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Planning application

70 Harley Street London W1G 7HF

Awaiting decision Westminster 26/00203/LBC Listed Building Consent Application

Works: Windows or glazing

Relates to 26/00202/FULL

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

Proposal

Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; replacement of fire doors; layout alterations; and associated works. (Linked to 26/00202/FULL)

As published by the council, reference 26/00203/LBC

Application record

Reference
26/00203/LBC
Type
Listed Building Consent Application
Status
Pending
Received
14 Jan 2026
Validated
2 Feb 2026
Ward
Marylebone
Postcode
W1G 7HF

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2026.

  • 26/00202/FULL Awaiting decision

    70 Harley Street London W1G 7HF

    Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; layout alterations; and associated works. (Linked with 26/00203/LBC)

    Submitted 14 Jan 2026 Full applications

Timeline

Dates from the published record

  1. 14 Jan 2026

    Received by Westminster

  2. 2 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 20 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 30 March 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

  • 26/00202/FULL Awaiting decision

    70 Harley Street London W1G 7HF

    Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; layout alterations; and associated works. (Linked with 26/00203/LBC)

    Submitted 14 Jan 2026 Full applications

1 later application on the register refers to this one:

  • 26/00202/FULL Awaiting decision

    70 Harley Street London W1G 7HF

    Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; layout alterations; and associated works. (Linked with 26/00203/LBC)

    Submitted 14 Jan 2026 Full applications

Who's behind it

Company information only, from the register and Companies House

Howard de Walden Estates Limited Agent, a developer registered in London

Active · incorporated 1963 · London

37 applications on PlanIndex · 91% 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

18 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

  • 70 Harley Street London W1G 7HF

    26/00202/FULL Submitted 14 Jan 2026 50 yards away

    88% historically approved · decision due ~30 Mar

    Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; layout alterations; and associated works. (Linked with 26/00203/LBC)

    Awaiting decision Full applications Windows or glazing 21 docs

  • 72 Harley Street London W1G 7HG

    26/00216/LBC Submitted 15 Jan 2026 50 yards away

    Replacement of fire doors at lower ground, ground and first floors.

    Granted Heritage and listed buildings 9 docs

  • 72 Harley Street London W1G 7HG

    06/09775/ADLBC Submitted 6 Dec 2006 50 yards away

    Detailed drawings showing screening to the air-conditioning plant pursuant to Condition 2 of listed building consent dated 30 November 2006 (RN: 06/07893).

    Granted Conditions 5 docs

  • 72 Harley Street London W1G 7HG

    06/09774/ADFULL Submitted 6 Dec 2006 50 yards away

    Detailed drawings showing screening to the air-conditioning plant pursuant to Condition 3 of planning permission dated 30 November 2006 (RN: 06/07892).

    Granted Full applications 4 docs

  • 66 Harley Street London W1G 7HD

    25/09353/ADV Submitted 24 Dec 2025 50 yards away

    Display of two non-illuminated plaques measuring 0.3m x 0.4m.

    Decided Advertising 8 docs

  • 66 Harley Street London W1G 7HD

    26/03067/LBC Submitted 11 May 2026 50 yards away

    90% historically approved · decision due ~16 Jul

    Installation of two non-illuminated plaques, measuring 30cm x 20cm.

    Awaiting decision Heritage and listed buildings 8 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