Flat 1 8 Upper Montagu Street London W1H 2PB

This site has had 2 applications since 2026.

• 26/04889/FULL Awaiting decision

  Flat 1 8 Upper Montagu Street London W1H 2PB

  Replacement of existing windows with timber slimline double-glazed windows, including two bay windows, and replacement of lower ground floor French doors with a double-glazed casement window. (Linked to 26/04890/LBC)

  Submitted 21 Jul 2026 Full applications

1. 21 Jul 2026

   Received by Westminster

2. 29 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 15 September 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.

• 26/04889/FULL Awaiting decision

  Flat 1 8 Upper Montagu Street London W1H 2PB

  Replacement of existing windows with timber slimline double-glazed windows, including two bay windows, and replacement of lower ground floor French doors with a double-glazed casement window. (Linked to 26/04890/LBC)

  Submitted 21 Jul 2026 Full applications

1 later application on the register refers to this one:

• 26/04889/FULL Awaiting decision

  Flat 1 8 Upper Montagu Street London W1H 2PB

  Replacement of existing windows with timber slimline double-glazed windows, including two bay windows, and replacement of lower ground floor French doors with a double-glazed casement window. (Linked to 26/04890/LBC)

  Submitted 21 Jul 2026 Full applications

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.

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.

• Flat 4 8 Upper Montagu Street London W1H 2PB

  26/06370/FULL Submitted 17 Sep 2026 50 yards away

  88% historically approved · decision due ~26 Nov

  Replacement of an existing timber single-glazed sash windows with a timber slimline double-glazed sash windows at third floor level. (Linked with 26/06369/LBC)

  Awaiting decision Full applications Windows or glazing

• Flat 4 8 Upper Montagu Street London W1H 2PB

  26/06369/LBC Submitted 17 Sep 2026 50 yards away

  90% historically approved · decision due ~26 Nov

  Replacement of an existing timber single-glazed sash windows with a timber slimline double-glazed sash windows at third floor level. (Linked with 26/06369/LBC)

  Awaiting decision Heritage and listed buildings Windows or glazing

• Flat 1 8 Upper Montagu Street London W1H 2PB

  26/04889/FULL Submitted 21 Jul 2026 50 yards away

  88% historically approved · decision due ~15 Sep

  Replacement of existing windows with timber slimline double-glazed windows, including two bay windows, and replacement of lower ground floor French doors with a double-glazed casement window. (Linked to 26/04890/LBC)

  Awaiting decision Full applications Windows or glazing 32 docs

• 16 Upper Montagu Street London W1H 2AN

  10/05775/LBC Submitted 8 Jul 2010 50 yards away

  Installation of Portland stone paving slabs to front area lightwell cross-over.

  Granted Heritage and listed buildings 9 docs

• Brymon Court 31 - 32 Montagu Square London W1H 2LH

  25/07520/FULL Submitted 17 Oct 2025 50 yards away

  Replacement of windows to the front, side and rear elevations with aluminium framed windows.

  Granted Full applications Windows or glazing 21 docs

• 30 Montagu Square London W1H 2LQ

  10/03246/FULL Submitted 12 Apr 2010 50 yards away

  Erection of rear extension to replace existing rear extension.

  Granted Full applications Extension 19 docs

• 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
• 26/07461/LBC Awaiting decision

  1 Savile Row London W1S 3JR

  Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings