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Planning application

Buckingham Palace The Mall London SW1A 1AA

Granted Westminster 25/06026/FULL Full Planning Permission Application

Works: Loft or dormer

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Replacement of 6no roof lights and installation of two new sets of walkway steps on the Buckingham Palace South Range roof. (Linked with 25/00108/LBC)

As published by the council, reference 25/06026/FULL

Application record

Reference
25/06026/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
22 Aug 2025
Validated
22 Aug 2025
Decided
7 Oct 2025
Ward
St James's
Decision by
Delegated Decision
Postcode
SW1A 1AA

Site history

Applications at this address on the Westminster register

This site has had 43 applications since 2025: 15 approved, 0 refused.

  • 26/06040/ADLBC Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Samples of finishes and locations of control boxes, emergency buttons and any associated signage in 'front of house' areas; pursuant to condition 5(b) of Listed Building Consent dated 2nd March 2026 (25/07714/LBC)

    Submitted 3 Sep 2026
  • 26/05894/LBC Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Internal alterations to extend the Clockmakers Staircase up to second floor level to provide new means of escape, fire upgrade and general refurbishment and redecorations.

    Submitted 27 Aug 2026 Heritage and listed buildings
  • 26/05815/TCA Decided

    Buckingham Palace The Mall London SW1A 1AA

    1638 Platanus x hispanica (London Plane) - Reduce lateral branches by 3m to the east and south and 1.5m to the west, to suitable branch junctions. 1639 Platanus x hispanica (London Plane) - Reduce lower crown to the south to allow 2.5m clearance under street light. 1643 Platanus x hispanica (London Plane) - Reduce selected over-extended lateral limbs by 4m to the east, and by 2.5m to the west to suitable branch junctions. 1645 Platanus x hispanica (London Plane) - Prune lower crown to the north to allow 2m clearance from temporary buildings. 1647 Platanus x hispanica (London Plane) - Reduce lateral limbs by 3m to the west to suitable branch junctions. Removal of limb with topside decay at 8m projecting north. 1649 Platanus x hispanica (London Plane) - Reduce the crown height by 3m and lateral spread by 2.5m to the east and south, and by 1.5m to the north and west to suitable branch junctions (as indicated in the submitted photograph). 1651 Platanus x hispanica (London Plane) - Overall crown reduction by up to 3m to the previous pruning points. 2660 Platanus x hispanica (London Plane) - Reduce selected over-extended lateral limbs by approximately 2.5m to the north, south, and west, and 1m to the east to suitable branch junctions. 2662 Platanus x hispanica (London Plane) - Reduce main lateral limb at 8m projecting to the south-west by 3.5m. Reduce lower lateral branches by 3m to the north. Reduce one limb to the west by 3m and selected branch projecting east into the canopy of tree 2663. All reductions to suitable branch junctions. 2663 Platanus x hispanica (London Plane) - Reduce upper canopy to the east by 2.5m, mid canopy to the south by 3m, lower canopy to south west by 1-2m and lower limb to north east by 2-3m. All reductions to suitable branch junctions.

    Submitted 25 Aug 2026 Trees
  • 26/05439/TCA Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    68 Ailanthus altissima (Tree of Heaven) - Reduce lateral spread of the crown to the west to allow 1.5m clearance from camera and light column. 1255 Platanus x hispanica (London Plane) - Carry out tip-reduction of lateral limb projecting north at 12m by 3m to mitigate risk of failure associated with presence of Inonotus hispidus. Carry out a crown reduction of up to 3m in height and spread to reduce wind-loading stresses on the main stem at 8m and at 16m. Remove dead stub at 16m. 1294 Robinia pseudoacacia (False Acacia) - Reduce crown to historic pollard points at approx. 9m to mitigate risk of failure of the main stem. 1341 Sorbus latifolia (Broad-leaved Whitebeam) - Reduce the crown in height by up to 3m with a lateral reduction of 1.5m to 2m, to lower the risk of failure associated with decay near the main stem union. 1571 Platanus x hispanica (London Plane) - Reduce the crown in height by 5m, with a lateral reduction of 2.5 to 4m to reduce the likelihood of failure due to the discoverable decay within the union area and to allow clearance from adjacent lamp column.

    Submitted 11 Aug 2026 Trees
  • 26/05440/TCA Decided

    Buckingham Palace The Mall London SW1A 1AA

    1281 Platanus x hispanica (London Plane) - Fell to ground level. 1382 Platanus x hispanica (London Plane) - Overall crown reduction in height and laterally by 1.5-2m to suitable growth points. 1457 Fraxinus excelsior 'Jaspidea' (Yellow Ash) - 1. Reduce lateral limb projecting north at 5m by 2.5m (to include sub-lateral originating from approx. 3.5m out on parent limb). 2. Reduce lateral limb projecting south at 6m by 3.5m. 3. Reduce limb projecting south-west by 3m. 4. Reduce upper crown height by up to 3m. Remove - Remove failed, hanging limb at approx. 8m west. 1460 Sophora japonica (Pagoda Tree) - Fell tree to ground level. 1497 Acer pseudoplatanus (Sycamore) - Carry out a crown reduction of height and spread by up to 5m. 1509 Davidia involucrata (Handkerchief Tree) - Reduce crown height and spread by up to 2m (reducing to, and retaining, live wood). 1596 Betula pubescens (Downy Birch) - Fell tree to ground level.

