56 Harpenden Road London SE27 0AF

1. 6 Oct 2025

   Received by Lambeth

2. 19 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 30 Jan 2026

   Decision issued: Refuse Permission

4. 11 Aug 2026

   Added to PlanIndex

Lambeth refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

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.

• 40 Harpenden Road London SE27 0AE

  21/01741/FUL Submitted 30 Apr 2021 50 yards away

  Erection of a single storey ground floor rear and side infill extension and installation of a 2.4m high boundary wall.

  Granted Full applications Extension 18 docs
  Small domestic

• 21 Harpenden Road London SE27 0AG

  26/02581/FUL Submitted 10 Aug 2026 50 yards away

  78% historically approved · decision due ~5 Oct

  Erection of a ground floor side and rear extension and removal of a window with the addition of a door to the rear.

  Decided Full applications Extension Windows or glazing 8 docs

• 72 Harpenden Road London SE27 0AF

  24/00800/FUL Submitted 11 Mar 2024 50 yards away

  Change of use of the existing HMO (Use Class C4) to provide three self-contained flats (Use Class C3). Demolition of the existing rear extensions, together with the erection of a single storey ground floor rear extension. Installation of French doors at first floor level and new window at second floor. Installation of heat pumps to the ground floor rear. Provision of cycle & refuse storage to the front elevation. Installation of external wall insulation. Increasing the height to the existing boundary wall.

  Granted Full applications New dwelling Extension +2 14 docs
  Small domestic

• 34 Harpenden Road London SE27 0AE

  26/00529/LDCE Submitted 19 Feb 2026 50 yards away

  Certificate of Lawful Development (existing) for the use of 2 self contained flats at 34 Harpenden Road.

  Granted Lawful development New dwelling 10 docs

• 34 Harpenden Road London SE27 0AE

  26/01401/FUL Submitted 6 May 2026 50 yards away

  78% historically approved · decision due ~1 Jul

  Erection of a rear dormer extension including two roof lights to the front and two mansard windows to the rear (top floor flat)

  Decided Full applications Extension Loft or dormer +1 9 docs

• 11 Ullswater Road London SE27 0AL

  26/00030/LDCP Submitted 6 Jan 2026 100 yards away

  Application for a Certificate of Lawful Development (Proposed) with respect to use of existing property as a residential care home (Use Class C2

  Refused Lawful development 5 docs

• 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