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Planning application

14 Wilton Place London SW1X 8RL

Awaiting decision Westminster 26/02418/FULL Full Planning Permission Application

Works: Extension

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Excavation of a basement beneath the footprint including removal of the conservatory to create a new rear extension, with a new stair leading down to the courtyard terrace at lower-ground level. Installation of plant equipment. including Internal and external alterations to a residential property. (Linked with 26/02419/LBC)

As published by the council, reference 26/02418/FULL

Application record

Reference
26/02418/FULL
Type
Full Planning Permission Application
Status
Pending
Received
14 Apr 2026
Validated
14 Apr 2026
Ward
Knightsbridge & Belgravia
Postcode
SW1X 8RL

Site history

Applications at this address on the Westminster register

This site has had 5 applications since 2026.

  • 26/06551/ADLBC Decided

    14 Wilton Place London SW1X 8RL

    Details of new sash window details and acoustic enclosure including colour and material pursuant to condition 4 (i and ii) of listed building consent dated 21 July 2026 (RN: 26/02419/LBC).

    Submitted 23 Sep 2026
  • 26/06298/ADFULL Decided

    14 Wilton Place London SW1X 8RL

    Details of new sash windows and the acoustic enclosure pursuant to Condition 7 of planning permission dated 21st July 2026 (RN:26/02418/FULL)

    Submitted 15 Sep 2026
  • 26/03375/TPO Awaiting decision

    14 Wilton Place London SW1X 8RL

    1 x evergreen manolia (front): Reduce the height and overall radial canopy spreads by a maximum of 1m. This will enable a maximum clearance of 1.5m is to be achieved between the outer western canopy and the property frontage. The retained canopy should measure no less than 3m to the north and south and 2.5m to the east and west. Trim the underside of the canopy to create a clearance height of 2.5m over the surrounding gardens and public highway. Crown thin the inner canopy by 10% to achieve an even density of foliage.

    Submitted 21 May 2026 Trees
  • 26/02419/LBC Awaiting decision

    14 Wilton Place London SW1X 8RL

    Excavation of a basement beneath the footprint including removal of the conservatory to create a new rear extension, with a new stair leading down to the courtyard terrace at lower-ground level. Installation of plant equipment. including Internal and external alterations to a residential property. (Linked with 26/02418/FULL)

    Submitted 14 Apr 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 14 Apr 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 9 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Westminster took a median of 91 days over the applications it decided in the last year.

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/06298/ADFULL Decided

    14 Wilton Place London SW1X 8RL

    Details of new sash windows and the acoustic enclosure pursuant to Condition 7 of planning permission dated 21st July 2026 (RN:26/02418/FULL)

    Submitted 15 Sep 2026

Who's behind it

Company information only, from the register and Companies House

Maddox and Associates Ltd Agent, registered in London

Active · incorporated 2007 · London

90 applications on PlanIndex · across 28 councils · 87% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

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Documents

Plans, drawings, consultee responses and the officer's report

63 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 14 Wilton Place London SW1X 8RL

    26/02419/LBC Submitted 14 Apr 2026 50 yards away

    90% historically approved · decision due ~9 Jun

    Excavation of a basement beneath the footprint including removal of the conservatory to create a new rear extension, with a new stair leading down to the courtyard terrace at lower-ground level. Installation of plant equipment. including Internal and external alterations to a residential property. (Linked with 26/02418/FULL)

    Awaiting decision Heritage and listed buildings Extension 1 doc

  • 24 Wilton Place London SW1X 8RL

    26/01827/TPO Submitted 20 Mar 2026 50 yards away

    100% historically approved · decision due ~18 May

    T1 - London Plane tree (Platanus), re-pollard. Remove the most recent regrowth back to the most recent pollard points | approx. 2.0m in length. Reason for works: Cyclical pruning/maintenance.

    Awaiting decision Trees 8 docs

  • 14 Wilton Place London SW1X 8RL

    26/06298/ADFULL Submitted 15 Sep 2026 50 yards away

    89% historically approved · decision due ~10 Nov

    Details of new sash windows and the acoustic enclosure pursuant to Condition 7 of planning permission dated 21st July 2026 (RN:26/02418/FULL)

    Decided Windows or glazing

  • 15 Wilton Place London SW1X 8RL

    26/05123/FULL Submitted 30 Jul 2026 50 yards away

    88% historically approved · decision due ~24 Sep

    Alterations to front garden paving and railings to repair and mitigate tree damage.

    Decided Full applications Trees

  • 15 Wilton Place London SW1X 8RL

    26/05124/LBC Submitted 30 Jul 2026 50 yards away

    90% historically approved · decision due ~24 Sep

    Alterations to the front garden paving and railings to repair and mitigate tree damage.

    Decided Heritage and listed buildings Trees

  • 14 Wilton Place London SW1X 8RL

    26/06551/ADLBC Submitted 23 Sep 2026 50 yards away

    89% historically approved · decision due ~18 Nov

    Details of new sash window details and acoustic enclosure including colour and material pursuant to condition 4 (i and ii) of listed building consent dated 21 July 2026 (RN: 26/02419/LBC).

    Decided Windows or glazing

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications