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Planning application

50 Grosvenor Street London

Awaiting decision Westminster 26/03477/LBC Listed Building Consent Application

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

Proposal

Minor internal works at ground and first floor levels to refurbish and fit-out office accommodation (revised submission of application ref. 26/00764/LBC).

As published by the council, reference 26/03477/LBC

Application record

Reference
26/03477/LBC
Type
Listed Building Consent Application
Status
Pending
Received
27 May 2026
Validated
27 May 2026
Ward
West End

Site history

Applications at this address on the Westminster register

This site has had 8 applications since 2025: 1 approved, 2 refused.

  • 26/03813/LBC Decided

    50 Grosvenor Street London

    Installation of three condenser units within the rear courtyard.

    Submitted 10 Jun 2026 Heritage and listed buildings
  • 26/03812/FULL Decided

    50 Grosvenor Street London

    Installation of three condenser units within the rear courtyard.

    Decided 31 Jul 2026 Full applications
  • 26/01504/LBC Awaiting decision

    50 Grosvenor Street London

    Installation of three condenser units within the rear courtyard. (Linked with 26/01503/FULL)

    Submitted 9 Mar 2026 Heritage and listed buildings
  • 26/01503/FULL Awaiting decision

    50 Grosvenor Street London

    Installation of three condenser units within the rear courtyard. (Linked with 26/01504/LBC)

    Submitted 9 Mar 2026 Full applications
  • 26/00764/LBC Refused

    50 Grosvenor Street London

    Internal works at ground and first floor levels to refurbish and fit-out office accommodation.

    Decided 28 Apr 2026 Heritage and listed buildings
  • 26/00754/LBC Refused

    50 Grosvenor Street London

    Creation of internal structural opening at ground floor level to provide access between 50 and 51 Grosvenor Street.

    Decided 1 Apr 2026 Heritage and listed buildings
  • 25/08357/LBC Granted

    50 Grosvenor Street London

    Internal alterations at lower ground, ground, first, second, third and fourth floors.

    Decided 20 Feb 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 27 May 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 22 July 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.

Who's behind it

Company information only, from the register and Companies House

Firstplan Ltd Agent, registered in London

Active · incorporated 2003 · London

845 applications on PlanIndex · across 119 councils · 94% 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

33 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 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

  • 49 Grosvenor Street London W1K 3HP

    26/06345/LBC Submitted 16 Sep 2026 50 yards away

    90% historically approved · decision due ~11 Nov

    Internal alterations and refurbishment.

    Decided Heritage and listed buildings

  • 50 Grosvenor Street London

    26/00764/LBC Submitted 9 Feb 2026 50 yards away

    Internal works at ground and first floor levels to refurbish and fit-out office accommodation.

    Refused Heritage and listed buildings 47 docs

  • 50 Grosvenor Street London

    25/08357/LBC Submitted 14 Nov 2025 50 yards away

    Internal alterations at lower ground, ground, first, second, third and fourth floors.

    Granted Heritage and listed buildings 73 docs

  • 50 Grosvenor Street London

    26/00754/LBC Submitted 9 Feb 2026 50 yards away

    Creation of internal structural opening at ground floor level to provide access between 50 and 51 Grosvenor Street.

    Refused Heritage and listed buildings 18 docs

  • Investcorp House 48 Grosvenor Street London W1K 3HW

    26/01687/FULL Submitted 16 Mar 2026 50 yards away

    88% historically approved · decision due ~11 May

    Infill of vehicle garage access on Mount Row, infill of lightwell and skylights at ground floor level, renewing glass facade of link building, new plant on roof.

    Awaiting decision Full applications Extension 50 docs

  • Flat 6 16 Mount Row London W1K 3SE

    26/06031/FULL Submitted 3 Sep 2026 50 yards away

    88% historically approved · decision due ~2 Dec

    Installation of a single external air confitioning condenser unit at roof level.

    Awaiting decision Full applications

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