Grade I listed · Northumberland

Outer Bailey Walls and Attached Farmbuildings

Outer Bailey Walls and Attached Farmbuildings is a Grade I listed building in Northumberland, first listed on 24 May 1988. It is one of 170 Grade I entries among 5,605 listed buildings in Northumberland; 83% of Northumberland’s current entries were listed before it.

List entry
Field	Value
Name	Outer Bailey Walls and Attached Farmbuildings
Grade	Grade I — exceptional interest
List entry number	1044803
Date first listed	24 May 1988
Local planning authority	Northumberland
Location	54.99121, -1.99985 (map)
Official record	Historic England list entry 1044803

Planning works on this listed building?

Planium checks which consents Northumberland will require for your works on Outer Bailey Walls and Attached Farmbuildings, 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 Outer Bailey Walls and Attached Farmbuildings

Name	Grade	Distance
Aydon Castle Main Buildings and Courtyard Walls	I	36 m
Stable Cottage	II	722 m
Aydon House	II	745 m
Aydon South Farmhouse	II	748 m
Garden Walls, Gate Piers and Privy to South and West of Aydon South Farmhouse	II	762 m
Farmbuildings North-East of Aydon North Farmhouse	II	775 m
Aydon North Farmhouse	II	775 m
Garden Walls and Gate Piers to South and West of North Farmhouse	II	776 m
Outbuilding to East of Aydon North Farmhouse	II	787 m
Hay Barn at Rear of Outbuilding to East of Aydon North Farmhouse	II	788 m

Frequently asked questions

Is Outer Bailey Walls and Attached Farmbuildings listed?

Yes. Outer Bailey Walls and Attached Farmbuildings is on the National Heritage List for England as a Grade I listed building, list entry number 1044803, first listed on 24 May 1988. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Outer Bailey Walls and Attached Farmbuildings?

Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Northumberland, 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.