14 Broadstone Road Harpenden Hertfordshire Al5 1Rg

1. 15 May 2026

   Received by St Albans

2. 19 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 13 Jul 2026

   Decision issued: Certificate of Lawfulness Approved

4. 24 Jul 2026

   Added to PlanIndex

St Albans granted permission on 13 July 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.

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.

• 31 Broadstone Road Harpenden Hertfordshire Al5 1Rb

  5/2026/0862 Submitted 1 May 2026 49m away

  Certificate of Lawfulness (Proposed) - Part of the existing garage to be converted with side windows and alterations to openings

  Granted Lawful development Windows or glazing 5 docs

• 4 Lilac Way Harpenden Hertfordshire Al5 1Sq

  5/2026/0536 Submitted 18 Mar 2026 96m away

  Demolition of existing garage, replaced with a two storey side extension and store

  Granted Householder Extension Demolition 13 docs
  Domestic

• 13 Hawthorn Close Harpenden Hertfordshire Al5 1Hn

  5/2016/3843 Submitted 23 Dec 2016 99m away

  Single storey glazed link to new garage and outbuilding following demolition of existing garage

  Granted Householder Demolition Windows or glazing 10 docs
  Small domestic

• 10 Knowle Drive Harpenden Hertfordshire Al5 1Rw

  5/2016/3097 Submitted 12 Oct 2016 107m away

  Single storey front, two storey side and first floor rear extensions, sunpipe to roof and alterations to openings

  Granted Householder Extension 10 docs
  Small domestic

• 26 Knowle Drive Harpenden Hertfordshire Al5 1Rw

  5/2017/2487 Submitted 31 Aug 2017 107m away

  Single storey rear extension with rooflights

  Granted Householder Extension Loft or dormer 12 docs
  Small domestic

• 7 Knowle Drive Harpenden Hertfordshire Al5 1Rw

  5/2016/1946 Submitted 22 Jun 2016 107m away

  Certificate of Lawfulness (proposed) - Rear dormer loft conversion

  Granted Lawful development Loft or dormer 6 docs

• 5/2026/1277 Granted

  52 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

  Certificate of Lawfulness (proposed) - The proposed development comprises building operations associated with the loft conversion of the existing roof space to provide additional habitable accommodation. The works include the construction of a rear dormer

  1 Jul 2026 Lawful development
• 5/2026/1366 Granted

  256 Sandridge Road St Albans Hertfordshire Al1 4Aj

  Certificate of Lawfulness (proposed) - Loft conversion with rear dormer & 4 velux to front

  14 Jul 2026 Lawful development
• 5/2026/1638 Decided

  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

  7 Sep 2026 Lawful development
• 5/2026/1621 Decided

  9 Ashley Gardens Harpenden Hertfordshire Al5 3En

  Certificate of Lawfulness (proposed) - Erection of a fence within boundary of the property

  2 Sep 2026 Lawful development
• 5/2026/1622 Decided

  9 Necton Road Wheathampstead Hertfordshire Al4 8At

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

  2 Sep 2026 Lawful development