20/00836/LDC

1. 10 Aug 2020

   Received by Watford

2. 19 Aug 2020

   Decision issued: Grant Lawful Development Certificate

3. 24 Jul 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

• 22/00456/LDC Granted

  88 Cassiobury Park Avenue Watford Hertfordshire WD18 7LF

  Lawful development certificate of proposed erection of single storey side extension on existing detached garage

  5 Apr 2022 13m away Lawful development
• 23/00984/HPD Granted

  94 Cassiobury Park Avenue Watford WD18 7LF

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 5.0m for which the maximum height would be 4.0m and for which the height of the eaves would be 2.40m

  27 Oct 2023 47m away Prior approval
• 26/00438/FULH Awaiting decision

  14 Swiss Avenue Watford WD18 7LN

  Erection of single storey part rear and part side extension

  10 Jun 2026 70m away Householder
• 26/00396/LDC Granted

  14 Swiss Avenue Watford WD18 7LN

  Lawful Development Certificate for proposed loft conversion including rear dormer extension, two rear-facing windows and x3 front rooflights

  27 May 2026 70m away Lawful development
• 26/00548/FULH Awaiting decision

  105 Cassiobury Park Avenue Watford WD18 7LH

  Conversion of the existing garage to habitable use. Erection of a single storey side extension with a new hipped roof to the single storey side of the dwelling covering both the converted garage and the extension.

  17 Jul 2026 77m away Householder
• 25/00426/FULH Decided

  77 Cassiobury Park Avenue Watford WD18 7LD

  Erection of a single storey rear extension.

  2 May 2025 84m away Householder

• 26/00416/LDC Granted

  249 Hempstead Road Watford WD17 3HH

  Lawful Development Certificate for a loft extension incorporating a rear flat-roof dormer and installation of three rooflights to the front roof slope, Garage conversion and front porch canopy.

  4 Jun 2026 Lawful development
• 26/00485/LDC Granted

  Shrodells Unit Watford General Hospital Vicarage Road Watford WD18 0HB

  Lawful development certificate for proposed single storey extension to Shrodells Unit

  26 Jun 2026 Lawful development
• 26/00555/LDC Awaiting decision

  81 Tudor Walk Watford Hertfordshire WD24 7NZ

  Lawful Development Certificate for a hip-to-gable roof enlargement, rear dormer, alterations to the roof of the existing two-storey rear extension and associated rooflights.

  20 Jul 2026 Lawful development
• 26/00549/LDC Awaiting decision

  4 Field Road Watford WD19 4DR

  Lawful Development Certificate to replace single storey rear extension.

  17 Jul 2026 Lawful development
• 26/00396/LDC Granted

  14 Swiss Avenue Watford WD18 7LN

  Lawful Development Certificate for proposed loft conversion including rear dormer extension, two rear-facing windows and x3 front rooflights

  27 May 2026 Lawful development