26 Aldenham Avenue Radlett Hertfordshire WD7 8HX

1. 23 Sep 2026

   Received by Hertsmere

2. 30 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 18 November 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.

• 9 Letchmore Road Radlett Hertfordshire WD7 8HU

  26/0397/HSE Submitted 25 Mar 2026 50 yards away

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

  Granted Householder Windows or glazing 8 docs
  Domestic

• 25 Aldenham Avenue Radlett Hertfordshire WD7 8HZ

  20/2052/HSE Submitted 10 Dec 2020 100 yards away

  Alterations to dwelling comprising of porch extension, driveway, single and two storey rear extension and loft conversion (retrospective application) AMENDED PLANS & DESCRIPTION

  Granted Householder Extension Loft or dormer 14 docs
  Small domestic

• 29 Aldenham Avenue Radlett WD7 8HZ

  TP/10/1758 Submitted 6 Sep 2010 100 yards away

  Demolition of existing detached house and detached garage and erection of 2 No. detached dwellings, 1 No. 6 bedroom house with basement accommodation and 1 No. 5 bedroom house.(Amended plans received 9/11/10)

  Granted Full applications New dwelling Demolition 55 docs

• 35 Aldenham Avenue Radlett Hertfordshire WD7 8HZ

  21/1479/HSE Submitted 16 Jul 2021 100 yards away

  Demolition of existing detached double garage. Construction of two storey rear extension and alterations to fenestration.

  Granted Householder Extension Demolition +1 16 docs
  Domestic

• 21 Letchmore Road Radlett Hertfordshire WD7 8HU

  21/0297/HSE Submitted 11 Feb 2021 100 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

• 21 Letchmore Road Radlett Hertfordshire WD7 8HU

  22/2085/HSE Submitted 14 Dec 2022 100 yards away

  Installation of air conditioning plant on roof. (Retrospective application)

  Refused Householder 8 docs
  Domestic

• 26/1234/HSE Granted

  66 Park Crescent Elstree Borehamwood Hertfordshire WD6 3PU

  Construction of swimming pool with associated hard landscaping.

  Received 26 Aug, published by the council 3 Sep 2026 Householder
• 26/1227/HSE Granted

  22 Pinewood Close Borehamwood Hertfordshire WD6 5NW

  Construction of part single, part two-storey rear extension, two-storey side extension including conversion of existing attached garage to habitable space, and alterations to fenestration.

  Received 26 Aug, published by the council 2 Sep 2026 Householder
• 26/1500/HSE Awaiting decision

  10 Oakridge Avenue Radlett Hertfordshire WD7 8EP

  Demolition of existing rear conservatory and erection of part single part two storey rear extension with alterations to fenestration.

  Received 19 Oct, published by the council 21 Oct 2026 Householder
• 26/1029/HSE Granted

  5 Elmroyd Avenue Potters Bar Hertfordshire EN6 2ED

  Installation of 8x solar panels.

  Received 23 Jul, published by the council 28 Aug 2026 Householder
• 26/1235/HSE Granted

  14 Neville Close Potters Bar Hertfordshire EN6 2AG

  Construction of single storey front, side and rear extension and alterations to fenestration.

  Received 26 Aug, published by the council 4 Sep 2026 Householder