21 DERBY HILL, LONDON, SE23 3YD

1. 28 Apr 2021

   Received by Lewisham

2. 23 Jun 2021

   Decision issued: Granted

3. 20 Aug 2026

   Added to PlanIndex

Lewisham granted permission on 23 June 2021, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 42 DERBY HILL, LONDON, SE23 3YD

  DC/18/110094 Submitted 12 Dec 2018 50 yards away

  Certificate of Lawful Development (Proposed) for the construction of a hip-to-gable and rear dormer extension loft conversion at 42 Derby Hill, SE23, incorporating rooflights on the front roofslope.

  Refused Lawful development Extension Loft or dormer 9 docs

• 3 DERBY HILL, LONDON, SE23 3YD

  DC/21/122094 Submitted 4 Jun 2021 50 yards away

  Demolition of existing garage, new single storey side extension, replace existing porch with new. Convert the existing roof from hip to gable, new dormer to rear roof slope. 2 no. roof lights to front roof slope, 2 no. rooflights to new pitched roof to side extension and 2 no. rooflights to dormer flat roof. Replacement of existing window to side elevation. Repairs to boundary wall, installation of new gate, resurfacing of front driveway and path.

  Withdrawn Householder Extension Loft or dormer +3
  Small domestic

• 50 DERBY HILL, LONDON, SE23 3YD

  DC/26/143246 Submitted 9 Mar 2026 50 yards away

  Construction of a single-storey rear extension and replacement of rear first floor bay window with a flush window to 50 Derby Hill, SE23.

  Granted Householder Extension Windows or glazing 9 docs
  Small domestic

• 13 DERBY HILL, LONDON, SE23 3YD

  DC/18/109917 Submitted 29 Nov 2018 50 yards away

  The construction of a part one/two storey side extension at 13 Derby Hill, SE23, together with the relocation of the crossover, alterations to the front and side boundary treatments and hard and soft landscaping of the front driveway REVISED DESCRIPTION

  Refused Householder Extension 11 docs
  Domestic

• 50 DERBY HILL, LONDON, SE23 3YD

  DC/26/143247 Submitted 9 Mar 2026 50 yards away

  Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes B and C of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a hip-to-gable and rear roof extension and installation of four front-slope roof lights to 50 Derby Hill, SE23

  Granted Lawful development Extension Loft or dormer 9 docs

• 42 DERBY HILL, LONDON, SE23 3YD

  DC/19/111588 Submitted 25 Mar 2019 50 yards away

  Retrospective planning permission for the construction of a hip to gable end extension and a roof extension incorporating Juliet balcony in the rear roof slope at 42 Derby Hill SE23, together with the installation of rooflights in the front roof slope and a new window in the side.

  Granted Householder Extension Loft or dormer +1 10 docs
  Domestic

• DC/26/144603 Granted

  6 FRIENDLY STREET, LONDON, SE8 4DT

  Patial demoltion of existing rear additions, construction of a new single storey rear extension and all associated works at 6 Friendly Street, SE8

  Received 6 Jul, published by the council 3 Aug 2026 Householder
• DC/26/145239 Awaiting decision

  18 ARICA ROAD, LONDON, SE4 2PX

  Construction of a single-storey side/rear wraparound extension featuring roof terrace with glazed privacy screen, L-shape rear roof extension with juliet balacony and two rooflights to the front roofslope of 18 Arica Road, London, SE4 2PX

  Received 31 Aug, published by the council 9 Sep 2026 Householder
• DC/26/145216 Awaiting decision

  54A ALLERFORD ROAD, LONDON, SE6 3DF

  Erection of a single-storey rear extension, roof extensions including side/rear dormer structures and rooflights, installation of a front entrance canopy, and associated internal and external alterations at 54A Allerford Road SE6.

  Received 28 Aug, published by the council 8 Sep 2026 Householder
• DC/26/145218 Awaiting decision

  24 THORNWOOD ROAD, LONDON, SE13 5RG

  The construction of a single-storey rear extension and rear terrace at 24 Thornwood Road, SE13.

  Received 28 Aug, published by the council 10 Sep 2026 Householder
• DC/26/145214 Awaiting decision

  87 GUIBAL ROAD, LONDON, SE12 9HF

  The construction of a two-storey hipped-roof rear extension, replacing the existing conservatory; the construction of a single-storey flat-roof rear extension and a single-storey flat-roof side extension; the formation of an integral garage with associated alterations to the principal elevation, including the installation of garage doors; the replacement of windows and doors on the principal, rear and side elevations; the replacement and repositioning of rooflights; the application of external wall render to the principal elevation; the removal of existing arched features and their replacement with rectangular openings; the removal of soft landscaping and installation of permeable hardstanding to the front garden and driveway at 87 Guibal Road, SE12.

  Received 28 Aug, published by the council 8 Sep 2026 Householder