Maclise House Marsham Street London SW1P 4JJ

This site has had 3 applications since 2025: 0 approved, 1 refused.

• 26/03715/LBC Awaiting decision

  Maclise House Marsham Street London SW1P 4JJ

  Retention of gas riser on rear elevations at north-western end of building. (Linked with 26/03714/FULL)

  Submitted 5 Jun 2026 Heritage and listed buildings
• 25/09001/FULL Refused

  Maclise House Marsham Street London SW1P 4JJ

  Installation of new gas riser and appropriate fittings.

  Decided 26 Mar 2026 Full applications

1. 5 Jun 2026

   Received by Westminster

2. 15 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 10 August 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.

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.

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.

• Flat 37 Maclise House Marsham Street London SW1P 4JJ

  25/09331/LBC Submitted 23 Dec 2025 50 yards away

  Internal alterations, including new openings, relocation of partition walls, and replacement floor.

  Granted Heritage and listed buildings 10 docs

• Maclise House Marsham Street London SW1P 4JJ

  25/09001/FULL Submitted 11 Dec 2025 50 yards away

  Installation of new gas riser and appropriate fittings.

  Refused Full applications 21 docs

• Maclise House Marsham Street London SW1P 4JJ

  26/03715/LBC Submitted 5 Jun 2026 50 yards away

  90% historically approved · decision due ~10 Aug

  Retention of gas riser on rear elevations at north-western end of building. (Linked with 26/03714/FULL)

  Awaiting decision Heritage and listed buildings 1 doc

• Millais House Marsham Street London SW1P 4JN

  22/01143/COLBC Submitted 21 Feb 2022 50 yards away

  Variation of condition 12 of listed building consent dated 8th December 2020 (RN 20/06290/COLBC) for the Installation of scaffold fixings, window repairs, roof repairs and installation of loft insulation, replacement of spalled brickwork/brickwork repairs and repointing, repairs and localised replacement of RWG and SVPs, replacement of flat entrance doors, replacement floor coverings, fire safety upgrades in communal areas and replacement lighting to communal areas, NAMELY to allow removal of pointing using mechanical disk cutting tools along with hand tools.

  Granted Heritage and listed buildings Windows or glazing 10 docs

• 121 Marsham Street London SW1P 4LX

  26/05251/ADV Submitted 4 Aug 2026 50 yards away

  82% historically approved · decision due ~29 Sep

  Display of two non-illuminated facia sings measuring 1.72m x 0.45m, two wall mounted signs measuring 1.00m x 1.00m, two measuring 0.4m x0.4m and one measuring 0.21m x .0.29.

  Decided Advertising

• 16 John Islip Street London SW1P 4JU

  26/05392/FULL Submitted 7 Aug 2026 50 yards away

  88% historically approved · decision due ~7 Oct

  Temporary change of use of the Parade Ground at Chelsea College of Arts from 10 September 2026 to 26 September 2026 for a Fashion Show, taking place on 21 September 2026, including the erection and dismantling of a temporary marquee and other associated structures and works ancillary to the event.

  Decided Full applications

• 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