Grade I listed · Windsor and Maidenhead

Mausoleum of the Duchess of Kent

Mausoleum of the Duchess of Kent is a Grade I listed building in Windsor and Maidenhead, first listed on 2 October 1975. It is one of 23 Grade I entries among 956 listed buildings in Windsor and Maidenhead; 44% of Windsor and Maidenhead’s current entries were listed before it.

List entry
Field	Value
Name	Mausoleum of the Duchess of Kent
Grade	Grade I — exceptional interest
List entry number	1117780
Date first listed	2 October 1975
Local planning authority	Windsor and Maidenhead
Location	51.47380, -0.59677 (map)
Official record	Historic England list entry 1117780

Planning works on this listed building?

Planium checks which consents Windsor and Maidenhead will require for your works on Mausoleum of the Duchess of Kent, 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 Mausoleum of the Duchess of Kent

Name	Grade	Distance
Bridge from Island Leading to Duchess of Kent'S Mausoleum	II	33 m
The Royal Mausoleum	I	112 m
Gothic Ruin of Temple by Lake in Frogmore Gardens	II*	162 m
Frogmore House	I	176 m
Lych Gate from Drive to Royal Mausoleum in Frogmore Grounds	II	177 m
Lodge North of Lych Gate from Drive to the Royal Mausoleum in Frogmore Grounds	II	177 m
Frogmore House Stables	II	191 m
Kiosk to South East of Cottage in Frogmore Grounds	II	231 m
Tea House to South of Frogmore House in Frogmore Grounds	II	261 m
The Aviary	II	284 m

Frequently asked questions

Is Mausoleum of the Duchess of Kent listed?

Yes. Mausoleum of the Duchess of Kent is on the National Heritage List for England as a Grade I listed building, list entry number 1117780, first listed on 2 October 1975. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Mausoleum of the Duchess of Kent?

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