Highfields 46 Harthall Lane Kings Langley Hertfordshire WD4 8JH

1. 2 Aug 2023

   Received by Three Rivers

2. 9 Oct 2023

   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

• Highfields 46 Harthall Lane Kings Langley Hertfordshire WD4 8JH

  22/1752/PDE Submitted 20 Sep 2022 14m away

  Prior Approval: Single storey rear extension (depth 7.98 metres, maximum height 2.80 metres, maximum eaves height 2.57 metres)

  Withdrawn Outline Extension 8 docs
  Small domestic

• Highfields 46 Harthall Lane Kings Langley Hertfordshire WD4 8JH

  22/1753/PDT Submitted 20 Sep 2022 15m away

  Prior approval: Enlargement of the dwellinghouse by the construction of one additional storey (3.5m in height) and raising of ridge to result in an overall height of 9.62m (Class AA)

  Withdrawn Outline 7 docs
  Domestic

• Highfields 46 Harthall Lane Kings Langley Hertfordshire WD4 8JH

  22/0729/FUL Submitted 19 Apr 2022 20m away

  Single storey front, side and rear extensions with a sedum roof which forms into terraced garden; construction of a vestibule to the front and a garage conversion; two storey rear extension with side and front dormers and roof lights

  Withdrawn Full applications Extension Loft or dormer 23 docs
  Small domestic

• 50 Harthall Lane Kings Langley Hertfordshire WD4 8JH

  25/0297/FUL Submitted 18 Feb 2025 27m away

  Change of use of land to residential garden serving No.50 Harthall Lane

  Granted Full applications 8 docs

• Long Meadow 45 Harthall Lane Kings Langley WD4 8JW

  22/1165/FUL Submitted 17 Jun 2022 51m away

  Erection of detached double garage and extension to driveway

  Granted Full applications Extension 9 docs

• 50 Harthall Lane Kings Langley Hertfordshire WD4 8JH

  26/1285/FUL Submitted 11 Aug 2026 52m away

  90% historically approved · decision due ~6 Oct

  Variation of Condition 2 (In Accordance With Plans) pursuant to planning permission 25/0297/FUL to allow an increase in change of use area

  Awaiting decision Full applications

• 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