I am looking to screen my property from a neighbours window, and to do this I only require a tall/narrow evergreen. Height wise it needs to be growing to a maximum of 4-5m (be that it's mature height OR a height I can keep it to with a bit of trimming). Something like an Italian Cypress, but i believe these can grow way taller than this and that would be an issue.
Aspect wise it'll be getting 3-4 hours of sun in the summer.
Any advice/thoughts appreciated.