To Kit
The building (now Bolitho private school) is still there but much altered. It's grounds must have stretched down to Alverton Street as the building itself is set quite a way from Alverton Street. The grounds now hold such roads as King's Road, along which length you have to travel from Alverton Street and then up another road (the name escapes me although it may be Clements Road) before you reach the building itself.
Alverton Street isn't really as long as it may look. It was the main road into Penzance, previously the A30, from Alverton Manor, after which it was named. It's about a twenty minute walk along its length (done it many times!).
Dairymaid