Orbis House 5 Mansfield Street London W1G 9NG

This site has had 5 applications since 2025: 2 approved, 0 refused.

• 26/04876/LBC Decided

  Orbis House 5 Mansfield Street London W1G 9NG

  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)

  Submitted 21 Jul 2026 Heritage and listed buildings
• 26/00954/ADFULL Granted

  Orbis House 5 Mansfield Street London W1G 9NG

  Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to condition 6 of planning permission dated 5th September 2024 (RN:24/01895/FULL)

  Decided 15 Apr 2026 Full applications
• 26/00940/ADLBC Granted

  Orbis House 5 Mansfield Street London W1G 9NG

  Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to Condition 6 of Listed Building Consent 05 September 2024 (RN24/01896/LBC)

  Decided 7 Apr 2026 Conditions
• 25/08080/CLEUD Awaiting decision

  Orbis House 5 Mansfield Street London W1G 9NG

  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 existing lawful use.

  Submitted 6 Nov 2025 Lawful development

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 66 days over the applications it decided in the last year.

• 26/04876/LBC Decided

  Orbis House 5 Mansfield Street London W1G 9NG

  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)

  Submitted 21 Jul 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 26/04876/LBC Decided

  Orbis House 5 Mansfield Street London W1G 9NG

  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)

  Submitted 21 Jul 2026 Heritage and listed buildings

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided amendment applications in a median of 54 days. More in our guide to how long planning decisions take.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 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

• Orbis House 5 Mansfield Street London W1G 9NG

  26/00954/ADFULL Submitted 16 Feb 2026 50 yards away

  Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to condition 6 of planning permission dated 5th September 2024 (RN:24/01895/FULL)

  Granted Full applications Windows or glazing 41 docs

• Orbis House 5 Mansfield Street London W1G 9NG

  26/00940/ADLBC Submitted 16 Feb 2026 50 yards away

  Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to Condition 6 of Listed Building Consent 05 September 2024 (RN24/01896/LBC)

  Granted Conditions Windows or glazing 20 docs

• Orbis House 5 Mansfield Street London W1G 9NG

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

  86% historically approved · decision due ~1 Jan

  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 existing lawful use.

  Awaiting decision Lawful development 20 docs
  Domestic

• 4 Mansfield Mews London W1G 9NL

  25/05100/LBC Submitted 22 Jul 2025 50 yards away

  Partial removal of existing roof to create new roof terrace, accessible via a new stair with 0.9m balustrade perimeter; new glazed screen to courtyard; new window to the South Elevation; replacement of external door with a window at south elevation; re-covering and reinsulation ofr oof pitch on the Mews road elevation; modifications to the Mews Elevation and the creation of an internal bin store; and internal alterations to create a new double-height living space and reconfiguring the layout to incorporate one bedroom, a kitchen, a shower room, and a WC. (Linked to 25/05099/FULL)

  Withdrawn Heritage and listed buildings Roofing Windows or glazing 25 docs

• 4 Mansfield Mews London W1G 9NL

  25/05099/FULL Submitted 22 Jul 2025 50 yards away

  Partial removal of existing roof to create new roof terrace, accessible via a new stair with 0.9m balustrade perimeter; new glazed screen to courtyard; new window to the South Elevation; replacement of external door with a window at south elevation; re-covering and reinsulation of roof pitch on the Mews road elevation; modifications to the Mews Elevation and the creation of an internal bin store; and internal alterations to create a new double-height living space and reconfiguring the layout to incorporate one bedroom, a kitchen, a shower room, and a WC. (Linked with 25/05100/LBC)

  Withdrawn Full applications Roofing Windows or glazing 20 docs

• 26/06232/NMA Awaiting decision

  37 Trevor Place London SW7 1LE

  Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.

  Received 11 Sep, published by the council 21 Sep 2026 Amendments
• 26/06256/NMA Awaiting decision

  Queens Court Queensway London W2 4QN

  Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.

  Received 11 Sep, published by the council 21 Sep 2026 Amendments
• 26/06251/NMA Awaiting decision

  19 Cumberland Street London SW1V 4LS

  Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.

  Received 11 Sep, published by the council 18 Sep 2026 Amendments
• 26/06201/NMA Awaiting decision

  Almack House 28 King Street St James's London SW1Y 6QW

  Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.

  Received 10 Sep, published by the council 17 Sep 2026 Amendments
• 26/06212/NMA Awaiting decision

  10 - 11 Lancaster Gate London W2 3LH

  Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)

  Received 10 Sep, published by the council 17 Sep 2026 Amendments