9 Watling Knoll Radlett Hertfordshire WD7 7HW

1. 5 May 2021

   Received by Hertsmere

2. 7 Jul 2021

   Decision issued: Grant Permission

3. 9 Aug 2026

   Added to PlanIndex

Hertsmere granted permission on 7 July 2021, 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 7 Watling Knoll Radlett Hertfordshire WD7 7HW

  24/0837/TPO Submitted 26 Jun 2024 50 yards away

  T8, T9, T10. 3no. BIRCH. Fell. T11 CHERRY. Deadwood all east facing branches (exempt). Remove west facing branch. All marked on annotated photographs.

  Granted Trees 7 docs

• 13 Watling Knoll Radlett Hertfordshire WD7 7HW

  25/1746/HSE Submitted 8 Dec 2025 50 yards away

  Demolition of existing conservatory to facilitate construction of part single, part two storey rear extension with associated roof works and two storey side extension with associated roof works. Construction of single storey front infill porch extension.

  Granted Householder Extension Demolition 12 docs
  Small domestic

• 5 Watling Knoll Radlett Hertfordshire WD7 7HW

  24/1530/DOC Submitted 26 Nov 2024 50 yards away

  Application for approval of details reserved by conditions 4 (Arboricultural method statement) of planning permission reference 24/1180/HSE.

  Granted Conditions 6 docs

• 5 Watling Knoll Radlett Hertfordshire WD7 7HW

  24/1180/HSE Submitted 16 Sep 2024 50 yards away

  Construction of part single, part two storey rear extension with associated roof alterations, alterations to fenestration and new hard landscaping to rear garden.

  Granted Householder Extension Roofing +1 11 docs
  Domestic

• 24 The Close Radlett Hertfordshire WD7 8HA

  26/1167/TPO Submitted 14 Aug 2026 50 yards away

  T1 - Mulberry Tree: This tree is growing to the south with the canopy extending over the garden area of 25 The Close by 4.5 m with an overall canopy spread to this aspect of approximately 6.5 m. The tree is causing a nuisance to 25 The Close as it prevents proper use of the garden area. This is through the physical presence of the canopy and dropped fruit which is making a footpath slippery and unsafe to use and staining the footpath surface. To help alleviate the nuisance it is proposed to reduce the canopy by 2.0-2.5 m by undertaking the following tree works to the southern aspect. Remove: - 1 x 25 mm diameter stem - 1 x 30 mm diameter stem - 1 x 40 mm diameter stem - 1 x 50 mm diameter stem - 1 x 175 mm diameter stem. This will leave a canopy spread to the southern aspect of approximately 4.0-4.5 m and 2.0-2.5 m over the garden area of 25 The Close. The footpath would then be outside the canopy spread of the tree. All works would be undertaken to BS 3998:2010 `Tree Work: Recommendations'. The tree would be left with a natural and flowing form.

  Granted Trees 7 docs

• 4 Watling Knoll Radlett Hertfordshire WD7 7HW

  26/0501/HSE Submitted 13 Apr 2026 50 yards away

  Conversion of garage to habitable space and single storey side extension with pitched roof over both, and insertion of 6x rooflights; alterations to fenestration.

  Granted Householder Extension Loft or dormer +1 7 docs
  Small domestic

• 26/0805/HSE Granted

  Rydal Mount Lodge Baker Street Potters Bar Hertfordshire EN6 2BP

  Demolition of existing conservatory to facilitate construction of single storey rear extension and front porch extension.

  Received 10 Jun, published by the council 24 Jul 2026 Householder
• 26/1218/HSE Refused

  22 The Grove Radlett Hertfordshire WD7 7NF

  Conversion of garage to habitable space with window to replace garage door and new pitched roof, construction of first floor side extension and part single, part two storey rear extension with insertion of 1x side rooflight, alterations to fenestration and front hard landscaping.

  Received 24 Aug, published by the council 1 Sep 2026 Householder
• 26/1253/HSE Granted

  159 Arundel Drive Borehamwood Hertfordshire WD6 2LZ

  Construction of single storey rear extension with pitched roof and 3x rooflights, and alterations to fenestration.

  Received 28 Aug, published by the council 4 Sep 2026 Householder
• 26/1250/HSE Granted

  3 The Walk Potters Bar Hertfordshire EN6 1QL

  Single storey side extension following demolition of existing detached garage and shed.

  Received 28 Aug, published by the council 4 Sep 2026 Householder
• 26/1075/HSE Granted

  7 Belmor Elstree Borehamwood Hertfordshire WD6 3JX

  Proposed boundary treatments to the rear of the property including replacement fence.

  Received 31 Jul, published by the council 12 Aug 2026 Householder