11 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DL

1. 13 May 2025

   Received by Three Rivers

2. 16 Jun 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

• The Old House 3 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DL

  26/0762/TCA Submitted 12 May 2026 10m away

  G1-Mixed species group-Lift crowns to 5 metres from road, cut back to behind kerb, and cut away from phone lines all to maintain size and shape for the location.

  Granted Trees 4 docs

• 24 Watford Road Croxley Green WD3 3BJ

  21/2923/CLPD Submitted 24 Dec 2021 45m away

  Certificate of Lawfulness Proposed Development: Loft conversion with rear dormer and two rooflights to the front

  Granted Lawful development Loft or dormer 4 docs

• 30 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3BJ

  22/1115/CLPD Submitted 10 Jun 2022 67m away

  22/1115/CLPDCertificate of Lawfulness Proposed Development: Hip to gable loft conversion including rear dormer and front rooflight.

  Granted Lawful development Loft or dormer 10 docs

• 30 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3BJ

  22/1636/FUL Submitted 25 Aug 2022 68m away

  Single storey rear extension.

  Granted Full applications Extension 12 docs
  Small domestic

• South Cottage 37 Yorke Road Croxley Green Rickmansworth Hertfordshire WD3 3DW

  25/1723/FUL Submitted 7 Oct 2025 72m away

  Demolition of existing garage and conservatory and construction of single storey rear extension and new roof over the existing first floor rear projection; sub-division of plot and construction of two storey semi-detached self build dwelling with associated access, parking and landscaping works

  Granted Full applications New dwelling Extension +2 16 docs
  Small domestic

• 32 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3BJ

  24/0631/FUL Submitted 17 Apr 2024 73m away

  Demolition of exiting utility and front porch, front porch, single storey rear extension, extension to raised patio area including privacy screens.

  Granted Full applications Extension Demolition 11 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