Planning application
14 Wilton Place London SW1X 8RL
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 26/02418/FULL)
As published by the council, reference 26/02419/LBC
Application record
- Reference
- 26/02419/LBC
- Type
- Listed Building Consent 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).
-
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)
-
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.
-
26/02418/FULL 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 26/02419/LBC)
Timeline
Dates from the published record
-
14 Apr 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
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.
Related applications
Cases linked to this one on the register
1 later application on the register refers to this one:
-
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).
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.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
1 document 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 documentsWhat 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 heritage and listed building applications in a median of 119 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
14 Wilton Place London SW1X 8RL
88% 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 26/02419/LBC)
Awaiting decision Full applications Extension 63 docs -
24 Wilton Place London SW1X 8RL
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
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
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
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
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
Other heritage and listed building applications
In Westminster
-
26/07529/LBC Awaiting decision
69 Eaton Place London SW1X 8DF
Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)
-
26/07509/LBC 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 26/07508/FULL)
-
26/07473/LBC Awaiting decision
Flat 3 82 New Cavendish Street London W1G 9TA
Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)
-
26/07471/LBC Awaiting decision
12 Queen Anne's Gate London SW1H 9AA
Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)
-
26/07461/LBC Awaiting decision
1 Savile Row London W1S 3JR
Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.