1 Trefusis Walk Watford WD17 3BP

1. 3 Jun 2024

   Received by Watford

2. 4 Jun 2024

   Validated

   Checked as complete and ready for consideration.

3. 17 Jul 2024

   Decision issued: Grant Lawful Development Certificate

4. 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

• 10 Bellmount Wood Avenue Watford Hertfordshire WD17 3BW

  26/00509/FULH Submitted 3 Jul 2026 51m away

  0% historically approved · decision due ~2 Oct

  Demolition of existing conservatory, erection of single storey ground floor side and rear extension, first floor side and rear extension, mono pitch roof over existing garage, new front elevation front porch, re landscaping of front garden to include new drive with associated retaining walls and steps and a new patio to the rear garden

  Awaiting decision Householder Extension Demolition 9 docs
  Small domestic

• 74 Langley Way Watford WD17 3FB

  26/00155/FULH Submitted 26 Feb 2026 55m away

  Erection of 2 storey side extension and a porch with changes to fenstration on first floor facing Langley Road

  Refused Householder Extension 14 docs
  Small domestic

• 11 Trefusis Walk Watford WD17 3BP

  18/01620/FULH Submitted 21 Dec 2018 57m away

  Demolition of existing garage, erection of single storey side and rear extensions, first floor rear extension including juliette balconies, new windows to front elevation and raised patio to rear

  Decided Householder Extension Demolition +1 4 docs
  Small domestic

• 11 Trefusis Walk Watford WD17 3BP

  18/01023/FULH Submitted 13 Aug 2018 57m away

  Demolition of existing garage. Proposed single storey side and rear extensions, first floor rear extension including juliette balconies, new windows to front elevation and new canopy at front door.

  Decided Householder Extension Demolition +1 6 docs
  Small domestic

• 12 Bellmount Wood Avenue Watford WD17 3BW

  19/01333/FULH Submitted 19 Nov 2019 67m away

  Proposed garage extension with conversion into habitable accommodation

  Decided Householder Extension 7 docs
  Domestic

• 75 Langley Way Watford WD17 3EB

  24/00551/FULH Submitted 10 Jun 2024 80m away

  Retrospective - 2m high fence adjacent to the highway, a 1.6m high metal automatic sliding gate across a driveway adjacent to the highway, a garden fence withing the property 2.5m high and a rear fence on the property boundary of 2m reducing down to 1.6m

  Decided Householder 10 docs
  Small 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