3 How Field Harpenden Hertfordshire Al5 3Au

This site has had 3 applications since 2026: 2 approved, 1 refused.

• 5/2026/1296 Granted

  3 How Field Harpenden Hertfordshire Al5 3Au

  Two storey front extension, garage conversion and alterations to openings

  Decided 13 Aug 2026 Householder
• 5/2026/0188 Granted

  3 How Field Harpenden Hertfordshire Al5 3Au

  Certificate of Lawfulness (proposed) - Construction of single storey rear extension

  Decided 22 Apr 2026 Lawful development

1. 25 Feb 2026

   Received by St Albans

2. 1 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Jun 2026

   Decision issued: DC4 Refusal

4. 7 Sep 2026

   Added to PlanIndex

St Albans refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 3 How Field Harpenden Hertfordshire Al5 3Au

  5/2026/0188 Submitted 2 Feb 2026 50 yards away

  Certificate of Lawfulness (proposed) - Construction of single storey rear extension

  Granted Lawful development Extension 6 docs
  Small domestic

• 3 How Field Harpenden Hertfordshire Al5 3Au

  5/2026/1296 Submitted 6 Jul 2026 50 yards away

  Two storey front extension, garage conversion and alterations to openings

  Granted Householder Extension 13 docs
  Small domestic

• 47 Roundwood Park Harpenden Hertfordshire Al5 3Ag

  5/2017/1787 Submitted 21 Jun 2017 150 yards away

  Discharge of Condition 3 (samples of materials) of planning permission 5/2016/3293 dated 30/01/2017 for the Addition of first floor with habitable accommodation in the roof, raising of roof from flat to pitched of existing single storey rear extension, n

  Granted Conditions Extension 3 docs
  Small domestic

• Land Rear Of 31 Roundwood Park Harpenden Hertfordshire

  5/2017/3259 Submitted 17 Nov 2017 150 yards away

  Variation of Condition 2 (approved plans) to change the approved timber cladding to quartz zinc cladding and the addition of a porch canopy to the front of the property to planning permission 5/2016/3245, allowed on appeal dated 08/08/2017, for Two bedroo

  Granted Extension 19 docs
  Small domestic

• Land Rear Of 31 Roundwood Park Harpenden Hertfordshire

  5/2017/3225 Submitted 14 Nov 2017 150 yards away

  Discharge of Condition 6 (access) of planning permission 5/2016/3245 allowed on appeal dated 08/08/2017 for Two bedroom detached house, closeboarded boundary fence, rendered wall and fencing and new crossover for parking

  Granted Conditions New dwelling 8 docs
  Small domestic

• Land Rear Of 31 Roundwood Park Harpenden Hertfordshire

  5/2017/3226 Submitted 14 Nov 2017 150 yards away

  Discharge of Conditions 4 (sample of materials), 8 (landscaping), 9 (tree planting) and 10 (soft landscape) of planning permission 5/2016/3245, allowed on appeal dated 08/08/2017, for Two bedroom detached house, closeboarded boundary fence, rendered wall

  Granted Conditions New dwelling 5 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