Chepstow Castle is a heritage property in Chepstow, Monmouthshire, Wales, United Kingdom seen on screen in Doctor Who (The Day of the Doctor) (2013), Merlin (2008).
Location: Chepstow, Monmouthshire, Wales, United Kingdom
Verified facts
- Appeared in Doctor Who (The Day of the Doctor) (tv, 2013)
confidence 80/100 · 4 independent sources · SRC-10900, SRC-10901, SRC-11140, SRC-11129
Evidence & sources
- SRC-10900 — https://wales.org/tv-shows-filmed-in-wales/ (Tier 3, reference; retrieved June 2026)
- SRC-10901 — https://www.doctorwholocations.net/locations/chepstowcastle (Tier 3, reference; retrieved June 2026)
- SRC-11129 — Countryfile.com (BBC) — Doctor Who filming locations (Tier 2, reference; retrieved June 2026)
- SRC-11140 — Wikipedia — The Day of the Doctor (Tier 1, reference; retrieved June 2026)
How we verify
Every fact above is independently corroborated by at least two reputable sources and
confidence-scored before publication. Claims that cannot clear that bar are withheld. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.
Frequently asked questions
Where was Doctor Who filmed?
Chepstow Castle, in Chepstow, Monmouthshire, Wales, is a real-world filming location used for Doctor Who.
Where is Chepstow Castle located?
Chepstow Castle is located in Chepstow, Monmouthshire, Wales.