w orking together - pr otecting our coastline www.portsmouth.gov.uk Southsea short list Sub-frontage 2 - Clarence Pier Options considered Existing site & extent of set-back defence (Option 3 only) Description How it might look Estimated cost Option 1 Vertical Primary Defence Resurface & raise existing wall Option 2 Sloping Primary Defence Stepped slope Option 3 Set-back defence Resurface existing wall and build secondary set-back embankment £2.5m-£4m £4.5m-£6m £3m-£4m Examples of preferred option Islay (Encasement), Old Portsmouth (set-back wall) and a typical earth bund