Llansannor Court as Torchwood House (dining room)
The Doctor has dinner with the Queen.
Source: The Doctor Who Locations Guide
“Tooth and Claw” Filming Locations
Doctor Who episode “Tooth and Claw” was filmed in Newport in the United Kingdom.
Headlands School as Torchwood House (bedroom/cellar/hallways)
Rose is talking to a maid when she is captured by the monks and locked in the cellar with the creature.
Source: The Doctor Who Locations Guide
Tredegar House as Torchwood House (kitchen/observatory/library)
Sir Robert shows the Doctor and the Queen his telescope.
Source: The Doctor Who Locations Guide
Gelligaer Common as Scottish Moorlands
Rose and the Doctor emerge from the TARDIS in front of the Queen's carriage.
Source: The Doctor Who Locations Guide
Penllyn Castle as Torchwood House (courtyard)
Some monks arrive at the house and attack the servants.
Source: The Doctor Who Locations Guide
Craig-Y-Nos Castle Hotel as Torchwood House (front)
Rose and the Doctor arrive with the Queen at the country manor.
Source: The Doctor Who Locations Guide