40 Belgrave Avenue Watford WD18 7UE

1. 24 Jan 2020

   Received by Watford

2. 19 Mar 2020

   Decision issued: Grant Lawful Development Certificate

3. 22 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

• 51 Euston Avenue Watford WD18 7SZ

  18/01497/COU Submitted 22 Nov 2018 38m away

  Change of use from a 6 bedroom house of multiple occupation for 6 persons (Class C4) to a 7 bedroom house of multiple occupation for 7 persons (Sui Generis) (amended description)

  Decided Full applications 12 docs

• 61 Euston Avenue Watford Hertfordshire WD18 7SZ

  24/00645/FUL Submitted 8 Jul 2024 48m away

  Change of use from C3 dwelling house to C2 children's residential home

  Decided Full applications 11 docs
  Domestic

• 71 Euston Avenue Watford Hertfordshire WD18 7SZ

  24/00692/LDC Submitted 19 Jul 2024 69m away

  Lawful development certificate for proposed ground floor single storey rear extension

  Granted Lawful development Extension 5 docs
  Small domestic

• 14 Euston Avenue Watford Hertfordshire WD18 7SY

  22/00266/FULH Submitted 25 Feb 2022 73m away

  Erection of single storey rear extension

  Decided Householder Extension 5 docs
  Small domestic

• 120 Hagden Lane Watford Hertfordshire WD18 7UH

  22/01326/FULH Submitted 15 Nov 2022 79m away

  Erection of a single storey side and rear extension.

  Decided Householder Extension 5 docs
  Small domestic

• 138 Hagden Lane Watford WD18 7UH

  20/00609/FULH Submitted 17 Jun 2020 81m away

  Dropped kerb and create driveway in front of the property. Remove front garden wall within property land. The proposed area is 4.8m long, 4.2m wide. Layout proposed driveway with paving bricks.

  Refused Householder 6 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