3 Grove Avenue Harpenden Hertfordshire Al5 1Eu

1. 7 Jan 2026

   Received by St Albans

2. 8 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Apr 2026

   Decision issued: DC3 Conditional Permission

4. 7 Sep 2026

   Added to PlanIndex

St Albans has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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.

• 23 Grove Avenue Harpenden Hertfordshire Al5 1Eu

  5/2017/2661 Submitted 20 Sep 2017 0m away

  Demolition of existing bungalow and construction of two, three bedroom semi-detached dwelling (resubmission following withdrawal of 5/2017/1878) - Additional Daylight and Sunlight Report Submitted

  Refused New dwelling Demolition 34 docs
  Domestic

• The Grove Infants & Nursery School Dark Lane Harpenden Hertfordshire Al5 1Qd

  5/2017/2553 Submitted 6 Sep 2017 84m away

  Construction of timber outbuilding

  Decided 10 docs

• 28 Pipers Avenue Harpenden Hertfordshire Al5 1Hb

  5/2026/0228 Submitted 9 Feb 2026 98m away

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

  Decided Householder Extension Loft or dormer +1 8 docs
  Small domestic

• 28 Pipers Avenue Harpenden Hertfordshire Al5 1Hb

  5/2026/1273 Submitted 1 Jul 2026 98m away

  First Floor Rear Extension ontop of single storey extension approved under Planning Permission 5/2026/0228.

  Decided Householder Extension 3 docs
  Small domestic

• 3A Pipers Avenue Harpenden Hertfordshire Al5 1Hb

  5/2026/0824 Submitted 23 Apr 2026 98m away

  Single storey rear extension

  Decided Householder Extension 9 docs
  Small domestic

• 101 Grove Road Harpenden Hertfordshire Al5 1Er

  5/2026/0926 Submitted 12 May 2026 202m away

  Part two storey front and rear extension, part single storey rear extension and insertion of rear dormer window.

  Decided Householder Extension Loft or dormer +1 12 docs
  Small domestic

• 5/2026/1173 Decided

  6 Longacres St Albans Hertfordshire Al4 0Dr

  Demolition of existing outbuilding and construction of single storey rear extension

  18 Jun 2026 Householder
• 5/2026/0299 Decided

  12 Rowlatt Drive St Albans Hertfordshire Al3 4Nb

  Demolition of existing side and rear extension and construction of a canopy porch, part single, part two storey front, two storey side and single storey rear extension

  17 Feb 2026 Householder
• 5/2026/0318 Refused

  7 Ardens Way St Albans Hertfordshire Al4 9Uw

  Demolition of existing side canopy, detached garage, rear patio and garden shed and the construction of two storey front, side and rear extensions, together with part single storey rear extension and a front porch canopy and extension to driveway

  19 Feb 2026 Householder
• 5/2026/1139 Decided

  50 Fontmell Close St Albans Hertfordshire Al3 5Hu

  Single storey rear extension and side windows with top openers over 1.7m high

  10 Jun 2026 Householder
• 5/2026/0525 Decided

  11 Hillside Road Harpenden Hertfordshire Al5 4Bs

  Garage conversion, with part roof extension and new front porch extension

  17 Mar 2026 Householder