Planning application
54 Chester Square London SW1W 9EA
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Relates to 25/08369/FULL
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Detailed drawings of new infill roof and boundary wall trellis pursuant to Condition 4 of planning permission dated 20th February 2026 (RN: 25/08369/FULL).
As published by the council, reference 26/01509/ADFULL
Application record
- Reference
- 26/01509/ADFULL
- Type
- Approval of Details (Full PP)
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 9 Mar 2026
- Validated
- 11 Mar 2026
- Decided
- 20 Mar 2026
- Ward
- Knightsbridge & Belgravia
- Decision by
- Delegated Decision
- Postcode
- SW1W 9EA
Site history
Applications at this address on the Westminster register
This site has had 6 applications since 2025: 3 approved, 0 refused.
-
26/01612/ADLBC Awaiting decision
54 Chester Square London SW1W 9EA
Detailed drawings of new infill roof, boundary wall / trellis pursuant to condition 4 of listed building consent dated 20th February 2026 (RN: 25/08370/LBC). Linked to 26/01509/ADFULL.
-
26/01216/FULL Awaiting decision
54 Chester Square London SW1W 9EA
Removal of existing front lightwell and roof level air-conditioning units, installation of two new air-conditioning units and acoustic enclosure at main roof level, and removal and replacement of external CCTV cameras.
-
26/01217/LBC Awaiting decision
54 Chester Square London SW1W 9EA
Removal of existing front lightwell and roof level air-conditioning units, installation of two new air-conditioning units and acoustic enclosure at main roof level, and removal and replacement of external CCTV cameras. Associated internal works using existing service routes. (Linked to RN: 26/01216/FULL).
-
25/08370/LBC Granted
54 Chester Square London SW1W 9EA
Replacement roof to existing rear link extension to extend existing roof terrace with associated alterations to existing roof terrace areas, infilling two extract grilles, window replacements and internal alterations & refurbishment.
-
25/08369/FULL Granted
54 Chester Square London SW1W 9EA
Replacement roof to existing rear link extension to extend existing roof terrace with associated alterations to existing roof terrace areas, infilling two extract grilles and replacement of windows.
Timeline
Dates from the published record
-
9 Mar 2026
Received by Westminster
-
11 Mar 2026
Validated
Checked as complete and ready for consideration.
-
20 Mar 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
25/08369/FULL Granted
54 Chester Square London SW1W 9EA
Replacement roof to existing rear link extension to extend existing roof terrace with associated alterations to existing roof terrace areas, infilling two extract grilles and replacement of windows.
1 later application on the register refers to this one:
-
26/01612/ADLBC Awaiting decision
54 Chester Square London SW1W 9EA
Detailed drawings of new infill roof, boundary wall / trellis pursuant to condition 4 of listed building consent dated 20th February 2026 (RN: 25/08370/LBC). Linked to 26/01509/ADFULL.
Who's behind it
Company information only, from the register and Companies House
Smith Jenkins Ltd Agent, registered in Milton Keynes
Active · incorporated 2012 · Milton Keynes
179 applications on PlanIndex · across 37 councils · 82% 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
14 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 documentsWhat this grant of permission means
Westminster granted permission on 20 March 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
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
-
47 Chester Square London SW1W 9EA
88% historically approved · decision due ~9 Apr
Details of signed Appendix A pursuant to Condition 9 of planning permission dated 10 September 2025 (RN24/05375/FULL)
Awaiting decision Full applications 4 docs -
60 Chester Square London SW1W 9EA
Details of CCTV fixtures showing their design, size and position, and relationship with existing architectural detailing and dormers pursuant to condition 4 parts 1 and 3 and, photo sample of roofing slate pursuant to part-discharge of condition 5 of planning permission dated 11th November 2025 (RN: 25/06259/FULL).
Refused Full applications Loft or dormer 15 docs -
47 Chester Square London SW1W 9EA
Details of contaminated land investigation pursuant to Condition 8 (phase 1-3) of planning permission dated 10th September 2025 (RN: 24/05375/FULL).
Granted Full applications 13 docs -
47 Chester Square London SW1W 9EA
88% historically approved · decision due ~1 Jul
Details of facing materials including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to discharge of condition 4 of planing permission dated 10th September 2025 (RN: 24/05476/LBC). Linked to 26/02877/ADLBC
Awaiting decision Full applications Windows or glazing 6 docs -
47 Chester Square London SW1W 9EA
89% historically approved · decision due ~1 Jul
Details of facing materials including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to discharge of condition 3 of listed building consent dated 10th September 2025 (RN: 24/05476/LBC). Linked to 26/02962/ADFULL
Awaiting decision Conditions Windows or glazing 7 docs -
54 Chester Square London SW1W 9EA
89% historically approved · decision due ~6 May
Detailed drawings of new infill roof, boundary wall / trellis pursuant to condition 4 of listed building consent dated 20th February 2026 (RN: 25/08370/LBC). Linked to 26/01509/ADFULL.
Awaiting decision Conditions Extension 11 docsSmall domestic
Other full applications
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)
-
26/05200/FULL Decided
1 The Court House 165 Seymour Place London W1H 4PU
Installation of waterproofing system to the existing lead flat roofs
-
26/07521/FULL Awaiting decision
Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ
Installation of one external condenser unit
-
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)
-
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)