with Hampshire Sheets 83.08 Central Portsmouth to the north, 83.11 Old Portsmouth to the west and 84.09 Eastney to the east.
You might find this Index Map useful.