    Submitted 11 Aug 2026 Trees
  • 26/05438/TCA Decided

    Buckingham Palace The Mall London SW1A 1AA

    372 Prunus sargentii (Sargent's Cherry). Remove diseased material from crown. 395 Ilex x altaclarensis 'Golden King' (Variegated Holly). Reduce crown in height by 5-6m and laterally by 2.5m. 604 Populus X canadensis (Hybrid Poplar). Reduce crown by 30-40 per cent 830 Crataegus monogyna (Hawthorn). Remove partially failed branch at 4m. 1014 Malus floribunda (Japanese Crab). Fell recently failed tree. 1377 Acer pseudoplatanus (Sycamore). Cut back one number limb toward the east 2m back from security fence. 1428 Acer pseudoplatanus (Sycamore). Reduce the lateral spread of the crown to the west to allow 1.5m clearance from lamp column and remove hanging branch. 1512 Morus nigra (Black Mulberry) Reduce the lateral spread of the crown by 1.5m to the north and 3.5m to the east. 1592 Gymnocladus dioica (Kentucky coffee tree). Remove partially failed branch at approx 8m to the west. 1619 Castanea sativa (Sweet Chestnut). Fell tree standing dead tree. 1668 Platanus x hispanica (London Plane). Reduce 2 no. over-extended limbs at 6m and 8m projecting north by up to 2.5m.

    Submitted 11 Aug 2026 Trees
  • 26/04738/ADLBC Decided

    Buckingham Palace The Mall London SW1A 1AA

    Details of masonry cleaning pursuant to condition 3 of listed building consent dated 09 March 2026 (RN: 25/07846/LBC)

    Submitted 15 Jul 2026
  • 26/04125/LBC Decided

    Buckingham Palace The Mall London SW1A 1AA

    West Wing Group D Basement Corridor additional works associated with reservicing.

    Submitted 23 Jun 2026 Heritage and listed buildings
  • 26/03299/LBC Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    West Wing Ballroom and Lightwell 1 Basement works associated with reservicing

    Submitted 19 May 2026 Heritage and listed buildings
  • 26/03133/FULL Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    West Wing Lightwell 1 Safe access system (Linked 26/03134/LBC)

    Submitted 12 May 2026 Full applications

Timeline

Dates from the published record

  1. 22 Aug 2025

    Received by Westminster

  2. 7 Oct 2025

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Martin Ashley Architects Agent, an architecture practice

11 applications on PlanIndex · across 3 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

6 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.

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Open the documents

What this grant of permission means

Westminster granted permission on 7 October 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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 500 metres

  • Buckingham Palace The Mall London SW1A 1AA

    25/07433/LBC Submitted 14 Oct 2025 26m away

    Internal alterations including repainting, new seating, new suspended ceiling with lighting, new furnishings, and other light refurbishment works to guard catering and dining space

    Granted Heritage and listed buildings 4 docs
  • Buckingham Palace The Mall London SW1A 1AA

    25/06244/LBC Submitted 3 Sep 2025 28m away

    New silk wall coverings and integrated lighting for Picture Gallery and Silk Tapestry Room.

    Granted Heritage and listed buildings 20 docs
  • Buckingham Palace The Mall London SW1A 1AA

    25/07869/LBC Submitted 30 Oct 2025 44m away

    Installation of a feeder pillar in the basement to support the approved electric vehicle charging points near the south wing of The Forecourt.

    Granted Heritage and listed buildings 5 docs
  • Buckingham Palace The Mall London SW1A 1AA

    25/05574/LBC Submitted 8 Aug 2025 44m away

    90% historically approved · decision due ~3 Oct

    South Wing asset protection works.

    Awaiting decision Heritage and listed buildings 5 docs
  • Buckingham Palace The Mall London SW1A 1AA

    25/06376/TDD Submitted 8 Sep 2025 70m away

    1 dead cherry tree (1271) adjacent to boundary wall, with Grosvenor Place): fell

    Decided Trees 1 doc
    Small domestic
  • Buckingham Palace The Mall London SW1A 1AA

    25/05215/LBC Submitted 25 Jul 2025 75m away

    90% historically approved · decision due ~30 Sep

    East Wing asset protection works

    Awaiting decision Heritage and listed buildings 4 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06234/FULL Awaiting decision

    40 Grosvenor Place London SW1X 7HJ

    Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/06249/FULL Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/03576/FULL Decided

    15A Devonshire Terrace London W2 3DW

    Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

    Received 1 Jun, published by the council 11 Sep 2026 Full applications