39 Grove Avenue Harpenden Hertfordshire Al5 1Ey

1. 28 Aug 2026

   Received by St Albans

2. 1 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 17 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.

   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.

• 28 Sibley Avenue Harpenden Hertfordshire Al5 1Hf

  5/2026/0559 Submitted 20 Mar 2026 150 yards away

  First floor rear extension, raising of the roof height of the existing flat-roofed side extension, and construction of a new lean-to roof over the existing single-storey rear extension

  Granted Householder Extension 30 docs
  Small domestic

• 59 Sibley Avenue Harpenden Hertfordshire Al5 1Hf

  5/2026/0594 Submitted 25 Mar 2026 150 yards away

  Double storey front, side and rear extension and loft conversion including raising of ridge height. Crown roof with side and rear dormers. Alterations to openings

  Refused Householder Extension Loft or dormer +1 11 docs
  Domestic

• 25 High Firs Crescent Harpenden Hertfordshire Al5 1Nb

  5/2026/1089 Submitted 5 Jun 2026 200 yards away

  Removal of the existing flat roof and construction of a pitched roof to the front elevation

  Granted Householder 11 docs
  Domestic

• 5 High Firs Crescent Harpenden Hertfordshire Al5 1Nb

  5/2017/1783 Submitted 21 Jun 2017 200 yards away

  Single storey rear extension

  Granted Householder Extension 8 docs
  Small domestic

• 20 Pipers Avenue Harpenden Hertfordshire Al5 1Hb

  5/2016/3713 Submitted 12 Dec 2016 200 yards away

  Single storey rear extension with rooflights

  Granted Householder Extension Loft or dormer 9 docs
  Small domestic

• 28 Pipers Avenue Harpenden Hertfordshire Al5 1Hb

  5/2026/0228 Submitted 9 Feb 2026 200 yards away

  Single storey rear extension, loft conversion, external material changes to dwelling, porch window added to front elevation

  Granted Householder Extension Loft or dormer +1 8 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