As to ensure absolute professionalism and avoid any issues which relate to photographing on private property as a result of not seeking permission or completing a location release form. Therefore I contacted The Trentham Estate prior to any completion of photography on this site.
I promptly received a respnse from Amanda Dawson, The Marketing and Promotions Manager who granted me permission on 07/03.
From this experience, it has highlighted the fact for me, that approaching companies and businesses seeking permission or similar requests can be rather daunting, however if you do not seek permission, you as a photographer might be limiting yourself to potential locations where you can readily gain access when requested.
This experience has enlightened me to seek permission if it is necessary.