49 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

1. 12 Nov 2025

   Received by Three Rivers

2. 16 Dec 2025

   Decision issued: approved

3. 19 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

• 45 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

  26/0721/PDE Submitted 5 May 2026 22m away

  Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 3.15 metres, maximum eaves height 3.00 metres)

  Withdrawn Outline Extension 7 docs
  Small domestic

• 45 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

  26/0736/CLPD Submitted 7 May 2026 28m away

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension with rear juliet dormer and window, front rooflights, side window

  Granted Lawful development Extension Loft or dormer +1 7 docs

• 78 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3BP

  23/1735/FUL Submitted 12 Oct 2023 56m away

  Demolition of existing garage and construction of single storey side and rear extension.

  Granted Full applications Extension Demolition 12 docs
  Small domestic

• 63 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

  25/1762/FUL Submitted 13 Oct 2025 72m away

  Removal of existing crossover and construction of new crossover

  Granted Full applications 10 docs

• 63 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

  26/0537/FUL Submitted 1 Apr 2026 73m away

  Construction of part single, part two storey front and side extension, single storey rear extension; installation of windows to side elevation

  Granted Full applications Extension Windows or glazing 12 docs
  Small domestic

• 49 Dickinson Square Croxley Green WD3 3EY

  21/0331/FUL Submitted 15 Feb 2021 74m away

  Single storey rear extension and erection of fencing to the rear

  Granted Full applications Extension 14 docs
  Small domestic

• 26/0460/CLED Granted

  Annexe Hart Hall Hyde Lane Nash Mills Hemel Hempstead Hertfordshire HP3 8SA

  Certificate of Lawfulness Existing Use: Use of annexe as an independent dwelling

  19 Mar 2026 Lawful development
• 26/0724/CLED Granted

  70 The Mead Carpenders Park Watford Hertfordshire WD19 5BU

  Certificate of Lawfulness Existing Use: Use of annexe as a separate dwelling

  5 May 2026 Lawful development
• 25/1151/CLED Refused

  Unit 6 Century Court Tolpits Lane Watford Hertfordshire

  Certificate of Lawfulness Existing Use: Use of property as single dwellinghouse (Use Class C3)

  4 Jul 2025 Lawful development
• 26/0736/CLPD Granted

  45 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension with rear juliet dormer and window, front rooflights, side window

  7 May 2026 Lawful development
• 26/0631/CLPD Granted

  Clovelly Bell Lane Bedmond Abbots Langley Hertfordshire WD5 0QS

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to dutch hip roof extension, rear juliet dormer with windows

  20 Apr 2026 Lawful development