Skip to content

Planning applications in SW1X

We hold 636 planning applications for the SW1X postcode area, 271 of them submitted in the past year. 96% of decided applications here were approved. A decision typically takes 56 days. The area is covered by Westminster, Kensington.

636
applications held
271
in the past year
96%
approved
56 days
median decision

Towns and villages in SW1X

Councils covering SW1X

Westminster (493)Kensington (143)

Recent applications in SW1X

Pending
17 Sept 202626/06364/LBC · Received: Thu 17 Sep 2026 · Validated: Thu 17 Sep 2026
11 - 12 William Street London SW1X 9HLWestminster

Refurbishment of existing shopfront, installation of retractable awnings, new fascia signage, illuminated menu box, replacement entrance steps and associated external alterations. (Linked to 26/06355/FULL and 26/06356/ADV)

Pending
15 Sept 202626/06298/ADFULL · Received: Tue 15 Sep 2026 · Validated: Tue 15 Sep 2026
14 Wilton Place London SW1X 8RLWestminster

Details of new sash windows,elevations and section 1:10 demonstrating traditional joinery profiles, include integral glazing bars and details of the acoustic enclosure including colour and material pursuant to condition 7 of planning permission dated 21st July 2026 (RN:26/02418/FULL

Pending
15 Sept 202626/06298/ADFULL · Received: Tue 15 Sep 2026 · Validated: Tue 15 Sep 2026
14 Wilton Place London SW1X 8RLWestminster

Details of new sash windows,elevations and section 1:10 demonstrating traditional joinery profiles, include integral glazing bars and details of the acoustic enclosure including colour and material pursuant to condition 7 of planning permission dated 21st July 2026 (RN:26/02418/FULL

Pending
11 Sept 202626/06243/ADFULL · Received: Fri 11 Sep 2026 · Validated: Fri 11 Sep 2026
11 - 12 William Street London SW1X 9HLWestminster

Details of the ventilation system to get rid of cooking smells, including details of how it will be built and how it will look pursuant to condition 8 of planning permission dated 1st May 2024 (RN 24/01192/FULL)

Pending
11 Sept 202626/06234/FULL · Received: Fri 11 Sep 2026 · Validated: Fri 11 Sep 2026
40 Grosvenor Place London SW1X 7HJWestminster

Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

Pending
7 Sept 202626/06088/FULL
The Penthouse Wellington Court 116 Knightsbridge London SW1X 7PLWestminster

Installation of full length riser to rear of building (Park Close) and pipework at roof level in connection with gas supply to property. (Retrospective)

Pending
28 Aug 202626/05911/LBC · Received: Fri 28 Aug 2026 · Validated: Fri 28 Aug 2026
74 Eaton Place London SW1X 8AUWestminster

Internal waterproofing works to damp-affected basement walls including removal of existing damaged plaster finishes and replacement with a specialist waterproof render and plaster system.

Pending
28 Aug 202626/05911/LBC
74 Eaton Place London SW1X 8AUWestminster

Waterproofing works to the basement, comprising the removal of existing plaster and replacement with a waterproofing plaster.

Pending
25 Aug 202626/05844/ADFULL
3 Montrose Place London SW1X 7DUWestminster

Details of a sample panel of brickwork, built on site, which shows the colour, texture, face bond and pointing pursuant to condition 4 of planning permission dated 2nd July 2024 (RN:24/01347/FULL)

Pending
Small
Amendment
19 Aug 202626/05674/NMA
52 Eaton Place London SW1X 8ALWestminster

Amendments to planning permission dated 25 September 2025 (25/05108/FULL) for: Alterations to rear extension at first floor level including creation of rear roof terrace at second floor level; replacement of first and second floor level front windows with double glazed timber sash windows; replacement of front door; reinstatement of period windows and doors namely, to allow replacement of second floor rear full height sash window with set of french doors.

