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Planning application

26 Upper Montagu Street London W1H 1RP

Awaiting decision Westminster 25/08746/FULL Full Planning Permission Application

Works: Extension

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

Proposal

Erection of a two storey rear extension and internal reconfiguration of HMO.

As published by the council, reference 25/08746/FULL

Application record

Reference
25/08746/FULL
Type
Full Planning Permission Application
Status
Pending
Received
1 Dec 2025
Validated
1 Dec 2025
Ward
Marylebone
Postcode
W1H 1RP

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2025.

  • 26/06957/FULL Awaiting decision

    26 Upper Montagu Street London W1H 1RP

    Installation of condenser unit at roof level.

    Submitted 12 Oct 2026 Full applications
  • 26/03214/FULL Awaiting decision

    26 Upper Montagu Street London W1H 1RP

    Erection of a one and a half storey rear extension tp enlarge HMO, installation of replacement windows and installation of balcony railings.

    Submitted 15 May 2026 Full applications

Timeline

Dates from the published record

  1. 1 Dec 2025

    Received by Westminster

  2. 20 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 26 January 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

Logic Planning Agent, a planning consultancy registered in London

Active · incorporated 2014 · London

39 applications on PlanIndex · across 17 councils · 70% 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 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

  • 26 Upper Montagu Street London W1H 1RP

    26/03214/FULL Submitted 15 May 2026 50 yards away

    88% historically approved · decision due ~10 Jul

    Erection of a one and a half storey rear extension tp enlarge HMO, installation of replacement windows and installation of balcony railings.

    Awaiting decision Full applications Extension Windows or glazing 12 docs

  • 25 Upper Montagu Street London W1H 1SA

    25/07358/FULL Submitted 10 Oct 2025 50 yards away

    88% historically approved · decision due ~6 Jan

    Replacement of existing external staircase within front lightwell. (Linked to 25/08299/LBC)

    Awaiting decision Full applications 11 docs

  • 25 Upper Montagu Street London W1H 1SA

    25/08299/LBC Submitted 11 Nov 2025 50 yards away

    90% historically approved · decision due ~6 Jan

    Replacement of existing external staircase within front lightwell. (Linked to 25/07358/FULL)

    Awaiting decision Heritage and listed buildings 7 docs

  • 26 Upper Montagu Street London W1H 1RP

    26/06957/FULL Submitted 12 Oct 2026 50 yards away

    88% historically approved · decision due ~10 Dec

    Installation of condenser unit at roof level.

    Awaiting decision Full applications

  • 40 Upper Montagu Street London W1H 1RP

    09/07665/LBC Submitted 23 Sep 2009 50 yards away

    Alterations to front elevation and internal works at ground floor level.

    Granted Heritage and listed buildings 2 docs

  • 21 Upper Montagu Street London W1H 2PQ

    25/08056/LBC Submitted 5 Nov 2025 50 yards away

    Replacement of existing non-original single-glazed timber sash windows with new slimline double-glazed timber sash windows to match the original in appearance, detailing and materials. (Linked to 25/08055/FULL)

    Granted Heritage and listed buildings Windows or glazing 18 docs

In Westminster

  • 26/07528/FULL Awaiting decision

    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
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    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