Aldenham School Aldenham Road Elstree Borehamwood Hertfordshire WD6 3AJ

1. 18 Aug 2026

   Received by Hertsmere

2. 21 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 13 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 65 days over the applications it decided in the last year.

This application is with Hertsmere for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.

More on heritage and listed buildings applications in our guide

• Aldenham School Aldenham Road Elstree Borehamwood Hertfordshire WD6 3AJ

  26/1193/FUL Submitted 18 Aug 2026 0m away

  84% historically approved · decision due ~13 Oct

  Alterations to building to remove the single storey spaces from around the auditorium and flytower, and replace them with two storey and double height spaces, new foyer with colonnaded entrance (including level access), new rooftop air-handling plant and photovoltaic array, installation of lift, surface water attenuation measures, together with associated hard and soft landscaping. (Associated listed building application 26/1194/LBC)

  Awaiting decision Full applications 29 docs
  Small domestic

• Wilson House Aldenham School Aldenham Road Elstree Hertfordshire

  19/1623/DOC Submitted 9 Oct 2019 245m away

  Application for approval of details reserved by condition 16 (construction management plan) of planning permission reference 18/2361/FUL.

  Decided Conditions 6 docs

• Aragon, Aragon Coach House, And Aragon Cottage Aldenham Road Letchmore Heath Watford Hertfordshire

  24/1225/FUL Submitted 24 Sep 2024 408m away

  84% historically approved · decision due ~21 Nov

  Demolition of existing dwelling (Aragon Cottage) and construction of replacement two storey dwelling. Reconfiguration of the residential plots at Aragon, Aragon Coach House and Aragon Cottage.

  Awaiting decision Full applications Demolition 34 docs
  Domestic

• 1 & 2 Sidney Cottages Aldenham Road Elstree Hertfordshire WD6 3AQ

  21/0652/FUL Submitted 25 Mar 2021 415m away

  Construction of single storey side and 2 storey rear extensions to No's 1 & 2 Sidney Cottages (revised application to 21/0139/HSE & 21/0140/HSE)

  Granted Full applications Extension 10 docs
  Small domestic

• Aragon Aldenham Road Letchmore Heath Watford WD25 8EW

  TP/11/0786 Submitted 4 May 2011 453m away

  Erection of front basement extension; Two storey side extension with basement extension; Three storey rear extension; Alteration to the roof, insertion of door into existing side extension and removal of ground floor window on north west elevation (amended plans received 08/06/2011 and 5/7/2011).

  Granted Householder Extension Windows or glazing 33 docs
  Domestic

• Heath House Aldenham Road Letchmore Heath Watford Hertfordshire WD25 8EW

  26/1072/TRC Submitted 31 Jul 2026 457m away

  84% historically approved · decision due ~7 Oct

  T1 - Norway Maple Height - 18m Average crown spread - 5m Proposed Works: Reduce the tree by 0.5m to leave final height of 17.5m and spread of 4.5m. All works undertaken in accordance with BS3998 guidelines. T2 - Norway Maple Height - 19m Average crown spread - 5m Proposed Works: Reduce the tree by 0.5m to leave a final height of 18.5m and a spread of 4.5m. All works undertaken in accordance with BS3998 guidelines. Reason for proposed works: T1 and T2 are located on the northern boundary, approximately 5m from the neighbouring property and are considered to be a contributing factor to the shading of windows. A crown reduction of up to 0.5, will provide a modest improvement in light penetration while retaining the principal framework of both crowns and minimising the wounding required.

  Awaiting decision Windows or glazing Trees 20 docs

• 26/0059/LBC Granted

  Nicoll Farm 34 Allum Lane Elstree Borehamwood Hertfordshire WD6 3NP

  Single storey rear extension to farmhouse and subdivision to create 1x3 bed and 1x 4 bed dwelling. Demolition of existing extensions to barn and conversion to 4x bed dwelling with alterations to fenestration. Erection of 2 4x bed semi detached dwellings. Erection of single storey 2x bed dwelling. Associated works and landscaping. (Application for Listed Building Consent with Associated 26/0060/FUL)

  19 Jan 2026 Heritage and listed buildings
• 26/0940/LBC Awaiting decision

  Flat 5 Wessex House Marlborough Drive Bushey Hertfordshire WD23 2RP

  Replacement of existing double glazed units in ensuite bathroom (Application for Listed Building Consent).

  9 Jul 2026 Heritage and listed buildings
• 26/0898/LBC Awaiting decision

  The White Hart St Albans Road South Mimms Potters Bar Hertfordshire EN6 3PJ

  Replacement of existing windows with bespoke timber windows and replacement of the northern perimeter wall (Application for Listed Building Consent) (AMENDED DESCRIPTION: 18/08/2026 - to include replacement of northern perimeter wall).

  29 Jun 2026 Heritage and listed buildings
• 26/0512/LBC Granted

  Flat 5 Wessex House Marlborough Drive Bushey Hertfordshire WD23 2RP

  Replacement of window glazing units. (Application for listed building consent)

  14 Apr 2026 Heritage and listed buildings
• 26/0833/LBC Awaiting decision

  Garden Cottage Summerhouse Lane Aldenham Watford Hertfordshire WD25 8DL

  Front boundary works to include new vehicular access, dropped kerb and vehicular hardstanding with associated gate / fencing, repair and extension to existing brick boundary wall and associated soft landscaping. (Associated application reference 26/0832/HSE.)

  16 Jun 2026 Heritage and listed buildings