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 65 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 91 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

  84% 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

  87% 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 works ancillary to the event.

  Awaiting decision Full applications

• 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