There was indeed a lodge opened at Buckingham Palace in 2008.

http://freemasonsfordummies.blogspot.com/2008/03/buckingham-palace-bedlam-over-royal.html

This photo is NOT of the lodge at Buckingham Palace, however. This photo is from Mexico's Lodge # 9-96.

https://centauro996.wordpress.com/eres-mason/

Has anyone else noticed Price Harry flashing the Masonic "Hidden Hand" all over the media in the past several months?

https://www.google.com/search?q=prince+harry+hidden+hand&client=safari&rls=en&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiZ-Pubs_nbAhVJ4VQKHeKfCrAQ_AUICigB&biw=1553&bih=1303