Pending
Small
Full
19 Aug 202626/05662/FULL
Flat 3 96 Eaton Place London SW1X 8LWWestminster

Alteration of timber windows to include slimline double glazing. (Linked with 26/05663/LBC)

Pending
Small
Heritage
19 Aug 202626/05663/LBC
Flat 3 96 Eaton Place London SW1X 8LWWestminster

Alteration of timber windows to include slimline double glazing, alterations to existing passenger lift extending it to third floor mezzanine, and internal refurbishment throughout. (Linked with26/05662/FULL)

Pending
Small
Heritage
18 Aug 202626/05633/LBC
6 Wilton Place London SW1X 8RHWestminster

Damp proofing works to the lower ground floor

Pending
Small
Heritage
17 Aug 202626/05575/LBC
44 Wilton Crescent London SW1X 8RXWestminster

Replacement of slate roof coverings and associated leadwork, replacement of rooflights, removal and reinstatement of mansard slate hanging, and associated repairs to roof structures and concealed fabric.

Permitted
Small
Conditions
13 Aug 202626/05512/ADLBC
18 Belgrave Mews West London SW1X 8PXWestminster

Details of before and after photos of trial panel/s of the proposed masonry cleaning method/s pursuant to condition 3 of listed building consent dated 05 June 2026 (RN: 26/01147/LBC).

Pending
Small
Full Planning Permission Application
12 Aug 202626/05499/FULL
43 Eaton Place London SW1X 8BXWestminster

Variation of condition 9 and 11 of listed building dated 26th February 2026 (RN:25/06843/LBC) for the Replacement of the existing fourth floor (mansard) level single glazed windows, installation of a new security camera atop the mansard and minor amendments to internal alterations previously approved under RN: 24/08517/LBC, including retention of structural works, new areas of suspended ceiling, amendments to lighting and electrical layouts, replacement and/or retention of pre-existing wall linings/boxing/bulkheads, alterations to openings and new areas of floor coverings (part retrospective). Namely, an extension to the completion date for condition 9 and 11 condition until 31 November 2026.

Pending
Small
Approval of Details (ADLBC)
12 Aug 202626/05501/ADLBC
43 Eaton Place London SW1X 8BXWestminster

Details (elevations and sections at 1:5) of the skirting proposed at the landings of the back of house staircase pursuant to condition 3 of listed building dated 26th February 2026 (RN:25/06843/LBC)

Pending
Small
Full
12 Aug 202626/05492/FULL
Flat 3 Carysfort House West Halkin Street London SW1X 8JSWestminster

Replacement of single glazed windows at the ground floor flat front elevation, with slimline double glazed windows in matching style. (Linked with 26/05493/LBC)

Pending
Small
Heritage
12 Aug 202626/05490/LBC
37 Belgrave Square London SW1X 8NSWestminster

Installation of an internal security system.

Pending
Small
Heritage
12 Aug 202626/05493/LBC
Flat 3 Carysfort House West Halkin Street London SW1X 8JSWestminster

Replacement of single glazed windows at the ground floor flat front elevation, with slimline double glazed windows in matching style. (Linked with 26/05493/LBC)

Pending
Small
Heritage
12 Aug 202626/05499/LBC
43 Eaton Place London SW1X 8BXWestminster

Variation of condition 9 and 11 of listed building dated 26th February 2026 (RN: 25/06843/LBC) for 'Replacement of the existing fourth floor (mansard) level single glazed windows, installation of a new security camera atop the mansard and minor amendments to internal alterations previously approved under RN: 24/08517/LBC, including retention of structural works, new areas of suspended ceiling, amendments to lighting and electrical layouts, replacement and/or retention of pre-existing wall linings/boxing/bulkheads, alterations to openings and new areas of floor coverings (part retrospective)'. Namely, to allow an extension to the completion date for conditions 9 and 11 condition until 31 November 2026.

Pending
Small
Advertising
11 Aug 202626/05455/ADV
66 Knightsbridge London SW1X 7LAWestminster

Display of internally illuminated two cross-street decorations on Knightsbridge, suspended from catenary wires spanning the carriageway between Harvey Nichols and the Mandarin Oriental measuring 20m X 3.2m for a temporary period.

Pending
Small
Outline
7 Aug 202626/05396/CLOPUD
11 Knightsbridge London SW1X 7LYWestminster

Certificate of lawfulness for the proposed erection of a temporary masonry enclosure and an in-situ crane for means of access to Hyde Park Corner substation.

