171 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3ED

1. 14 May 2025

   Received by Three Rivers

2. 16 May 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Jul 2025

   Decision issued: approved

4. 19 Aug 2026

   Added to PlanIndex

Three Rivers granted permission on 10 July 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 167 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3ED

  25/1144/PDE Submitted 4 Jul 2025 24m away

  Prior Approval: Single storey rear extension (depth 8.00 metres, maximum height 3.52 metres, maximum eaves height 2.52 metres)

  Refused Outline Extension 10 docs
  Small domestic

• 167 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3ED

  25/1917/FUL Submitted 5 Nov 2025 27m away

  Construction of part-single, part-two storey rear extension, conversion of garage into habitable accommodation

  Granted Full applications Extension 15 docs

• 183 Watford Road Croxley Green WD3 3ED

  21/2866/FUL Submitted 17 Dec 2021 43m away

  Single storey rear extension to ground floor maisonette

  Granted Full applications Extension 15 docs
  Small domestic

• 185-187 Croxley Green Service Station Watford Road Croxley Green WD3 3ED

  20/2279/DIS Submitted 28 Oct 2020 72m away

  Discharge of Condition 2 (Noise Assessment) pursuant to planning permission 20/1028/RSP

  Decided Conditions 4 docs

• 75 Winton Drive Croxley Green Hertfordshire WD3 3RB

  22/1870/CLPD Submitted 7 Oct 2022 77m away

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable extension with rear dormer, containing rooflight, and front rooflights; erection of solar panels and new window to the side elevation

  Granted Lawful development Extension Loft or dormer +1 5 docs

• 282 Watford Road Croxley Green WD3 3DE

  20/1883/FUL Submitted 11 Sep 2020 82m away

  Construction of two storey side and rear extension, front porch, loft conversion including front and rear rooflight and alterations to raised patio

  Withdrawn Full applications Extension Loft or dormer 21 docs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