21 ALABAMA STREET, PLUMSTEAD, LONDON, SE18 2SJ

1. 6 Dec 2022

   Received by Greenwich

2. 20 Dec 2022

   Validated

   Checked as complete and ready for consideration.

3. 8 Feb 2023

   Decision issued: Approve

4. 5 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 4 BARDEN STREET, PLUMSTEAD, LONDON, SE18 2EP

  26/1310/F Submitted 28 Apr 2026 48m away

  75% historically approved · decision due ~6 Jul

  Change of use from single dwelling house (Use Class C3) to a 6-person HMO (Use Class C4) including single storey wrap-around extension, L-shaped dormer extension, front roof lights, refuse and cycle storage with all associated works

  Awaiting decision Full applications Extension Loft or dormer 7 docs
  Small domestic

• 4 BARDEN STREET, PLUMSTEAD, LONDON, SE18 2EP

  26/1019/CP Submitted 30 Mar 2026 48m away

  Certificate of Lawfulness (Proposed) is sought for single-storey rear and infill extension, L-shaped dormer extension with front roof lights.

  Granted Lawful development Extension Loft or dormer 5 docs
  Small domestic

• 1C ANCASTER STREET, SE18 2HX

  25/3013/F Submitted 12 Sep 2025 52m away

  Change of use from existing single-family dwellinghouse (Use Class C3) to a 6-bed, 8-person HMO (Use Class Sui Generis), provision of cycle and refuse storage and all other associated alterations.

  Withdrawn Full applications 7 docs
  Domestic

• 1C ANCASTER STREET, LONDON, SE18 2HX

  25/4217/F Submitted 17 Dec 2025 52m away

  Change of use from an existing single-family dwellinghouse (Use Class C3) to a 5-bed, 6-person HMO (Use Class C4), provision of cycle and refuse storage and all other associated alterations.

  Granted Full applications 9 docs
  Domestic

• 125 FLAXTON ROAD, PLUMSTEAD, LONDON, SE18 2EW

  26/1295/CP Submitted 27 Apr 2026 75m away

  Certificate of Lawfulness (Proposed) is sought for erection of a single-storey rear infill extension projecting 3.0 metres from the original rear wall, together with the construction of an L-shaped rear dormer roof extension and installation of rooflights to the front roof slope.

  Granted Lawful development Extension Loft or dormer 5 docs
  Small domestic

• 125 FLAXTON ROAD, PLUMSTEAD, LONDON, SE18 2EW

  26/1330/F Submitted 30 Apr 2026 75m away

  75% historically approved · decision due ~25 Jun

  Change of use from an existing single-family dwellinghouse (Use Class C3) to a 6-bed, 6-person HM...

  Awaiting decision Full applications
  Domestic

• 26/1169/CP Granted

  30 BENARES ROAD, LONDON, SE18 1HY

  Certificate of Lawfulness (Proposed) is sought for Proposed rear roof dormer extension to facilitate internal accommodation improvements to an existing small House in Multiple Occupation (HMO) for up to six residents (Use Class C4).

  15 Apr 2026 Lawful development
• 26/1580/CP Withdrawn

  8 PARK ROW, GREENWICH, LONDON, SE10 9NG

  Certificate of Lawfulness (Proposed) is sought for garden room to the rear of the garden.

  26 May 2026 Lawful development
• 26/1505/CP Refused

  44 GREENVALE ROAD, ELTHAM, LONDON, SE9 1PD

  Certificate of Lawfulness (proposed) is sought for a hip to gable roof extension along with a rear dormer extension and insertion of roof lights to the front roof slope and elevational changes and window and door replacement to the rear.

  18 May 2026 Lawful development
• 26/1484/CP Granted

  325 WICKHAM LANE, PLUMSTEAD, LONDON, SE2 0NT

  Certificate of Lawfulness (Proposed) is sought for the erection of a Hip to Gable loft conversion with rear dormer and two front sky lights.

  15 May 2026 Lawful development
• 26/1485/CP Refused

  7 WILLENHALL ROAD, WOOLWICH, LONDON, SE18 6TY

  Certificate of Lawfulness (Proposed) is sought for change of use of a dwelling house (C3 A) to supported living home for young people (aged 16 plus) living together as a single household (C3 B Use).

  15 May 2026 Lawful development