24/0260/CLPD

1. 19 Feb 2024

   Received by Three Rivers

2. 22 Mar 2024

   Decision issued: approved

3. 2 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

• 23/1990/FUL Granted

  42 Thellusson Way Mill End Rickmansworth Hertfordshire WD3 8RQ

  Installation of Air Source Heat Pump to the front elevation

  23 Nov 2023 63m away Full applications
• 25/1385/FUL Granted

  12 Coombe Hill Road Mill End Rickmansworth Hertfordshire WD3 8ND

  Construction of side extension to lower ground level, replacement rear terrace, stairs and balustrading at ground floor level

  18 Aug 2025 71m away Full applications
• 26/1067/FUL Awaiting decision

  46 Thellusson Way Mill End Rickmansworth Hertfordshire WD3 8RQ

  Variation of condition 2 (Plans) pursuant to planning permission 24/1227/FUL to allow increase in height of the roof and changes to the fenestration.

  1 Jul 2026 75m away Full applications
• 22/0925/CLPD Granted

  48 Thompson Way Mill End Hertfordshire WD3 8GP

  Certificate of Lawfulness Proposed Development: Loft conversion including side dormer window and installation of new second floor rear facing window and alterations to fenestration detail including installation of new flank windows.

  17 May 2022 89m away Lawful development
• 22/0714/FUL Granted

  8 Coombe Hill Road Mill End Hertfordshire WD3 8ND

  Single storey rear extension, first floor extension and roof alterations including increase in ridge height and side dormer window, front entrance porch and front fenestration alterations

  14 Apr 2022 103m away Full applications
• 22/1161/PDE Granted

  8 Coombe Hill Road Mill End Rickmansworth Hertfordshire WD3 8ND

  Prior Approval: Single storey rear extension (depth 7 metres, maximum height 3.58 metres, maximum eaves height 2.90 metres)

  16 Jun 2022 104m away Outline

• 26/0842/CLPD Granted

  Dykewood Chorleywood Road Rickmansworth Hertfordshire WD3 4ES

  Certificate of Lawfulness Proposed Development: Installation of solar panels.

  26 May 2026 Lawful development
• 26/0952/CLPD Granted

  54 Station Road Kings Langley Hertfordshire WD4 8LB

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension; rear dormer, velux windows and construction of outbuilding to rear.

  11 Jun 2026 Lawful development
• 26/1165/CLPD Awaiting decision

  30 Gable Close Abbots Langley Hertfordshire WD5 0LD

  Certificate of Lawfulness Proposed Development: Loft conversion including rear dormer window and front rooflights

  20 Jul 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