21 Northway Road London SE5 9AN

1. 31 Jul 2026

   Received by Lambeth

2. 15 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 25 September 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 lawful development applications in a median of 56 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 45 Northway Road London SE5 9AN

  20/01219/LDCP Submitted 2 Apr 2020 50 yards away

  Application for a Certifcate of Lawful Development (Proposed) with respect with the erection of an 'L' shaped roof rear extension and the installation of three front roof lights.

  Granted Lawful development Extension Loft or dormer 17 docs

• 47 Northway Road London SE5 9AN

  26/00602/FUL Submitted 25 Feb 2026 50 yards away

  Erection of a single storey ground floor rear extension - Retrospective.

  Granted Full applications Extension 11 docs
  Small domestic

• 47 Northway Road London SE5 9AN

  26/00603/LDCP Submitted 25 Feb 2026 50 yards away

  84% historically approved · decision due ~22 Apr

  Application for Certificate of Lawfulness (Proposed) with respect to the erection of an L-shpared rear dormer together with the installation of 2 rooflights to the front roof slope.

  Awaiting decision Lawful development Loft or dormer 8 docs

• 30 Northway Road London SE5 9AN

  20/01010/LDCP Submitted 14 Mar 2020 50 yards away

  Application for Certificate of Lawfulness (proposed) with respect to the erection of an L-shaped rear dormer roof extension, together with the installation of 2 roof lights to the front roofslope.

  Granted Lawful development Extension Loft or dormer 13 docs

• 1 Kemerton Road London SE5 9AP

  26/01714/PDE Submitted 11 Jun 2026 100 yards away

  83% historically approved · decision due ~6 Aug

  Application for prior approval for the erection of a single storey ground floor side infill extension with dimensions of 6.00m (length), 4.00m (total maximum height) and 3.00m (height to the eaves) and new french doors to the rear elevation.

  Decided Extension Windows or glazing 13 docs
  Small domestic

• 32 Kemerton Road London Lambeth SE5 9AR

  25/03824/LDCP Submitted 10 Dec 2025 100 yards away

  Application for a Certificate of Lawful Development (Proposed) with respect to the erection of a rear 'L shaped' roof extension and the installation of two front roof lights.

  Refused Lawful development Extension Loft or dormer 11 docs

• 26/02558/LDCE Awaiting decision

  18 Narbonne Avenue London SW4 9JS

  Certificate of Lawful Development (existing) for the change of use of property from 2 dwellings to a single dwelling (Use Class C3).

  Received 21 Aug, published by the council 15 Sep 2026 Lawful development
• 26/02557/LDCP Awaiting decision

  47 Clive Road London SE21 8DA

  Certificate of Lawful Development (Proposed) with respect to erection of rear dormer roof extension; dormer roof extension over existing rear outrigger and installation of 3 x rooflights to the front roof slope.

  Received 21 Aug, published by the council 15 Sep 2026 Lawful development
• 26/02383/LDCP Awaiting decision

  19 Ivymount Road London SE27 0NB

  Certificate of Lawful Development (Proposed) with respect to provision of a vehicular crossover and dropped kerb to the front of the property together with associated alterations to the boundary treatment.

  Received 18 Aug, published by the council 15 Sep 2026 Lawful development
• 26/01071/LDCP Withdrawn

  36 Elms Road London Lambeth SW4 9EX

  Certificate of Lawful Development (Proposed) with respect to the erection of side and rear 'box' roof extensions including a side roof light and removal of a chimney.

  Received 2 Apr, published by the council 25 Jul 2026 Lawful development
• 26/02337/LDCP Awaiting decision

  34 Acland Crescent London SE5 8EQ

  Certificate of Lawful Development (Proposed) with respect to erection of a hip to gable roof extension together with the erection of a rear dormer with juliet balcony and installation of 2x rooflights to the front roofslope.

  Received 13 Aug, published by the council 15 Sep 2026 Lawful development