Grade I listed · South Gloucestershire

Thornbury Castle, Inner Court

Thornbury Castle, Inner Court is a Grade I listed building in South Gloucestershire, first listed on 21 September 1952. It is one of 45 Grade I entries among 2,086 listed buildings in South Gloucestershire; 12% of South Gloucestershire’s current entries were listed before it.

List entry
FieldValue
NameThornbury Castle, Inner Court
GradeGrade I — exceptional interest
List entry number1128788
Date first listed21 September 1952
Local planning authoritySouth Gloucestershire
Location51.61395, -2.53025 (map)
Official recordHistoric England list entry 1128788

Planning works on this listed building?

Planium checks which consents South Gloucestershire will require for your works on Thornbury Castle, Inner Court, lists what the heritage statement must cover and drafts the application text.

Ask Planium what consent you need

What the grade means for works

Grade I buildings are of exceptional interest — only about 2.5% of listed buildings in England. Any application for listed building consent is notified to Historic England, and alterations are scrutinised closely.

The protection covers the whole building, inside and out, plus fixtures and attached structures. Typical works that need consent: replacing windows or doors, removing walls or historic fabric, changing roof coverings, installing solar panels or external insulation, and adding extensions.

Listed buildings near Thornbury Castle, Inner Court

NameGradeDistance
Walls Enclosing Privy Garden Immediately to South of the Inner Court of Thornbury CastleI59 m
Outer Court of Thornbury Castle and Walls of Kitchen CourtI80 m
Church of St Mary Parish Church of St Mary the VirginI84 m
Group of 28, 17th Century, 18th Century and 19th Century Table Tombs at South East Corner of Parish Church of St Mary the VirginII95 m
Group of Nine 18th Century and 19th Century Table Tombs at South West Corner of Parish Church of St Mary the VirginII98 m
Thornbury War MemorialII103 m
East Lodge to Thornbury CastleII106 m
West Lodge to Thornbury Castle and Adjoining GatewayII109 m
Lock Up and PoundII116 m
Rectory CottageII163 m

Frequently asked questions

Is Thornbury Castle, Inner Court listed?
Yes. Thornbury Castle, Inner Court is on the National Heritage List for England as a Grade I listed building, list entry number 1128788, first listed on 21 September 1952. The full list entry with its description and map is on Historic England’s website.
Do I need consent for works to Thornbury Castle, Inner Court?
Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from South Gloucestershire, in addition to any planning permission or building regulations approval. Like-for-like repairs often do not, but confirm with the council’s conservation officer before you start.
Source: National Heritage List for England, © Historic England 2026, via planning.data.gov.uk. Contains Ordnance Survey data © Crown copyright and database right. Licensed under the Open Government Licence v3.0. Retrieved 12 October 2026. Local authority assigned from the list entry point. This page is a summary — the legal record is the official list entry.