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Planning application

141 Harley Street London W1G 6BQ

Awaiting decision Westminster 26/06290/LBC Heritage and listed buildings

Relates to 26/06340/FULL

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Internal alterations and openings at basement, ground and first floors as well as the insertion of a platform lift within 143 from basement to first floors, the partial infilling of the rear basement area and other minor adjustments to plan form. (Linked to 26/06340/FULL)

As published by the council, reference 26/06290/LBC

Application record

Reference
26/06290/LBC
Category
Heritage and listed buildings
Status
Pending
Received
14 Sep 2026
Validated
14 Sep 2026
Postcode
W1G 6BQ

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2026.

  • 26/06340/FULL Awaiting decision

    141 Harley Street London W1G 6BQ

    Variation of Condition 1 of planning permission dated 22 December 2016 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

    Submitted 16 Sep 2026 Full applications
  • 26/06341/FULL Decided

    141 Harley Street London W1G 6BQ

    Installation of new sesame lift into existing front entrance steps. (Linked with 26/06342/LBC)

    Submitted 16 Sep 2026 Full applications
  • 26/06342/LBC Decided

    141 Harley Street London W1G 6BQ

    Installation of new sesame lift into existing front entrance steps. (Linked with 26/06341/FULL)

    Submitted 16 Sep 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 14 Sep 2026

    Received by Westminster

  2. 23 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 9 November 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.

Cases linked to this one on the register

  • 26/06340/FULL Awaiting decision

    141 Harley Street London W1G 6BQ

    Variation of Condition 1 of planning permission dated 22 December 2016 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

    Submitted 16 Sep 2026 Full applications

1 later application on the register refers to this one:

  • 26/06340/FULL Awaiting decision

    141 Harley Street London W1G 6BQ

    Variation of Condition 1 of planning permission dated 22 December 2016 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

    Submitted 16 Sep 2026 Full applications

What 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

  • 141 Harley Street London W1G 6BQ

    26/06340/FULL Submitted 16 Sep 2026 50 yards away

    88% historically approved · decision due ~11 Nov

    Variation of Condition 1 of planning permission dated 22 December 2016 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

    Awaiting decision Full applications Demolition

  • 141 Harley Street London W1G 6BQ

    26/06341/FULL Submitted 16 Sep 2026 50 yards away

    88% historically approved · decision due ~11 Nov

    Installation of new sesame lift into existing front entrance steps. (Linked with 26/06342/LBC)

    Decided Full applications

  • 141 Harley Street London W1G 6BQ

    26/06342/LBC Submitted 16 Sep 2026 50 yards away

    90% historically approved · decision due ~11 Nov

    Installation of new sesame lift into existing front entrance steps. (Linked with 26/06341/FULL)

    Decided Heritage and listed buildings

  • 33 Devonshire Mews West London W1G 6QF

    26/06865/CLEUD Submitted 8 Oct 2026 50 yards away

    84% historically approved · decision due ~3 Dec

    Confirmation of lawful commencement of works in accordance with planning permission (RN 23/03331/FULL)

    Awaiting decision Lawful development

  • 33 Devonshire Mews West London W1G 6QF

    26/03461/ADFULL Submitted 27 May 2026 50 yards away

    88% historically approved · decision due ~29 Jul

    Details of sample of clear glass / sample of obscure glass for privacy screen pursuant to conditions 9 and 10 of planning permission dated 08 August 2023 (RN: 23/03331/FULL)

    Awaiting decision Full applications 5 docs

  • 33 Devonshire Mews West London W1G 6QF

    26/03460/ADFULL Submitted 27 May 2026 50 yards away

    88% historically approved · decision due ~22 Jul

    Details of waste and recycling storage / sample of natural slate for roof pursuant to conditions 3 and 8 of planning permission dated 08 August 2023 (RN: 23/03331/FULL)

    Awaiting decision Full applications 5 docs

In Westminster

  • 26/06288/LBC Decided

    Barness Court 6 - 8 Westbourne Terrace London W2 3UW

    Installation of a gas pipework to south elevation and wall. (Linked with 26/06287/FULL)

    Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
  • 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)

    Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 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)

    Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 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)

    Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 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)

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings