A video filmed by neighbour Karen James in Coleford shows the size of a fire at Newland House last night.
The country house has been severely damaged after the fire burned throughout the night.
It took 47 fire fighters using breathing apparatus and 6 fire engines to put out a fire at Newland House in the Forest of Dean last night.
The cause of the fire has yet to be identified.
For the full statement from Gloucestershire Fire and Rescue click here