4 Lyndhurst Drive Harpenden Hertfordshire Al5 5Qn

1. 20 Jul 2026

   Received by St Albans

2. 19 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Aug 2026

   Added to PlanIndex

4. 4 Oct 2026

   Status changed to Under Consideration

   Previously Under Consultation.

5. Decision

   Awaiting decision

   Decision expected by 14 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   St Albans took a median of 76 days over the applications it decided in the last year.

This application is with St Albans for determination, against a statutory target of eight weeks. Over the last year St Albans decided householder applications in a median of 110 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.

• 61 Station Road Harpenden Hertfordshire Al5 4Xf

  5/2017/3005 Submitted 23 Oct 2017 100 yards away

  Non Material Amendment - To show the fence in its current position, approximately 400mm from the back edge of the retaining wall to planning permission 5/2017/0430 dated 07/04/2017 for Replacement of boundary fence, new retaining wall and associated lands

  Granted Amendments 6 docs
  Small domestic

• 75 Station Road Harpenden Hertfordshire Al5 4Rl

  5/2026/1684 Submitted 14 Sep 2026 150 yards away

  89% historically approved · decision due ~10 Nov

  Erection of a single-storey detached garden room to the rear of the garden, for incidental use as a hobby room

  Awaiting decision Householder 9 docs
  Small domestic

• 77 Station Road Harpenden Hertfordshire Al5 4Rl

  5/2017/2555 Submitted 6 Sep 2017 150 yards away

  Dropped kerb, alterations to access and hardstanding with front and side retaining walls in the front garden

  Granted Householder 15 docs
  Small domestic

• 20 Dalkeith Road Harpenden Hertfordshire Al5 5Pw

  5/2016/2957 Submitted 29 Sep 2016 200 yards away

  Part single part two storey rear extension with new canopy and decking, two storey side extension, loft conversion with rear dormer and addition of front and side facing rooflights

  Granted Householder Extension Loft or dormer 10 docs
  Domestic

• 21 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

  5/2025/2166 Submitted 26 Nov 2025 250 yards away

  First floor rear extension with roof lights and juliet balcony, alterations to existing rear single storey projection and alterations to roof with new roof lights

  Granted Householder Extension Loft or dormer +1 11 docs
  Small domestic

• 7 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

  5/2025/2257 Submitted 10 Dec 2025 250 yards away

  Two storey side and rear extension, single storey side and rear extension, front porch, alterations to openings

  Granted Householder Extension 12 docs
  Small domestic

• 5/2026/0517 Granted

  28 White Hedge Drive St Albans Hertfordshire Al3 5Tt

  Proposed two-storey rear extension, loft conversion, and alterations to the existing front entrance porch

  Received 16 Mar, published by the council 31 Aug 2026 Householder
• 5/2026/1055 Granted

  39 Oakwood Drive St Albans Hertfordshire Al4 0Ul

  Erection of a part single-storey, part two-storey wraparound extension, loft conversion including a rear dormer and rooflights, and construction of a front porch

  Received 1 Jun, published by the council 24 Jul 2026 Householder
• 5/2026/1278 Granted

  39 Foxcroft St Albans Hertfordshire Al1 5Ss

  Proposed C3 residential extension including two storey front and single storey front and side with internal alterations

  Received 1 Jul, published by the council 24 Jul 2026 Householder
• 5/2026/1170 Granted

  20 Nimrod Close St Albans Hertfordshire Al4 9Xy

  Extension of existing raised rear terrace with privacy screening and associated alterations to rear fenestration

  Received 17 Jun, published by the council 24 Jul 2026 Householder
• 5/2026/1338 Granted

  16 Hunters Ride Bricket Wood Hertfordshire Al2 3Lx

  Proposed front porch

  Received 11 Jul, published by the council 9 Aug 2026 Householder