Grade I listed · Isles of Scilly

Powder Magazine and Blast Walls

Powder Magazine and Blast Walls is a Grade I listed building in Isles of Scilly, first listed on 14 December 1992. It is one of 4 Grade I entries among 129 listed buildings in Isles of Scilly; 35% of Isles of Scilly’s current entries were listed before it.

List entry
FieldValue
NamePowder Magazine and Blast Walls
GradeGrade I — exceptional interest
List entry number1141187
Date first listed14 December 1992
Local planning authorityIsles of Scilly
Location49.91539, -6.31946 (map)
Official recordHistoric England list entry 1141187

Planning works on this listed building?

Planium checks which consents Isles of Scilly will require for your works on Powder Magazine and Blast Walls, 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 Powder Magazine and Blast Walls

NameGradeDistance
Garrison CottageII23 m
Gatehouse CottageII*30 m
The Guard HouseII*33 m
Outer Walls and GatewayI41 m
Master Gunner'S HouseII62 m
Veronica LodgeII95 m
3, Garrison HillII96 m
Port Light Starboard LightII106 m
Star Castle HotelI118 m
Pier HouseII119 m

Frequently asked questions

Is Powder Magazine and Blast Walls listed?
Yes. Powder Magazine and Blast Walls is on the National Heritage List for England as a Grade I listed building, list entry number 1141187, first listed on 14 December 1992. The full list entry with its description and map is on Historic England’s website.
Do I need consent for works to Powder Magazine and Blast Walls?
Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Isles of Scilly, 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.