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Planning application

21 Upper Montagu Street London W1H 2PQ

Awaiting decision Westminster 25/08056/LBC Listed Building Consent Application

Works: Windows or glazing

Relates to 25/08055/FULL

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

Proposal

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)

As published by the council, reference 25/08056/LBC

Application record

Reference
25/08056/LBC
Type
Listed Building Consent Application
Status
Pending
Received
5 Nov 2025
Validated
5 Nov 2025
Ward
Marylebone
Postcode
W1H 2PQ

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025.

  • 25/08055/FULL Awaiting decision

    21 Upper Montagu Street London W1H 2PQ

    Replacement of single-glazed timber sash windows with slimline double-glazed timber sash windows to match the original in appearance, detailing and materials. (Linked to 25/08056/LBC)

    Submitted 5 Nov 2025 Full applications
  • 25/06220/FULL Withdrawn

    21 Upper Montagu Street London W1H 2PQ

    Careful dismantling and rebuilding of bowed flank elevation in matching/reused brickwork and replacement of existing timber joists to third floor. (Linked with 25/06221/LBC)

    Decided 17 Oct 2025 Full applications
  • 25/06221/LBC Withdrawn

    21 Upper Montagu Street London W1H 2PQ

    Careful dismantling and rebuilding of bowed flank elevation in matching/reused brickwork and replacement of existing timber joists to third floor. (Linked with 25/06220/FULL)

    Decided 17 Oct 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 5 Nov 2025

    Received by Westminster

  2. 20 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 31 December 2025, 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.

Cases linked to this one on the register

  • 25/08055/FULL Awaiting decision

    21 Upper Montagu Street London W1H 2PQ

    Replacement of single-glazed timber sash windows with slimline double-glazed timber sash windows to match the original in appearance, detailing and materials. (Linked to 25/08056/LBC)

    Submitted 5 Nov 2025 Full applications

Who's behind it

Company information only, from the register and Companies House

Studio Hale Agent, registered in London

Active · incorporated 2023 · London

9 applications on PlanIndex · across 2 councils

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

16 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 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.

Nearby applications

Within 0.3 miles

  • 21 Upper Montagu Street London W1H 2PQ

    25/08055/FULL Submitted 5 Nov 2025 50 yards away

    87% historically approved · decision due ~31 Dec

    Replacement of single-glazed timber sash windows with slimline double-glazed timber sash windows to match the original in appearance, detailing and materials. (Linked to 25/08056/LBC)

    Awaiting decision Full applications Windows or glazing 16 docs
  • 21 Upper Montagu Street London W1H 2PQ

    25/06220/FULL Submitted 2 Sep 2025 50 yards away

    Careful dismantling and rebuilding of bowed flank elevation in matching/reused brickwork and replacement of existing timber joists to third floor. (Linked with 25/06221/LBC)

    Withdrawn Full applications 20 docs
  • 21 Upper Montagu Street London W1H 2PQ

    25/06221/LBC Submitted 2 Sep 2025 50 yards away

    Careful dismantling and rebuilding of bowed flank elevation in matching/reused brickwork and replacement of existing timber joists to third floor. (Linked with 25/06220/FULL)

    Withdrawn Heritage and listed buildings 19 docs
  • 105A Crawford Street London W1H 2HU

    25/07009/TELNOT Submitted 12 Sep 2025 50 yards away

    Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Building.

    Decided Telecoms
  • 103 - 105 Crawford Street London W1H 2HS

    04/02166/AD7 Submitted 19 Mar 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 at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

    Granted Advertising 2 docs
  • 25 Upper Montagu Street London W1H 1SA

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

    87% historically approved · decision due ~6 Jan

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

    Awaiting decision Full applications 7 docs

In Westminster

  • 26/04878/LBC Decided

    34 Grosvenor Street London W1K 4QU

    Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

    Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
  • 26/04141/LBC Decided

    80E Randolph Avenue London W9 1BG

    Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

    Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings
  • 26/06288/LBC Awaiting decision

    Barness Court 6 - 8 Westbourne Terrace London W2 3UW

    Installation of a new riser as per GW10 design comprising a single riser with 7 entries and 9 Taylor valves to be installed. (Linked with 26/06287/FULL)

    Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
  • 26/06270/LBC Awaiting decision

    Maisonette Basement And Ground Floor 101 Hereford Road London W2 5BB

    Amalgamation of existing lower ground and ground floor maisonette with the first floor flat to create a single dwelling and associated internal works including creation of a staircase. (Linked with 26/06269/FULL)

    Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
  • 26/06230/LBC Awaiting decision

    10 Bedford Street London WC2E 9HE

    Internal redecoration/refurbishment to the existing Caffe Nero including redecorating throughout, replacing the tiled floor in the customer area, raising the timber floor by 180mm on the left-hand side upon entry to bring interest to the area, for the existing large, boxed window cils on right-hand side upon entry; the one on the far right will be removed to give way for more seating, with the other being adapted to allow for leg space below, and two bespoke decorative chandeliers to be hung in the customer area which will be installed with structural engineer approval.

    Received 11 Sep, published by the council 21 Sep 2026 Heritage and listed buildings