Warwick House St. James's Palace, London, SW1A 1BD

Planning appeal 3374056 at Warwick House St. James's Palace, London, SW1A 1BD (City of Westminster Council) was dismissed on 23 March 2026 by Inspector Veevers A, by written representations. The main issue, as the Inspector framed it: Whether the proposal would preserve the Grade II listed building known as Warwick House or any features of special architectural or historic interest which it possesses.

‘installation of orangery at first floor level above the entrance hall on the east elevation, roof strengthening works and associated works’

Authority: City of Westminster Council
Appeal type: other · Listed Building Consent & Conservation Area Consent Appeal
Procedure: Written Representations
Development: other · Other minor developments
Inspector: Veevers A
Postcode: SW1A 1BD

Main issues, as the Inspector framed them

Whether the proposal would preserve the Grade II listed building known as Warwick House or any features of special architectural or historic interest which it possesses
Whether the proposal would preserve the setting of the Grade I listed buildings Apartment 5, the Palace, Lancaster House and Clarence House
Whether the proposal would preserve or enhance the character or appearance of the St James's Conservation Area

What decided it

The proposal would fail to preserve the Grade II listed building Warwick House and the settings of Grade I listed buildings Apartment 5, the Palace and Lancaster House, and would fail to preserve or enhance the character and appearance of the St James's Conservation Area, causing harm to designated heritage assets that was not justified by the public benefits offered.

What the Inspector cited

Development plan policies: Policy 42Policy 44Policy 45
National Planning Policy Framework: Paragraph 200Paragraph 212Paragraph 213Paragraph 215

How the Inspector dealt with each one is set out in the app, in order: the development plan, national policy, housing land supply, other considerations and the planning balance, beside the letter.

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The decision letter

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The main issues, what decided it, the planning balance and the policies and judgments listed as cited are read from the published letter by Town Planner Pro and are our summary, not the Inspector’s words; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.