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Planning application

11 Robert Adam Street London W1U 3HN

Awaiting decision Westminster 26/03100/FULL Full Planning Permission Application

Works: Windows or glazing

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

Proposal

Installation of new secondary glazing to the internal faces of existing single glazed historic windows , including new double glazed timber windows to replace existing non historic windows. (Linked with 26/03101/LBC)

As published by the council, reference 26/03100/FULL

Application record

Reference
26/03100/FULL
Type
Full Planning Permission Application
Status
Pending
Received
12 May 2026
Validated
12 May 2026
Ward
Marylebone
Postcode
W1U 3HN

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2026.

  • 26/03101/LBC Awaiting decision

    11 Robert Adam Street London W1U 3HN

    Installation of new secondary glazing to the internal faces of existing single glazed historic windows , including new double glazed timber windows to replace existing non historic windows. (Linked with 26/03100/FULL)

    Submitted 12 May 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 12 May 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 7 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

MDB Associates Agent, registered in York

Active · incorporated 2002 · York

23 applications on PlanIndex · across 5 councils · 100% 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

21 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 full applications in a median of 119 days. More in our guide to how long planning decisions take.

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

  • 11 Robert Adam Street London W1U 3HN

    26/03101/LBC Submitted 12 May 2026 50 yards away

    90% historically approved · decision due ~7 Jul

    Installation of new secondary glazing to the internal faces of existing single glazed historic windows , including new double glazed timber windows to replace existing non historic windows. (Linked with 26/03100/FULL)

    Awaiting decision Heritage and listed buildings Windows or glazing 1 doc

  • St Pauls Church Robert Adam Street London W1U 3HW

    05/01991/AD7 Submitted 16 Mar 2005 50 yards away

    Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building over the garage door, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

    Granted Advertising 4 docs

  • St Pauls Church Robert Adam Street London W1U 3HW

    04/07456/AD7 Submitted 20 Sep 2004 50 yards away

    Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building over the garage door, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

    Granted Advertising 4 docs

  • St Pauls Church Robert Adam Street London W1U 3HW

    03/09805/AD7 Submitted 22 Dec 2003 50 yards away

    Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building over the garage door, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

    Granted Advertising 4 docs

  • St Pauls Church Robert Adam Street London W1U 3HW

    03/03369/AD7 Submitted 30 Apr 2003 50 yards away

    Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building over the garage door, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

    Granted Advertising 4 docs

  • 33 Robert Adam Street London W1U 3HP

    26/04276/NMA Submitted 29 Jun 2026 50 yards away

    93% historically approved · decision due ~27 Aug

    Amendments to planning permission dated 20th February 2024 (RN:23/06458/FULL) for Removal of facades at Ground & First; New Entrance, with stone features, glazed facade, new entrance doors, and new planters; Replacement of windows; New louvred shutters to South-facing windows; Replacement MEP services and associated plant; New cycle storage in basement; Upgrade to internal offices; New roof covering & insulation and associated works. Namely, relocating the cycle storage one bay to the right within a new secure enclosure, refurbishing the existing lift motor room and relocating the power mains and GF fire curtain control panel into this space, proposing a small plant room for access and an increase in shower provision from one to three units, alongside associated WC.

    Awaiting decision Amendments Roofing Windows or glazing 13 docs
    Several homes

In Westminster

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    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
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    1 The Court House 165 Seymour Place London W1H 4PU

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    Received 3 Aug, published by the council 28 Aug 2026 Full applications
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    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 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
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications