12 Westfield Avenue Harpenden Hertfordshire Al5 4Hn

1. 18 Dec 2025

   Received by St Albans

2. 19 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 26 Feb 2026

   Decision issued: DC4 Refusal

4. 27 Sep 2026

   Added to PlanIndex

This application is at appeal, which passes the decision from St Albans to the planning inspectorate, and the outcome will replace the council's decision. 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.

• 1 Ox Lane Harpenden Hertfordshire Al5 4Hh

  5/2025/0615 Submitted 28 Mar 2025 100 yards away

  Two storey front extension, part single and part two storey rear extension with roof lights, garage conversion (part retrospective), alterations to existing openings and installation of solar panels

  Granted Householder Extension Loft or dormer 12 docs
  Small domestic

• 12 Jameson Road Harpenden Hertfordshire Al5 4Hq

  5/2026/1665 Submitted 9 Sep 2026 150 yards away

  89% historically approved · decision due ~5 Nov

  Two and a half storey side extension, single storey front and rear extensions, internal alterations and demolition of existing double garage within rear garden

  Awaiting decision Householder Extension Demolition 13 docs
  Small domestic

• 2A Jameson Road Harpenden Hertfordshire Al5 4Hq

  5/2023/2477 Submitted 5 Dec 2023 150 yards away

  New rear dormer and installation of roof lights and solar panels, garage conversion, external insulated cladding to elevations and alterations to openings

  Granted Householder Loft or dormer 16 docs
  Small domestic

• 47 Westfield Road Harpenden Hertfordshire Al5 4Hr

  5/2026/1413 Submitted 24 Jul 2026 150 yards away

  Prior Notification - Single storey rear extension 3.7m in height x 3.04m in depth with 2.8m height to eaves

  Refused Prior approval Extension 8 docs
  Small domestic

• 17 Ox Lane Harpenden Hertfordshire Al5 4Hf

  5/2026/0586 Submitted 24 Mar 2026 200 yards away

  Erection of a single storey rear and side extensions, internal reconfiguration and demolition of existing detached garage and erection of a new detached garage

  Granted Householder Extension Demolition 23 docs
  Small domestic

• Clarendon Court Clarendon Road Harpenden Hertfordshire Al5 4Pt

  5/2026/0765 Submitted 15 Apr 2026 200 yards away

  88% historically approved · decision due ~6 Jul

  Replacement of current uPVC double-glazed casement windows, side-high windows and external patio doors in all flats and communal areas. Private balcony balustrades will be replaced with architectural perforated metal panels. Existing black metal balustr

  Awaiting decision New dwelling Windows or glazing 31 docs

• 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