Planning application
70 Harley Street London W1G 7HF
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)
Timeline
Dates from the published record
-
14 Jan 2026
Received by Westminster
-
2 Feb 2026
Validated
Checked as complete and ready for consideration.
-
20 Jul 2026
Added to PlanIndex
-
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 66 days over the applications it decided in the last year.
Related applications
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)
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)
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
35 applications on PlanIndex
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
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 documentsWhat 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 94 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.
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70 Harley Street London W1G 7HF
87% 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)
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