Fern Hill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

1. 6 Jun 2024

   Received by Three Rivers

2. 7 Jun 2024

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2024

   Decision issued: approved

4. 1 Sep 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

• Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

  25/1701/TPO Submitted 2 Oct 2025 13m away

  T2 Beech, decay in mainstem, poor form - remove T3 Beech, large cavity in base, declining - remove T4 Spruce, in canopy of larger adjacent Oak, little future potential - remove T5 Scots Pine, canopy thinning, close to road and overhead lines - remove T8 Silver Birch, poor form - remove T 9 Silver Birch, reduce overextended lateral limb by 2-3 metres, to reduce shading on young Ginko planted adjacent T12 Oak, canopy retrenching with large diameter deadwood, reduce canopy to points on picture, to maintain tree as a monolith with retrenched canopy T14 Ash, advanced ADB, remove T23, 24 and 25 - Small Pines, planted by pond - Reduce by 1 metre vertically and 0.5 laterally, including thinning, to maintain trees as a small size, whilst keeping aesthetics T26 Spruce - Poor location for tree near pond - remove T27 Prunus - Remove

  Granted Trees 16 docs

• Fern Hill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

  24/0189/TCA Submitted 7 Feb 2024 13m away

  Front Garden (all tree numbers provided are for purpose of site map only) T1 Conifer - Fell to ground level In Decline Rear Garden T2 Row of Oaks - Lift over neighbours lawn by 3m approx so the grass can be cut and a bait a nuisance T3 Small Leaning Oak (45 degree angle over neighbours lawn) - Fell to ground level Grown under the shadow of the Row of Oaks, leaning in to fence line To a bait a nuisance to the neighbour T4 Sycamore - Reduce overly long limb by 5m approx. and remove deadwood To bring in line with the remainder of the trees

  Granted Trees 7 docs
  Small domestic

• Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

  23/2147/TCA Submitted 18 Dec 2023 13m away

  T1 - Holly - Remove to ground level Tree is suffocated by ivy. Ivy severing was stopped as there was potential structural support from the ivy. Tree is on roadside and in contact with fibre optics. Low amenity and potential to fall on road. T2 - Oak - Remove to ground level Tree is stag heading due to poor location (area which regularly floods) which is impacting the roots. Tree is in falling distance to neighbours outhouse. Branches dropping/failing in the past.

  Granted Trees 6 docs

• Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

  26/0931/TCA Submitted 8 Jun 2026 13m away

  81% historically approved · decision due ~3 Aug

  T23-25 - 3 x Pine - remove

  Awaiting decision Trees

• Athelstan Long Lane Heronsgate Hertfordshire WD3 5BT

  22/0681/CLPD Submitted 11 Apr 2022 16m away

  Certificate of Lawfulness Proposed Development : Installation of Solar Panels

  Granted Lawful development 10 docs

• White Lodge Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

  23/2046/FUL Submitted 30 Nov 2023 67m away

  Construction of single storey extension to existing garage with associated landscaping works

  Granted Full applications Extension 12 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