First Floor And Second Floor Maisonette 25 Abbey Road London NW8 9AU

This site has had 2 applications since 2025.

• 25/07587/LBC Awaiting decision

  First Floor And Second Floor Maisonette 25 Abbey Road London NW8 9AU

  Amalgamation of two mezzanine flats to reinstate a single family dwelling and associated internal and external alterations. (Linked to 25/07586/FULL)

  Submitted 20 Oct 2025 Heritage and listed buildings

1. 20 Oct 2025

   Received by Westminster

2. 5 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 31 December 2025, 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 65 days over the applications it decided in the last year.

• 25/07587/LBC Awaiting decision

  First Floor And Second Floor Maisonette 25 Abbey Road London NW8 9AU

  Amalgamation of two mezzanine flats to reinstate a single family dwelling and associated internal and external alterations. (Linked to 25/07586/FULL)

  Submitted 20 Oct 2025 Heritage and listed buildings

1 later application on the register refers to this one:

• 25/07587/LBC Awaiting decision

  First Floor And Second Floor Maisonette 25 Abbey Road London NW8 9AU

  Amalgamation of two mezzanine flats to reinstate a single family dwelling and associated internal and external alterations. (Linked to 25/07586/FULL)

  Submitted 20 Oct 2025 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 89 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.

• First Floor And Second Floor Maisonette 25 Abbey Road London NW8 9AU

  25/07587/LBC Submitted 20 Oct 2025 0m away

  90% historically approved · decision due ~31 Dec

  Amalgamation of two mezzanine flats to reinstate a single family dwelling and associated internal and external alterations. (Linked to 25/07586/FULL)

  Awaiting decision Heritage and listed buildings New dwelling 8 docs
  Domestic

• 25 Abbey Road London NW8 9AU

  26/05238/FULL Submitted 3 Aug 2026 2m away

  87% historically approved · decision due ~9 Oct

  The construction of front and rear extensions at lower ground floor level, together with associated internal alterations, localised lowering and insulation of the basement floor, formation of new openings, repairs to the existing historic fabric, and landscaping works. (Linked with 26/05239/LBC)

  Awaiting decision Full applications Extension

• 25 Abbey Road London NW8 9AU

  26/05239/LBC Submitted 3 Aug 2026 2m away

  90% historically approved · decision due ~9 Oct

  The construction of front and rear extensions at lower ground floor level, together with associated internal alterations, localised lowering and insulation of the basement floor, formation of new openings, repairs to the existing historic fabric, and landscaping works. (Linked with 26/05238/FULL)

  Awaiting decision Heritage and listed buildings Extension

• 23-25 Abbey Road London NW8 9AU

  23/04012/LBC Submitted 14 Jun 2023 3m away

  Erection of dormer windows to side and rear roof slopes of 23 and 25 Abbey Road and internal alterations at 2nd floor levels to create access to new loft spaces. (Linked with 23/04011/FULL)

  Granted Heritage and listed buildings Loft or dormer Windows or glazing 17 docs

• 23-25 Abbey Road London NW8 9AU

  23/04011/FULL Submitted 14 Jun 2023 3m away

  Erection of dormer windows to side and rear roof slopes of 23 and 25 Abbey Road and internal alterations at 2nd floor levels to create access to new loft spaces. (Linked with 23/04012/LBC)

  Granted Full applications Loft or dormer Windows or glazing 21 docs

• 31 Abbey Road London NW8 9AU

  22/05042/TPO Submitted 25 Jul 2022 27m away

  3 x limes (T1 to T3): crown reduce to previous, most recent reduction points, retaining shortened furnishing growth and at least 50% of fine branch structure for crown continuity.

  Granted Trees 5 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  15 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

  15 Sep 2026 Full applications
• 26/06234/FULL Awaiting decision

  40 Grosvenor Place London SW1X 7HJ

  Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

  11 Sep 2026 Full applications
• 26/06249/FULL Awaiting decision

  53 Wimpole Street London W1G 8YH

  Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

  11 Sep 2026 Full applications
• 26/03576/FULL Decided

  15A Devonshire Terrace London W2 3DW

  Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

  1 Jun 2026 Full applications