Planning application
13 Watling Knoll Radlett Hertfordshire WD7 7HW
Works: Extension Demolition Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
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.
As published by the council, reference 25/1746/HSE
Application record
- Reference
- 25/1746/HSE
- Type
- Householder Application
- Status
- Decided
- Decision
- Grant Permission
- Received
- 8 Dec 2025
- Validated
- 8 Dec 2025
- Decided
- 14 May 2026
- Ward
- Aldenham West
- Parish
- Aldenham Parish
- Decision by
- Delegated Decision
- Postcode
- WD7 7HW
Timeline
Dates from the published record
-
8 Dec 2025
Received by Hertsmere
-
14 May 2026
Decision issued: Grant Permission
-
9 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
12 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat a grant of permission means
The process from here
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.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
-
9 Watling Knoll Radlett Hertfordshire WD7 7HW
Part single, part two storey side and rear extension and porch extension to front.
Granted Householder Extension 12 docsSmall domestic -
7 Watling Knoll Radlett Hertfordshire WD7 7HW
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 9 docs -
24 The Close Radlett Hertfordshire WD7 8HA
74% historically approved · decision due ~12 Oct
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.
Awaiting decision Trees 7 docs -
5 Watling Knoll Radlett Hertfordshire WD7 7HW
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 docsDomestic -
Brydon The Close Radlett Hertfordshire WD7 8HA
Erection of timber framed summer house to rear garden.
Granted Householder 10 docsDomestic -
4 Watling Knoll Radlett Hertfordshire WD7 7HW
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 docsSmall domestic
Other householder applications
In Hertsmere
-
26/1255/HSE Awaiting decision
33 Coldharbour Lane Bushey Hertfordshire WD23 4NU
Demolition of rear conservatory and existing two storey side extension; construction of part single, part two storey side and rear extension and two storey front extension with relocation of front entrance; conversion of loft to habitable space with associated hip to gable roof extensions, rear dormer with 2x Juliette balconies and insertion of 2x front and 4x side rooflights; 3x rear Juliette balconies at first floor level, alterations to side bay extension, alterations to fenestration and removal of 2x chimney stacks.
-
26/1253/HSE Awaiting decision
159 Arundel Drive Borehamwood Hertfordshire WD6 2LZ
Construction of single storey rear extension with pitched roof and 3x rooflights, and alterations to fenestration.
-
26/1250/HSE Awaiting decision
3 The Walk Potters Bar Hertfordshire EN6 1QL
Single storey side extension following demolition of existing detached garage and shed.
-
26/1248/HSE Awaiting decision
24 Farm Way Bushey Hertfordshire WD23 3SS
Single storey rear extension; single storey front extension to include porch, conversion of garage to habitable space and replacement of garage door with window; first floor side extension.
-
26/1241/HSE Awaiting decision
145 Mutton Lane Potters Bar Hertfordshire EN6 2HD
Single storey side and rear extension.