91 Ashmill Street London NW1 6RA

This site has had 3 applications since 2026.

• 26/04137/FULL Decided

  91 Ashmill Street London NW1 6RA

  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.

  Submitted 23 Jun 2026 Full applications
• 26/02874/NMA Awaiting decision

  91 Ashmill Street London NW1 6RA

  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.

  Submitted 30 Apr 2026 Amendments

1. 30 Apr 2026

   Received by Westminster

2. 13 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 8 July 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 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.

• 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

• 85 Ashmill Street London NW1 6RA

  26/02373/NMA Submitted 10 Apr 2026 50 yards away

  93% historically approved · decision due ~5 Jun

  Amendments to planning permission dated 15th August 2024 (RN:24/04547/FULL) for Alterations to front railings, new entrance gate and steps, including wheelchair stairlift to entrance to 85, new rear door to 85 and new rear ramp and patio. Namely, additional wall-fixed handrail to proposed stairs.

  Awaiting decision Amendments 7 docs

• 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

• 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

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront with Medication Dispensing Outlet.

  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 replacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06294/FULL Awaiting decision

  15 Eaton Mews South London SW1W 9HP

  Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06273/FULL Awaiting decision

  9A Grosvenor Square London W1K 5AE

  Installation of new natural Portland Stone step surfaces to the two highway facing front entrance doors. (Linked to 26/05473/LBC)

  Received 14 Sep, published by the council 22 Sep 2026 Full applications
• 26/06277/FULL Awaiting decision

  Hospital 60 Grove End Road London NW8 9NH

  Variation of conditions 1 and removal of condition 6 of planning permission dated 12th November 2019 (RN 19/07202/FULL) for the Variation of condition 12 of planning permission dated 21 June 2013 (RN: 13/01330/FULL) for the: Demolition of single storey block to north east elevation of main hospital building. Erection of three storey building (plus basement level) with link to existing hospital fronting onto Grove End Road and erection of two storey extension to the main entrance building, both to provide additional hospital accommodation (Class D1). Installation of mechanical plant and associated external alterations. NAMELY, to include amended phase 2 drawings and condition 6 to be removed as the as approved 11 car parking space are no longer proposed and the car lift is no longer shown on the amended plans.

  Received 14 Sep, published by the council 22 Sep 2026 Full applications