Flat 6 18 Dorset Square London NW1 6QB

This site has had 3 applications since 2026.

• 26/05763/ADLBC Decided

  Flat 6 18 Dorset Square London NW1 6QB

  Details vertical and horizontal sections through new window and door joinery, including double glazing and relationship of joinery to openings/dormers; pursuant to condition 3 of Listed Building consent dated 8th May 2026 (26/00742/LBC)

  Submitted 24 Aug 2026
• 26/00742/LBC Awaiting decision

  Flat 6 18 Dorset Square London NW1 6QB

  Replacement of windows and door with new at fourth and fifth floor levels. (linked wth 26/01672/FULL)

  Submitted 9 Feb 2026 Heritage and listed buildings

1. 16 Mar 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 11 May 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.

1 later application on the register refers to this one:

• 26/00742/LBC Awaiting decision

  Flat 6 18 Dorset Square London NW1 6QB

  Replacement of windows and door with new at fourth and fifth floor levels. (linked wth 26/01672/FULL)

  Submitted 9 Feb 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 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 6 18 Dorset Square London NW1 6QB

  26/05763/ADLBC Submitted 24 Aug 2026 50 yards away

  89% historically approved · decision due ~19 Oct

  Details vertical and horizontal sections through new window and door joinery, including double glazing and relationship of joinery to openings/dormers; pursuant to condition 3 of Listed Building consent dated 8th May 2026 (26/00742/LBC)

  Decided Loft or dormer Windows or glazing

• 17 Dorset Square London NW1 6QB

  25/04537/FULL Submitted 2 Jul 2025 50 yards away

  Variation of condition 1 of planning permission dated 22nd August 2024 (RN 24/02030/FULL ) for the Use of building as two residential units (Class C3); Demolition and replacement of rear infill extension at lower ground and ground floor levels; Alterations to fenestration; Installation of plant machinery to front vaults and at roof level within enclosure; and associated external alterations. Internal alterations, including changes to plan form and refurbishment. NAMELY, Internal layout amendments and general refurbishment and revised drawings to reflect the proposed changes to the A/C and rear roof. (Linked to 25/04700/LBC)

  Decided Full applications Extension Demolition +1 20 docs

• 15 - 17 Huntsworth Mews London NW1 6DE

  06/10231/ADFULL Submitted 20 Dec 2006 50 yards away

  Details of cable routes and louvre screening pursuant to Conditions 5 and 6 of planning permission dated 16 November 2006 (RN: 06/04407).

  Granted Full applications 3 docs

• 15 - 17 Huntsworth Mews London NW1 6DE

  05/04775/FULL Submitted 16 Jun 2005 50 yards away

  Retention of three air conditioning units on the rooftop.

  Refused Full applications 8 docs

• 15 - 17 Huntsworth Mews London NW1 6DE

  05/04774/CLEUD Submitted 16 Jun 2005 50 yards away

  Installation of six air conditioning units on rooftop.

  Granted Lawful development 7 docs

• 15 - 17 Huntsworth Mews London NW1 6DE

  06/04407/FULL Submitted 6 Jun 2006 50 yards away

  Relocation of three air conditioning units and addition of four further units within an acoustic screen on the rooftop.

  Granted Full applications 9 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
• 26/06317/FULL Awaiting decision

  124 Hamilton Terrace London NW8 9UT

  Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

  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 natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

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