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Planning application

54 Chester Square London SW1W 9EA

Granted Westminster 25/08369/FULL Full Planning Permission Application

Works: Extension Roofing Windows or glazing

Relates to 25/08370/LBC

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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.

As published by the council, reference 25/08369/FULL

Application record

Reference
25/08369/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
17 Nov 2025
Validated
17 Nov 2025
Decided
20 Feb 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.

  • 26/01509/ADFULL Granted

    54 Chester Square London SW1W 9EA

    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).

    Decided 20 Mar 2026 Full applications
  • 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.

    Submitted 9 Mar 2026 Conditions
  • 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.

    Submitted 26 Feb 2026 Full applications
  • 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).

    Submitted 26 Feb 2026 Heritage and listed buildings
  • 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.

    Decided 20 Feb 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 17 Nov 2025

    Received by Westminster

  2. 20 Feb 2026

    Decision issued: Application Permitted

  3. 20 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 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.

    Decided 20 Feb 2026 Heritage and listed buildings

2 later applications on the register refer to this one:

  • 26/01509/ADFULL Granted

    54 Chester Square London SW1W 9EA

    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).

    Decided 20 Mar 2026 Full applications
  • 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.

    Decided 20 Feb 2026 Heritage and listed buildings

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 record

Documents

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

41 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 this grant of permission means

Westminster granted permission on 20 February 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

  • 54 Chester Square London SW1W 9EA

    25/08370/LBC Submitted 17 Nov 2025 50 yards away

    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.

    Granted Heritage and listed buildings Extension Roofing +1 36 docs

  • 54 Chester Square London SW1W 9EA

    26/01216/FULL Submitted 26 Feb 2026 50 yards away

    88% historically approved · decision due ~28 May

    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.

    Awaiting decision Full applications 41 docs

  • 54 Chester Square London SW1W 9EA

    26/01217/LBC Submitted 26 Feb 2026 50 yards away

    90% historically approved · decision due ~28 May

    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).

    Awaiting decision Heritage and listed buildings 36 docs

  • 47 Chester Square London SW1W 9EA

    26/05757/LBC Submitted 21 Aug 2026 50 yards away

    90% historically approved · decision due ~16 Oct

    Investigation of dampness and damp-proofing / waterproofing works to the lower ground floor.

    Decided Heritage and listed buildings 11 docs

  • 47 Chester Square London SW1W 9EA

    26/04643/ADLBC Submitted 10 Jul 2026 50 yards away

    89% historically approved · decision due ~4 Sep

    Details of the front entrance to be simplified to reflect a more traditional modest mews style and the existing entrance pursuant to condition 8 of listed building consent dated 11 June 2026 (RN: 25/08226/LBC).

    Decided

  • 47 Chester Square London SW1W 9EA

    26/05730/ADFULL Submitted 21 Aug 2026 50 yards away

    89% historically approved · decision due ~16 Oct

    Detailed drawings and a bio-diversity management plan in relation to the green roof, pursuant to condition 13 of planning permission dated 11th June 2026 (25/08223/FULL)

    Decided

In Westminster

  • 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
  • 26/07508/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
  • 26/07470/FULL Awaiting decision

    12 Queen Anne's Gate London SW1H 9AA

    Excavation of single-storey basement. (Linked with 26/07471/LBC).

    Received 3 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07466/FULL Awaiting decision

    65 Albion Gate Albion Street W2 2LA

    Replacement of first-floor front elevation windows and balcony door with double-glazed steel-framed units.

    Received 3 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07460/FULL Awaiting decision

    1 Hanover Square London W1S 1HA

    Installation of new public art sculptures and seating; hard and soft landscaping; installation of an area of raised terrace decking on St George Street measuring 43m x 2.6m for the placing of tables, chairs and banquette benches in connection with restaurant use; and associated external alterations and enabling works.

    Received 3 Nov, published by the council 5 Nov 2026 Full applications