The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY

1. 24 Aug 2026

   Received by Hertsmere

2. 1 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 27 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.

• Barn Cottage Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY

  26/1332/HSE Submitted 14 Sep 2026 50 yards away

  92% historically approved · decision due ~9 Nov

  Erection of 2x pergolas within side and rear amenity space and insertion of 1x conservation rooflight to existing entrance porch roof.

  Awaiting decision Householder Extension Loft or dormer
  Small domestic

• The Old Post Office Grange Lane Letchmore Heath Watford WD25 8DY

  TP/06/0118 Submitted 1 Feb 2006 50 yards away

  Conversion of existing detached garage into part garage part habitable accommodation (Certificate of Lawfulness - Proposed).

  Refused Lawful development 6 docs

• Memorial Hall Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY

  24/1297/DOC Submitted 8 Oct 2024 50 yards away

  Application for approval of details reserved by condition 03 (details of proposed new windows) of planning permission reference 24/0041/FUL.

  Granted Conditions Windows or glazing 3 docs

• The Farm House The Green Letchmore Heath Watford Hertfordshire WD25 8ES

  26/1220/CLP Submitted 24 Aug 2026 150 yards away

  82% historically approved · decision due ~19 Oct

  Removal of approximately 1.4m of private garden hedge and installation of an inward-opening pedestrian gate and posts, with a maximum overall height of 1.0 metre above existing ground level, wholly within the property boundary. Certificate of Lawful Development (Proposed).

  Awaiting decision Lawful development 8 docs

• 1 Letchmore Cottages Common Lane Letchmore Heath Watford WD25 8EE

  TP/06/0981 Submitted 3 Aug 2006 150 yards away

  *Electronic documents only, no paper file*Erection of rear conservatory.

  Granted Full applications Extension 9 docs

• Farm Cottage The Green Letchmore Heath Watford Hertfordshire WD25 8ES

  23/0368/DOC Submitted 7 Mar 2023 200 yards away

  Application for Approval of Details reserved by Condition 3 (External Construction Materials) of Planning Permission reference 22/1344/HSE.

  Granted Conditions 4 docs

• 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