Pending
Small
Approval of Details (ADLBC)
6 Aug 202626/05327/ADLBC
17 Belgrave Square London SW1X 8PGWestminster

Details of windows, doors, garage doors, roof lantern and new lighting and flooring in the principal rooms pursuant to condition 6 of listed building consent dated 18 August 2025 (RN: 25/03417/LBC)

Pending
5 Aug 202626/05848/MOD106
33 Grosvenor Place London SW1X 7HYWestminster

Deed of Variation to the S106 agreement (as amended) attached to planning permission dated 3 April 2017 (RN:16/08369/FULL) relating to parking spaces to be provided.

Dead dangerous replacement required
Small
Trees
5 Aug 202626/05320/TDD
Open Space Belgrave Square London SW1X 8PSWestminster

1 x newly planted Prunus (T100168): removal and replacement

Pending
Small
Conditions
3 Aug 202626/05233/ADFULL
33 Grosvenor Place London SW1X 7HYWestminster

Detailed Operational Management Plan; pursuant to condition 25 of planning permission dated 3rd April 2017 (RN 16/08369/FULL)

Pending
Small
Listed Building Consent Application
31 Jul 202626/05198/LBC
Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BPWestminster

Replacement door at lower ground floor level.

Pending
Small
Full Planning Permission Application
30 Jul 202626/05134/FULL
Apartment 2 79 Eaton Place London SW1X 8DRWestminster

Full refurbishment including installation of new windows and external doors, internal wall insulation, new roof and openings to rear closet wing, internal alterations to include new stair and rearrangement of rooms and a new ASHP on roof of closet wing within acoustic enclosure. (Linked to 26/05135/LBC)

Pending
Small
Full Planning Permission Application
30 Jul 202626/05123/FULL
15 Wilton Place London SW1X 8RLWestminster

Alterations to the front garden paving and railings to repair and mitigate damage from a tree which benefits from a TPO within the neighbours property at 14 Wilton Place. (Linked with 26/05124/LBC)

Pending
Small
Listed Building Consent Application
30 Jul 202626/05135/LBC
Apartment 2 79 Eaton Place London SW1X 8DRWestminster

Full refurbishment including installation of new windows and external doors, internal wall insulation, new roof and openings to rear closet wing, internal alterations to include new stair and rearrangement of rooms and a new ASHP on roof of closet wing within acoustic enclosure. (Linked to 26/05134/FULL)

Pending
Small
Listed Building Consent Application
30 Jul 202626/05124/LBC
15 Wilton Place London SW1X 8RLWestminster

Alterations to the front garden paving and railings to repair and mitigate damage from a tree which benefits from a TPO within the neighbours property at 14 Wilton Place. (Linked with 26/05123/FULL)

Pending
Small
Listed Building Consent Application
28 Jul 202626/05045/LBC
11A Belgrave Square London SW1X 8PHWestminster

Alteration of the existing roof and layout alterations to the loft level to create a concealed terrace area and additional plant space along with associated internal alterations

Pending
Small
Full Planning Permission Application
28 Jul 202626/05044/FULL
11A Belgrave Square London SW1X 8PHWestminster

Alteration of the existing roof and layout alterations to the loft level to create a concealed terrace area and additional plant space along with associated internal alterations. (Linked with 26/05045/LBC)

Pending
Small
Discharge of Conditions
23 Jul 2026CON/26/03980
Basement/ground Floor (rear), 67 Cadogan Square, London, SW1X 0DYKensington

Details required by condition 4 B (Submission of details) of listed building 26/01168 (Retrospective application for the installation of an air conditioning condenser to the rear lightwell, alterations to lightwell fenestration, and internal alterations to the ground and lower ground floors, including new fireplaces, doors, partitions, and joinery)

Pending
Small
Listed Building Consent Application
21 Jul 202626/04885/LBC
17 Chapel Street London SW1X 7BYWestminster

Erection of an additional storey at main roof level and a rear extension at lower ground floor level with terrace over and associated internal alterations (Linked with 26/04162/NMA)

Refused
Small
20 Jul 202626/04818/CLLB
21 Eaton Place London SW1X 8BPWestminster

Remediation works to the roof and internal walls and joists to address dry rot.

