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.
Towns and villages in SW1X
Councils covering SW1X
Recent applications in SW1X
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)
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
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
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)
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))
Installation of full length riser to rear of building (Park Close) and pipework at roof level in connection with gas supply to property. (Retrospective)
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.
Waterproofing works to the basement, comprising the removal of existing plaster and replacement with a waterproofing plaster.
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)
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.
Alteration of timber windows to include slimline double glazing. (Linked with 26/05663/LBC)
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)
Damp proofing works to the lower ground floor
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.
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).
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.
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)
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)
Installation of an internal security system.
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)
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.
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.
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.
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)
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.
1 x newly planted Prunus (T100168): removal and replacement
Detailed Operational Management Plan; pursuant to condition 25 of planning permission dated 3rd April 2017 (RN 16/08369/FULL)
Replacement door at lower ground floor level.
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)
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)
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)
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)
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
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)
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)
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)
Remediation works to the roof and internal walls and joists to address dry rot.
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)
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.
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).
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
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)
1 x Prunus subhirtella (T323): removal
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.
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.
Alterations to roof to provide a sunken plant room on the fifth floor attic space.
Alterations to roof to provide a sunken plant room on the fifth floor attic space.
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.
Display of non-illuminated hanging sign measuring 0.50m x 0.30m.
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).