54 Hillingdon Road Watford Hertfordshire WD25 0JE

1. 12 Sep 2023

   Received by Watford

2. 31 Oct 2023

   Decision issued: Grant Lawful Development Certificate

3. 9 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

• 52 Hillingdon Road Watford Hertfordshire WD25 0JE

  19/01362/HPD Submitted 25 Nov 2019 9m away

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6.0m for which the maximum height would be 3.6m and for which the height of the eaves would be 2.8m

  Refused Prior approval Extension 4 docs
  Small domestic

• 51 Meadow Road Watford WD25 0JB

  21/00613/FULH Submitted 23 Apr 2021 37m away

  Erection of single storey rear/side extension

  Decided Householder Extension 5 docs
  Small domestic

• 51 Meadow Road Watford WD25 0JB

  21/00412/LDC Submitted 22 Mar 2021 38m away

  Lawful development certificate for proposed hip to gable loft conversion with rear dormer, x 2 roof lights and a side facing window

  Granted Lawful development Loft or dormer Windows or glazing 6 docs

• 45 Meadow Road Watford WD25 0JB

  25/00125/LDC Submitted 14 Feb 2025 47m away

  Lawful Development Certificate for alteration of roof from hip to gable end; rear dormer and installation of rooflights to front roofslope to create habitable roofspace.

  Granted Lawful development Loft or dormer 7 docs

• 47 Hillingdon Road Watford Hertfordshire WD25 0JF

  25/00551/LDC Submitted 11 Jun 2025 56m away

  Lawful development certificate for proposed hip to gable loft conversion including rear dormer

  Granted Lawful development Loft or dormer 7 docs

• 22 Greenwood Drive Watford Hertfordshire WD25 0HT

  24/00151/FULH Submitted 22 Feb 2024 57m away

  Erection of part single part two storey side and rear extension with associated internal alterations.

  Decided Householder Extension 19 docs
  Domestic

• 26/00700/LDC Awaiting decision

  13 Orchard Close Watford WD17 3DU

  Lawful Development Certificate for a hip to gable loft conversion with three skylights on the front slope.

  3 Sep 2026 Lawful development
• 26/00494/LDC Refused

  204A St Albans Road Watford WD24 4AS

  Lawful development certificate for existing use of the first and second floors as two separate self-contained residential dwellings (Use Class C3), each comprising independent living accommodation, kitchen facilities, bathroom facilities and ancillary storage, with access provided via the existing external rear staircase

  29 Jun 2026 Lawful development
• 26/00531/LDC Granted

  1014 St Albans Road Watford WD25 9NP

  Lawful development certificate for proposed hip to gable roof extension and loft conversion

  10 Jul 2026 Lawful development
• 26/00549/LDC Granted

  4 Field Road Watford WD19 4DR

  Lawful Development Certificate to replace single storey rear extension.

  17 Jul 2026 Lawful development
• 26/00659/LDC Awaiting decision

  38 Talbot Avenue Watford WD19 4AX

  Lawful development certificate for proposed demolition of existing rear extension and erection of single storey rear extension

  20 Aug 2026 Lawful development