21 Townsend Lane Harpenden Hertfordshire Al5 2Py

This site has had 2 applications since 2025: 1 approved, 0 refused.

• 5/2025/2368 Granted

  21 Townsend Lane Harpenden Hertfordshire Al5 2Py

  Installation of air source heat pump and air conditioning unit

  Decided 22 May 2026 Householder

1. 13 Jul 2026

   Received by St Albans

2. 14 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Aug 2026

   Added to PlanIndex

4. 26 Sep 2026

   Status changed to Under Consideration

   Previously Under Consultation.

5. Decision

   Awaiting decision

   Decision expected by 8 September 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.

• 5 Townsend Lane Harpenden Hertfordshire Al5 2Py

  TP/2026/0490 Submitted 28 Sep 2026 50 yards away

  98% historically approved · decision due ~24 Nov

  T1 Beech - Crown reduction by up to 2m approx, give 4m clearance from building and crown lift over the highway to the legal limit 5.2m

  Awaiting decision Trees 5 docs

• 1 Townsend Lane Harpenden Hertfordshire Al5 2Py

  5/2026/1376 Submitted 17 Jul 2026 50 yards away

  Two storey side/rear extensions, roof and internal alterations

  Withdrawn Extension 9 docs

• 15 Townsend Lane Harpenden Hertfordshire Al5 2Py

  5/2026/0841 Submitted 28 Apr 2026 50 yards away

  Discharge of Condition 6 (replacement tree planting) of planning permission 5/2023/2311 dated 20/05/2025 for Construction of five bedroom detached dwelling with integral garage and outbuilding to rear of garden following demolition of existing dwelling an

  Granted Conditions New dwelling Demolition 7 docs
  Small domestic

• 21 Townsend Lane Harpenden Hertfordshire Al5 2Py

  5/2025/2368 Submitted 11 Dec 2025 50 yards away

  Installation of air source heat pump and air conditioning unit

  Granted Householder 19 docs
  Domestic

• 4 Aplins Close Harpenden Al5 2Qd

  TP/2016/0567 Submitted 8 Dec 2016 50 yards away

  Fell Cypress tree in rear garden.

  Granted Trees 2 docs

• 4 Townsend Lane Harpenden Hertfordshire Al5 2Qe

  5/2026/1211 Submitted 23 Jun 2026 100 yards away

  Conversion of existing garage into a living room. New and replacement doors, windows & roof light to the existing house, with minor internal layout alterations.

  Granted Householder Loft or dormer Windows or glazing 15 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