Pending
Small
Approval of Details (ADLBC)
20 Jul 202626/04850/ADLBC
17 Belgrave Square London SW1X 8PGWestminster

Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)

Pending
Small
Full
20 Jul 202626/04809/FULL
23 Eaton Mews North London SW1X 8ARWestminster

Erection of mansard roof extension; fenestration alterations to both elevations including Juliet balconies to first floor front elevation; new balustrade and fixed rooflight to rear roof terrace and canopy above front entrance.

Pending
Small
Approval of Details (Full PP)
16 Jul 202626/04761/ADFULL
17 Belgrave Square London SW1X 8PGWestminster

Detailed drawings of windows, doors, garage doors, which should appear as side hung, not up and over and roof Lantern pursuant to condition 6 of planning permission dated 13th December 2019 (RN:18/01324).

Pending
Small
Applic. for wks to trees subject to TPO
14 Jul 202626/04708/TPO
Open Space Belgrave Square London SW1X 8PSWestminster

T1202 - Laurocerasus lusitanica (Portugal Laurel): Fell ground level - dead stem closest too footpath which is dead. T2700 - Laurocerasus officinalis (Cherry Laurel): Lift low canopy, specified extent - to height above car parking signage as its visibility from this specimens growth is being blocked

Pending
Small
Approval of Details (Full PP)
14 Jul 202626/04710/ADFULL
17 Belgrave Square London SW1X 8PGWestminster

Details of secure cycle storage and details of how waste and recycling is going to be stored on the site pursuant to condition 16 and 19 of planning permission dated 13th December 2019 (RN:18/01324/FULL)

Pending
Small
Trees Dead, Dangerous
7 Jul 202626/04533/TDD
Open Space Centre Of Wilton Crescent London SW1X 8RNWestminster

1 x Prunus subhirtella (T323): removal

Permitted
Small
Trees
6 Jul 202626/04454/TPO
49 Belgrave Square London SW1X 8QZWestminster

1 x London Plane (front): Prune lateral branches to give 3-4 m clearance from the building. Crown clean by removing dead or heavily diseased branches. Crown lift over the highway to allow 5 m clearance above ground level.

Permitted
Small
Applic. for wks to trees subject to TPO
6 Jul 202626/04460/TPO
Open Space Belgrave Square London SW1X 8PSWestminster

1 x Robinia pseudoacacia (T4514): Reduce leaning sub dominant stem between 1-2 m back to established points where attainable. 1 x Aesculus x carnea (T4578): Reduce to approximately 4 m above raised bed level and below main stem failure. Reducing all remaining growth below this by 3 m on branches to south and west (current length approximately 6 m). Damaged limb to east to be left un-pruned. 1 x Ulmus glabra (T7467): Lift low canopy to 4 m over car parking.

Permitted
Small
Heritage
6 Jul 202626/04465/LBC
3 West Halkin Street London SW1X 8JJWestminster

Alterations to roof to provide a sunken plant room on the fifth floor attic space.

Permitted
Small
Full
6 Jul 202626/04464/FULL
3 West Halkin Street London SW1X 8JJWestminster

Alterations to roof to provide a sunken plant room on the fifth floor attic space.

Pending
Small
Full
3 Jul 202626/04409/FULL
17 William Mews London SW1X 9HFWestminster

Variation of Condition 1 of planning permission dated 12 June 2025 (RN: 24/07507/FULL) for the erection of a roof extension and alterations to existing front elevation and fenestration; excavation of a new basement below part existing dwellinghouse; Namely, amendments to the ground floor windows.

Not required
Small
Advertising
2 Jul 202626/04393/ADV
14 Kinnerton Place South London SW1X 8EHWestminster

Display of non-illuminated hanging sign measuring 0.50m x 0.30m.

Pending
Small
Approval of Details (ADLBC)
2 Jul 202626/04375/ADLBC
18 Belgrave Mews West London SW1X 8PXWestminster

Details of a revised front elevation of 18 Belgrave Square showing the locations for the scaffold fixings pursuant to condition 5 Listed Building consent dated 5th June 2026 (RN:26/01147).