17 Thornbury Road London SW2 4DL

1. 29 Sep 2026

   Received by Lambeth

2. 9 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 24 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Lambeth took a median of 56 days over the applications it decided in the last year.

This application is with Lambeth for determination, against a statutory target of eight weeks. Over the last year Lambeth decided full applications in a median of 66 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.

• 49 Thornbury Road London SW2 4DL

  16/04905/FUL Submitted 17 Aug 2016 50 yards away

  Erection of a single storey ground floor rear and side and rear infill extension

  Refused Full applications Extension 11 docs
  Small domestic

• 49 Thornbury Road London SW2 4DL

  16/04903/LDCP Submitted 17 Aug 2016 50 yards away

  Application for a Certificate of Lawful Development (Proposed) with respect to erection of a single storey ground floor rear and side infill extension

  Refused Lawful development Extension 10 docs
  Small domestic

• 27 Thornbury Road London Lambeth SW2 4DL

  26/00999/LDCP Submitted 27 Mar 2026 50 yards away

  Application for a Certificate of Lawful Development (Proposed) with respect to the erection of a rear roof extension incorporating a juliet balcony and the installation of three roof lights to the front and to the rear outrigger.

  Granted Lawful development Extension Loft or dormer 6 docs

• 27 Thornbury Road London Lambeth SW2 4DL

  26/01001/FUL Submitted 27 Mar 2026 50 yards away

  Erection of a single storey ground floor side/rear infill extension with side pitched roof and flat rear roof including roof lights.

  Granted Full applications Extension Loft or dormer 9 docs
  Small domestic

• 23 Thornbury Road London SW2 4DL

  20/01926/FUL Submitted 11 Jun 2020 50 yards away

  Erection of rear roof dormer extension, installation of 2 front rooflights and replacement of existing windows.

  Refused Full applications Extension Loft or dormer +1 18 docs

• 28 Rosebery Road London SW2 4DD

  24/02487/FUL Submitted 7 Aug 2024 50 yards away

  Erection of a single storey ground floor side extension. Alteration to fenestration including removal of chimney stack and reduction in size of existing first floor side window. Introduction of a high-level window to the ground floor rear elevation.

  Granted Full applications Extension Windows or glazing 8 docs
  Small domestic

• 26/03073/FUL Awaiting decision

  10 Claverdale Road London SW2 2DP

  Erection of a single storey ground floor rear side infill extension. Erection of a rear dormer roof extension with juliet balcony and installation of a roof light to rear return roof.

  Received 20 Oct, published by the council 23 Oct 2026 Full applications
• 26/03040/FUL Awaiting decision

  3 Walberswick Street London Lambeth SW8 1XF

  Erection of a second-storey rear extension and the addition of a window to the mansard. Reduction from a double sliding door to a single door with a Juliet balcony

  Received 15 Oct, published by the council 21 Oct 2026 Full applications
• 26/03004/FUL Awaiting decision

  61 Amesbury Avenue London Lambeth SW2 3AE

  Erection of a single storey rear infill extension, replacement of the existing timber sash windows with double glazed timber sash windows, erection of new fence to front patio and installaton of Air Source Heat Pump to existing roof.

  Received 14 Oct, published by the council 21 Oct 2026 Full applications
• 26/02990/FUL Awaiting decision

  85 Clapham Manor Street London Lambeth SW4 6DR

  Construction of a mansard-roof extension to provide additional residential accommodation.

  Received 13 Oct, published by the council 23 Oct 2026 Full applications
• 26/02988/FUL Awaiting decision

  76 Bonham Road London Lambeth SW2 5HG

  Change of use of the ground floor to self contained unit (class C3), upper floors and loft to a large House in Multiple Occupation (Sui Generis), together with sub-division of the rear garden, installation of 2x rooflights to front roofslope, conversion of the existing garage to ancillary residential gym use, installation of air source heat pumps, and provision of cycle and refuse storage.

  Received 13 Oct, published by the council 22 Oct 2026 Full applications