2 Mansfield Street London W1G 9NZ

This site has had 3 applications since 2026.

• 26/05715/LBC Awaiting decision

  2 Mansfield Street London W1G 9NZ

  Installation of full fibre cables on and through the building.

  Submitted 20 Aug 2026 Heritage and listed buildings
• 26/05035/FULL Decided

  2 Mansfield Street London W1G 9NZ

  Installation of an external air conditioning condenser unit at main roof level and associated external pipework (Flat 41).

  Submitted 27 Jul 2026 Full applications

1. 27 Jul 2026

   Received by Westminster

2. 4 Aug 2026

   Added to PlanIndex

3. 15 Sep 2026

   Status changed to Decided

   Previously Pending.

• 26/05035/FULL Decided

  2 Mansfield Street London W1G 9NZ

  Installation of an external air conditioning condenser unit at main roof level and associated external pipework (Flat 41).

  Submitted 27 Jul 2026 Full applications

1 later application on the register refers to this one:

• 26/05035/FULL Decided

  2 Mansfield Street London W1G 9NZ

  Installation of an external air conditioning condenser unit at main roof level and associated external pipework (Flat 41).

  Submitted 27 Jul 2026 Full applications

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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.

• 2 Mansfield Street London W1G 9NZ

  26/05715/LBC Submitted 20 Aug 2026 50 yards away

  90% historically approved · decision due ~15 Oct

  Installation of full fibre cables on and through the building.

  Awaiting decision Heritage and listed buildings

• 2 Mansfield Street London W1G 9NZ

  26/05035/FULL Submitted 27 Jul 2026 50 yards away

  88% historically approved · decision due ~21 Sep

  Installation of an external air conditioning condenser unit at main roof level and associated external pipework (Flat 41).

  Decided Full applications 10 docs

• 9 Mansfield Street London W1G 9NZ

  25/06413/LBC Submitted 8 Sep 2025 50 yards away

  90% historically approved · decision due ~20 Nov

  External alterations including the installation of replacement windows and doors. Installation of garage doors in place of to two windows on the Mansfield Mews frontage, installation of replacement roof lights, removal of roof lights at main roof level, removal of cantilevered outrigger WC at rear first floor level, alterations to fenestration of the mews portion of the building facing the internal courtyard to mews portion of building. Reconstruct port of brick parapet, installation of plant at main roof level. Internal alterations throughout [SITE INCLUDES 6 MANSFIELD MEWS]

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +2 152 docs

• 9 Mansfield Street London W1G 9NZ

  25/06412/FULL Submitted 8 Sep 2025 50 yards away

  88% historically approved · decision due ~20 Nov

  Use as building as a single family dwellinghouse (Class C3). External alterations including the installation of replacement windows and doors. Installation of garage doors in place of to two windows on the Mansfield Mews frontage, installation of replacement roof lights, removal of roof lights at main roof level, removal of cantilevered outrigger WC at rear first floor level, alterations to fenestration of the mews portion of the building facing the internal courtyard to mews portion of building. Reconstruct part of brick parapet, installation of plant at main roof level . [SITE INCLUDES 6 MANSFIELD MEWS]

  Awaiting decision Full applications Extension Loft or dormer +2 156 docs
  Domestic

• Orbis House 5 Mansfield Street London W1G 9NG

  25/08080/CLEUD Submitted 6 Nov 2025 50 yards away

  Confirmation that the material change of use from office to use as a single family dwelling house under planning permission (RN 12/09926/FULL) has taken place and that use as a single family dwelling house is now the building's lawful use.

  Granted Lawful development 25 docs
  Domestic

• Orbis House 5 Mansfield Street London W1G 9NG

  26/04876/LBC Submitted 21 Jul 2026 50 yards away

  90% historically approved · decision due ~15 Sep

  Provision of guarding system to provide safe access for maintenance across the roof; alteration at south elevations omitting window SFW11 from the new WC, remove the existing RWP from the internal courtyard corner, removal of the existing plastic section of a redundant vent pipe at lower level and retain original lead; new cast iron rain water pipes at west elevation; and internal layout alterations at basement, ground, 2nd, 3rd floors. (Linked with 26/04873/NMA)

  Decided Heritage and listed buildings Windows or glazing

• 26/07202/LBC Awaiting decision

  Basement East And Ground Floor And First Floor 33 Weymouth Street London W1G 7BY

  Replacement of 13 doorsets with fire doors.

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
• 26/07183/LBC Awaiting decision

  306 - 308 Regent Street London W1B 3AT

  Installation of a manually operated retractable fabric awning to the existing shopfront at 308 Regent Street, comprising an orange fabric canopy with discreet printed lettering to the front valance, together with associated supporting framework, mounting brackets and fixings to the existing fa?ade.

  Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
• 26/07191/LBC Awaiting decision

  6 Wilton Place London SW1X 8RH

  Layout alterations and replacement of internal doors.

  Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
• 26/07199/LBC Awaiting decision

  49 Queen's Gardens London W2 3AA

  Erection of a mansard roof extension incorporating rooflights and a rear balcony; installation of Juliet balconies at ground and first floor levels to the rear; demolition of the existing courtyard extension and erection of a single-storey infill extension; extension of the rear wing at first floor (mezzanine) and second floor levels; fenestration alterations including the installation of new windows; stucco repairs and partial rebuilding of the rear extensions; and associated internal alterations at all levels. (Linked to 26/07198/FULL)

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
• 26/07192/LBC Awaiting decision

  119 Warwick Way London SW1V 4HS

  Conversion and internal alterations to the ground floor flat (Retrospective)

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings