25/00729/LDC

1. 6 Aug 2025

   Received by Watford

2. 8 Aug 2025

   Validated

   Checked as complete and ready for consideration.

3. 1 Oct 2025

   Decision issued: Grant Lawful Development Certificate

4. 26 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

• 25/00328/LDC Refused

  256 Whippendell Road Watford WD18 7NL

  Lawful Development Certificate for existing HMO up to six persons

  1 Apr 2025 0m away Lawful development
• 26/00443/FULH Awaiting decision

  71 Princes Avenue Watford WD18 7RR

  Erection of single story side and rear extension, conversion of loft into habitable space including rear dormer and x2 front roof lights and x1 side dormer window

  11 Jun 2026 44m away Householder
• 23/00046/LDC Granted

  236 Whippendell Road Watford Hertfordshire WD18 7NL

  Lawful Development Certificate for: Change of Use from a Dwelling House (C3) to a Six Bedroom House in Multiple Occupation (C4) Creation of two dormers on the rear elevation, alterations to windows and doors at ground floor rear and the installation of two front rooflights

  20 Jan 2023 49m away Lawful development
• 20/00645/FULH Decided

  97 Princes Avenue Watford WD18 7RR

  Erection of a single storey rear and side extension and associated internal alterations.

  24 Jun 2020 52m away Householder
• 25/00827/FUL Refused

  Rear Of 291 Whippendell Road Watford WD18 7NN

  Change of Use of rear part of ground floor from commercial (Class E) to a residential studio flat (Class C3) with internal reconfiguration.

  10 Sep 2025 76m away Full applications
• 26/00431/FUL Awaiting decision

  1 - 3 Euston Avenue Watford Hertfordshire WD18 7SZ

  Change of use of from Single Maisonette with internal alterations to provide 2 x 1 Bedroom residential units (Class C3) with associated bin and bike stores

  9 Jun 2026 95m away Full applications

• 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