DOUBLEBOIS, Cornwall – Doublebois House. 

Fellowes Prynne’s notes of 1897 say “additions done” at what he named Doublebois Hall.  The document listing it as Grade II states that the original building of 1883-5 was extended in 1896.  The listing states

Extended on south side with gabled rear wing, originally chapel.

The full text of the listing can be seen here:  DOUBLEBOIS HOUSE, Dobwalls – 1140051 | Historic England