19 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dn

1. 18 Sep 2025

   Received by St Albans

2. 14 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 28 Jan 2026

   Decision issued: DC3 Conditional Permission

4. 21 Aug 2026

   Added to PlanIndex

St Albans granted permission on 28 January 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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.

• 17 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dn

  TP/2026/0494 Submitted 28 Sep 2026 50 yards away

  98% historically approved · decision due ~24 Nov

  T2 Beech - Crown reduction by 2-3m approx (primary cuts) and thin canopy by 15-20% G1 Cypress - Fell T3 Silver Birch - Crown reduction by 2-3m approx (primary cuts)

  Awaiting decision Trees 5 docs

• 25 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dn

  TP/2026/0386 Submitted 7 Aug 2026 50 yards away

  Conifer (front garden) - Fell, this tree is now 55 foot high and is 20 feet in distance from the house (consent given historically to reduce by 30%)

  Granted Trees 7 docs

• 18 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dj

  TP/2021/0016 Submitted 12 Jan 2021 50 yards away

  Rear garden trees: 1 - Malus - Reduce in height by approximately 1m and bring sides into shape 2 - Norway Maple - Crown reduce to previous points to leave viable growth where possible. This would amount to a reduction of up to 4m.

  Granted Trees 4 docs

• 16 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dj

  5/2026/0467 Submitted 25 Feb 2026 50 yards away

  Single storey side extension

  Granted Householder Extension 10 docs
  Small domestic

• 16 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dj

  5/2026/1329 Submitted 6 Jul 2026 50 yards away

  89% historically approved · decision due ~1 Oct

  Two storey side and rear extensions, single storey rear and side extensions, new rear attic dormer, new air conditioning unit, relocation of vehicular crossover

  Awaiting decision Householder Extension Loft or dormer 18 docs
  Small domestic

• 54 Amenbury Lane Harpenden Hertfordshire Al5 2Dq

  5/2026/1009 Submitted 21 May 2026 100 yards away

  88% historically approved · decision due ~17 Jul

  Demolition of dwelling

  Awaiting decision Demolition 12 docs
  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