9 Ashley Gardens Harpenden Hertfordshire Al5 3En

1. 2 Sep 2026

   Received by St Albans

2. 3 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 13 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 29 October 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 lawful development applications in a median of 71 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 52 Roundwood Lane Harpenden Hertfordshire Al5 3Ep

  5/2025/2266 Submitted 11 Dec 2025 100 yards away

  Front and rear double storey extensions, front porch with roof terrace above, internal works, revised windows and rear garden pergola

  Granted Householder Extension Windows or glazing 30 docs
  Small domestic

• 13 Haslingden Close Harpenden Hertfordshire Al5 3Ew

  5/2026/1541 Submitted 14 Aug 2026 100 yards away

  89% historically approved · decision due ~10 Oct

  Part single and part first floor front extension, first floor rear extension, alterations to openings, plus render finish to exiting elevations

  Awaiting decision Householder Extension 7 docs
  Domestic

• 79 Roundwood Lane Harpenden Hertfordshire Al5 3Ex

  5/2016/2642 Submitted 23 Aug 2016 100 yards away

  Certificate of Lawfulness (proposed) - Altered side dormer window and new dormer window construction (resubmission following withdrawal of 5/2016/2275)

  Granted Lawful development Loft or dormer Windows or glazing 7 docs

• 79 Roundwood Lane Harpenden Hertfordshire Al5 3Ex

  5/2016/2643 Submitted 23 Aug 2016 100 yards away

  Single storey side and rear extension with rooflights following removal of existing garage

  Granted Householder Extension Loft or dormer 10 docs
  Small domestic

• 18-20 Wood End Road Harpenden Hertfordshire Al5 3Ed

  5/2021/1452 Submitted 16 May 2021 150 yards away

  Construction of three detached dwellings with associated parking and landscaping following demolition of two existing dwellings, new crossover (resubmission following refusal of 5/2020/0690)

  Granted Demolition 40 docs

• 14 Wood End Road Harpenden Hertfordshire Al5 3Ed

  5/2017/2791 Submitted 3 Oct 2017 150 yards away

  Single and two storey rear extension with balconies, first floor side extension, front porch extension, removal of hedgerow for driveway, alterations to openings and installation of rooflights following demolition of existing conservatory

  Refused Householder Extension Loft or dormer +2 12 docs
  Small domestic

• 5/2026/1638 Granted

  1 Castle Rise Wheathampstead Hertfordshire Al4 8Hx

  Certificate of Lawfulness (proposed) - Proposed loft hip to gable with rear dormer, internal alterations and all associated works at 1 Castle Rise, AL4 8HX

  Received 7 Sep, published by the council 13 Sep 2026 Lawful development
• 5/2026/1622 Granted

  9 Necton Road Wheathampstead Hertfordshire Al4 8At

  Certificate of Lawfulness (proposed) - Dormer to rear elevation to existing bedroom. new window to rear

  Received 2 Sep, published by the council 13 Sep 2026 Lawful development
• 5/2026/1561 Granted

  125 New House Park St Albans Hertfordshire Al1 1Uh

  Certificate of Lawfulness (existing) - The retrospective development comprises minor external alterations to the rear elevation of the dwellinghouse at 125 New House Park. The applicant seeks a Certificate of Lawfulness (Existing) under Section 191 of the

  Received 21 Aug, published by the council 31 Aug 2026 Lawful development
• 5/2026/1772 Awaiting decision

  14 Ashley Road St Albans Hertfordshire Al1 5Da

  Certificate of Lawfulness (Proposed) - Loft Conversion, Hip to gable, Rear dormer

  Received 29 Sep, published by the council 11 Oct 2026 Lawful development
• 5/2026/1759 Awaiting decision

  2 Grimston Road St Albans Hertfordshire Al1 5Ep

  Certificate of Lawfulness (Proposed) - Erection of a single-storey detached timber log cabin with a pent (mono-pitch) roof in the rear garden, for purposes incidental to the enjoyment of the dwellinghouse (domestic storage and hobby workshop). Footprint 9

  Received 28 Sep, published by the council 11 Oct 2026 Lawful development