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Planning application

103 St George's Square Mews London SW1V 3RZ

Decided Westminster 26/05346/CLOPUD Lawful development

Works: Windows or glazing

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Installation of three painted timber sash windows within new openings to the rear elevation.

As published by the council, reference 26/05346/CLOPUD

Application record

Reference
26/05346/CLOPUD
Category
Lawful development
Status
Decided
Received
6 Aug 2026
Validated
6 Aug 2026
Postcode
SW1V 3RZ

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2026.

  • 26/06174/FULL Decided

    103 St George's Square Mews London SW1V 3RZ

    Creation of rear roof terrace on top of existing rear extension.

    Submitted 9 Sep 2026 Full applications
  • 26/01794/FULL Awaiting decision

    103 St George's Square Mews London SW1V 3RZ

    Erection of mansard roof extension, first floor rear extension and roof terrace, alterations to front and rear elevations.

    Submitted 19 Mar 2026 Full applications
  • 26/01650/FULL Awaiting decision

    103 St George's Square Mews London SW1V 3RZ

    Erection of a mansard roof extension and alterations to front and rear elevations.

    Submitted 13 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 6 Aug 2026

    Received by Westminster

  2. 11 Aug 2026

    Added to PlanIndex

  3. 11 Sep 2026

    Status changed to Decided

    Previously Pending.

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 103 St George's Square Mews London SW1V 3RZ

    26/06174/FULL Submitted 9 Sep 2026 50 yards away

    88% historically approved · decision due ~4 Nov

    Creation of rear roof terrace on top of existing rear extension.

    Decided Full applications Extension

  • 103 St George's Square Mews London SW1V 3RZ

    26/01650/FULL Submitted 13 Mar 2026 50 yards away

    88% historically approved · decision due ~8 May

    Erection of a mansard roof extension and alterations to front and rear elevations.

    Awaiting decision Full applications Extension Loft or dormer 21 docs

  • 103 St George's Square Mews London SW1V 3RZ

    26/01794/FULL Submitted 19 Mar 2026 50 yards away

    88% historically approved · decision due ~14 May

    Erection of mansard roof extension, first floor rear extension and roof terrace, alterations to front and rear elevations.

    Awaiting decision Full applications Extension Loft or dormer 22 docs

  • Lower Ground Floor Flat 107 St George's Square London SW1V 3QP

    22/03617/FULL Submitted 31 May 2022 50 yards away

    Alterations to windows and doors and replacement paving finish to front lightwell steps.

    Granted Full applications Windows or glazing 25 docs

  • Lower Ground Floor Flat 107 St George's Square London SW1V 3QP

    22/03618/LBC Submitted 31 May 2022 50 yards away

    Alterations to windows and doors, replacement paving finish to front lightwell steps and internal alterations at lower ground floor level.

    Granted Heritage and listed buildings Windows or glazing 25 docs

  • Flat 12 89 - 91 St George's Square London SW1V 3QW

    25/06565/LBC Submitted 15 Sep 2025 50 yards away

    Replacement of the fifth floor terrace doors with bi-fold doors and the installation of additional roof insulation.

    Granted Heritage and listed buildings Windows or glazing 15 docs

In Westminster

  • 26/07221/CLEUD Awaiting decision

    Ground Floor Flat A 31 Fermoy Road London W9 3NH

    Confirmation of the lawful existing Use of Unit A, 31 Fermoy Road as a 4-bedroom HMO (Class C4).

    Received 21 Oct, published by the council 23 Oct 2026 Lawful development
  • 26/07134/CLEUD Awaiting decision

    5A Motcomb Street London SW1X 8JU

    Confirmation of the planning consent 24/06560/FULL was lawfully implemented within the 3 year time limit period and as such the remainder of the works can be lawfully implemented.

    Received 16 Oct, published by the council 21 Oct 2026 Lawful development
  • 26/06979/CLOPUD Awaiting decision

    15 Bridgewater House Hallfield Estate London W2 6EE

    Use as a private hire chauffeur business (administrative and booking management activities of AGR Chauffeurs Limited).

    Received 13 Oct, published by the council 18 Oct 2026 Lawful development
  • 26/06991/CLOPUD Awaiting decision

    11 Grittleton Road London W9 2DD

    Installation of an external spiral staircase connecting these existing levels (the ground level terrace to the lower-ground level garden).

    Received 13 Oct, published by the council 15 Oct 2026 Lawful development
  • 26/06932/CLOPUD Awaiting decision

    157 Oliphant Street London W10 4EA

    Installation of solar panels.

    Received 12 Oct, published by the council 13 Oct 2026 Lawful development