85 Ashmill Street London NW1 6RA

1. 10 Apr 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 5 June 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.

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.

• 91 Ashmill Street London NW1 6RA

  26/04137/FULL Submitted 23 Jun 2026 50 yards away

  87% historically approved · decision due ~18 Aug

  Variation of condition 1 of planning permission dated 8th October 2024 (RN 24/04970/FULL) for the erection of rear extension to lower ground floor flat. NAMLEY, to change the design of the rear doors.

  Decided Full applications Extension

• 91 Ashmill Street London NW1 6RA

  26/02874/NMA Submitted 30 Apr 2026 50 yards away

  93% historically approved · decision due ~25 Jun

  Amendments to planning permission dated 9th October 2024 (RN:24/04970/FULL) for Erection of rear extension to lower ground floor flat. Namely, correction to the roof plan layout to align with the approved site plan, including two rooflights and amendments to the green roof layout, with the inclusion of gravel for fire safety.

  Awaiting decision Amendments Extension Loft or dormer 7 docs

• 91 Ashmill Street London NW1 6RA

  26/02873/FULL Submitted 30 Apr 2026 50 yards away

  87% historically approved · decision due ~8 Jul

  Installation of a air conditioning unit and acoustic enclosure.

  Awaiting decision Full applications 15 docs

• 5 Alpha House 1 Ashbridge Street London NW8 8AF

  07/03461/FULL Submitted 19 Apr 2007 50 yards away

  Infill of existing balcony at second floor level on Ashmill Street elevation with windows to create additional internal living space.

  Granted Full applications Extension Windows or glazing 8 docs

• 7 Alpha House 1 Ashbridge Street London NW8 8AF

  06/07211/FULL Submitted 7 Sep 2006 50 yards away

  Erection of ground floor rear extension providing additional floorspace to an existing flat.

  Granted Full applications Extension 9 docs

• 1 Alpha House 1 Ashbridge Street London NW8 8AF

  03/09097/FULL Submitted 25 Nov 2003 50 yards away

  Erection of ground floor rear extension providing additional floorsapce to an existing flat.

  Granted Full applications Extension 11 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