27 Trumpington Drive St Albans Hertfordshire Al1 2Jw

1. 8 Jan 2026

   Received by St Albans

2. 27 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 7 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 24 March 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.

• 15 Trumpington Drive St Albans Hertfordshire Al1 2Jw

  5/2026/0588 Submitted 24 Mar 2026 50 yards away

  Single storey front extension

  Granted Householder Extension 18 docs
  Small domestic

• 15 Trumpington Drive St Albans Hertfordshire Al1 2Jw

  5/2026/1655 Submitted 16 Sep 2026 50 yards away

  60% historically approved · decision due ~11 Nov

  Prior Notification - Single storey rear extension 3.20m in height x 4.30m in depth with 2.90m height to eaves

  Awaiting decision Prior approval Extension 8 docs
  Small domestic

• 18 Trumpington Drive St Albans Hertfordshire Al1 2Jp

  5/2026/0686 Submitted 1 Apr 2026 50 yards away

  Discharge of Conditions 4 (existing levels and proposed structural slab levels) and 9 (PEA compliance) of planning permission 5/2024/1210 dated 28/11/2025 for Proposed single storey rear extension and new dwelling with rear facing dormer on land to the si

  Granted Conditions New dwelling Extension +1 11 docs
  Small domestic

• 1 Chapel Place Wallingford Walk St Albans Hertfordshire Al1 2Ap

  5/2017/2613 Submitted 17 Sep 2017 100 yards away

  Replacement conservatory

  Refused Householder Extension 12 docs
  Small domestic

• 16 Pemberton Close St Albans Hertfordshire Al1 2Js

  5/2017/2538 Submitted 6 Sep 2017 100 yards away

  Single storey front extension with rooflights

  Granted Householder Extension Loft or dormer 8 docs
  Small domestic

• 38 Wallingford Walk St Albans Hertfordshire Al1 2Jj

  5/2021/1045 Submitted 7 Apr 2021 150 yards away

  Loft conversion with dormer window and rooflights with cedar cladding

  Granted Householder Loft or dormer Windows or glazing 10 docs
  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