3 Sixth Avenue Watford WD25 9QA

1. 5 Jun 2023

   Received by Watford

2. 28 Jul 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

• 1 Sixth Avenue Watford Hertfordshire WD25 9QA

  22/00690/LDC Submitted 24 May 2022 7m away

  Lawful Development Certificate for loft conversion with gable end and rear dormer with rooflights to the front. Loft conversion under 50cm3

  Granted Lawful development Loft or dormer 13 docs

• 1 Sixth Avenue Watford WD25 9QA

  26/00340/HPD Submitted 1 May 2026 8m away

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6.00m for which the maximum height would be 3.00m and for which the height of the eaves would be 3.00m

  Granted Prior approval Extension 14 docs
  Small domestic

• 29 Sixth Avenue Watford Hertfordshire WD25 9QA

  21/00837/HPD Submitted 28 May 2021 41m away

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6.00m for which the maximum height would be 3.50m and for which the height of the eaves would be 2.50m

  Granted Prior approval Extension 4 docs
  Small domestic

• 27 Sixth Avenue Watford WD25 9QA

  21/00285/FULH Submitted 26 Feb 2021 44m away

  Erection of double storey side extension, single front/porch, and insertion of skylights into existing ground floor roof with raised ridge

  Refused Householder Extension 13 docs
  Small domestic

• 57 Kilby Close Watford Hertfordshire WD25 9FJ

  25/00601/FUL Submitted 25 Jun 2025 54m away

  Remove existing x1 rear window to create new opening to install new back door and new window to the side of door

  Decided Full applications Windows or glazing 10 docs

• Flat 1 22 Second Avenue Watford WD25 9PX

  26/00679/FUL Submitted 21 Aug 2026 71m away

  0% historically approved · decision due ~16 Oct

  Replacement door

  Awaiting decision Full applications 7 docs

• 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
• 26/00475/LDC Refused

  268 Hempstead Road Watford WD17 4LY

  Lawful development certificate for proposed hip to gable loft conversion to extend main ridge line and rear dormer

  23 Jun 2026 Lawful development