21 Letchmore Road Radlett Hertfordshire WD7 8HU

This site has had 2 applications since 2021: 1 approved, 1 refused.

• 21/0297/HSE Granted

  21 Letchmore Road Radlett Hertfordshire WD7 8HU

  Part single, part two storey rear extension, conversion of garage to habitable room and alterations to the roof to include raising the ridge height, conversion of loft to habitable room with juliette balcony and 2 rear dormers. (Amended Description 12/05/2021)

  Decided 14 Jun 2021 Householder

1. 14 Dec 2022

   Received by Hertsmere

2. 16 Dec 2022

   Validated

   Checked as complete and ready for consideration.

3. 31 Jan 2023

   Decision issued: Refuse Permission

4. 9 Aug 2026

   Added to PlanIndex

Hertsmere refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 21 Letchmore Road Radlett Hertfordshire WD7 8HU

  21/0297/HSE Submitted 11 Feb 2021 50 yards away

  Part single, part two storey rear extension, conversion of garage to habitable room and alterations to the roof to include raising the ridge height, conversion of loft to habitable room with juliette balcony and 2 rear dormers. (Amended Description 12/05/2021)

  Granted Householder Extension Loft or dormer +1 14 docs
  Domestic

• The Gate House 27A Letchmore Road Radlett Hertfordshire WD7 8HU

  26/0206/HSE Submitted 18 Feb 2026 50 yards away

  First floor rear and side extension with associated roof works to include extension to habitable space at loft level, insertion of additional rear dormer window, and insertion of 3x roof lights. (AMENDED PLANS RECEIVED: 06/03/2026 - skylight to master bedroom on second floor omitted). (ADDITIONAL INFORMATION RECEIVED: 07/05/2026 - daylight & sunlight assessment).

  Granted Householder Extension Loft or dormer +1 9 docs
  Domestic

• 26 Letchmore Road Radlett Hertfordshire WD7 8HT

  23/0374/CLP Submitted 7 Mar 2023 100 yards away

  Outbuilding in rear garden. Certificate of Lawful Development (Proposed).

  Granted Lawful development 5 docs

• 24A Letchmore Road Radlett WD7 8HT

  TP/11/0044 Submitted 7 Jan 2011 100 yards away

  Two storey rear extension (Certificate of Lawful Development - Proposed).

  Granted Lawful development Extension 13 docs

• 26 Aldenham Avenue Radlett Hertfordshire WD7 8HX

  26/1374/HSE Submitted 23 Sep 2026 100 yards away

  92% historically approved · decision due ~18 Nov

  Proposed single storey rear extension.

  Awaiting decision Householder Extension
  Small domestic

• 9 Letchmore Road Radlett Hertfordshire WD7 8HU

  26/0397/HSE Submitted 25 Mar 2026 150 yards away

  Conversion of garage to habitable space including removal of garage door with replacement window.

  Granted Householder Windows or glazing 8 docs
  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