61 Gills Hill Lane Radlett Hertfordshire WD7 8DG

This site has had 4 applications since 2026.

• 26/1462/PD42 Awaiting decision

  61 Gills Hill Lane Radlett Hertfordshire WD7 8DG

  Demolition of existing rear conservatory and construction of single storey rear extension. Depth: 4.00m, Height: 2.86m, Eaves: 2.62m.

  Submitted 12 Oct 2026
• 26/1091/PD42 Decided

  61 Gills Hill Lane Radlett Hertfordshire WD7 8DG

  Single storey rear extension. Depth: 4m, Height: 2.86m, Eaves: 2.62m.

  Decided 14 Sep 2026
• 26/1093/CLP Decided

  61 Gills Hill Lane Radlett Hertfordshire WD7 8DG

  Conversion of loft to habitable space with hip-to-gable roof alterations to include rear dormer and insertion of 4x front lights. Certificate of Lawful Development (Proposed).

  Decided 29 Sep 2026 Lawful development

1. 4 Aug 2026

   Received by Hertsmere

2. 17 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 18 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 12 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hertsmere took a median of 57 days over the applications it decided in the last year.

This application is with Hertsmere for determination, against a statutory target of eight weeks. Over the last year Hertsmere decided householder applications in a median of 65 days. More in our guide to how long planning decisions take.

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.

• 19 Cragg Avenue Radlett Hertfordshire WD7 8DW

  23/0049/HSE Submitted 11 Jan 2023 50 yards away

  Construction of single storey side and rear extension and front porch extension.

  Granted Householder Extension 12 docs
  Small domestic

• 73 Gills Hill Lane Radlett Hertfordshire WD7 8PD

  24/1347/CLP Submitted 17 Oct 2024 50 yards away

  Demolition of existing side garage followed by construction of single storey side and rear extensions, and front porch. Conversion of loft to habitable space with associated hip to gable roof alterations, rear dormer, insertion of 2x front rooflights and 2x windows to side elevation at loft level. Raised patio and alterations to side fences. Certificate of Lawful Development (Proposed).

  Granted Lawful development Extension Loft or dormer +3 25 docs
  Small domestic

• 73 Gills Hill Lane Radlett Hertfordshire WD7 8PD

  24/1346/HSE Submitted 17 Oct 2024 50 yards away

  Demolition of existing garage, WC and utility to facilitate construction of single storey front, side and rear wraparound extension with insertion of 1x rooflight to rear and new raised rear patio. Construction of new side access.

  Granted Householder Extension Loft or dormer +1 26 docs
  Small domestic

• 46 Gills Hill Lane Radlett Hertfordshire WD7 8DQ

  21/1538/CLP Submitted 26 Jul 2021 50 yards away

  Conversion of loft to habitable room with rear dormer and front rooflights. Certificate of lawfulness (Proposed).

  Granted Lawful development Loft or dormer 5 docs

• 48 Gills Hill Lane Radlett Hertfordshire WD7 8DQ

  24/1339/HSE Submitted 16 Oct 2024 50 yards away

  Partial demolition of existing rear extension roof and insertion of 2x rooflights with alterations to fenestration.

  Granted Householder Extension Loft or dormer +2 7 docs
  Domestic

• 17 Cragg Avenue Radlett Hertfordshire WD7 8DW

  19/1678/HSE Submitted 21 Oct 2019 50 yards away

  Construction of two storey side extension, part single part two storey rear extension, new front porch and conversion of loft to habitable room to include side and rear dormers and insertion of roof lights.

  Granted Householder Extension Loft or dormer 6 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