31 Broadstone Road Harpenden Hertfordshire Al5 1Rb

1. 1 May 2026

   Received by St Albans

2. 2 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Jun 2026

   Decision issued: Certificate of Lawfulness Approved

4. 24 Jul 2026

   Added to PlanIndex

St Albans granted permission on 23 June 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.

• 14 Broadstone Road Harpenden Hertfordshire Al5 1Rg

  5/2026/0967 Submitted 15 May 2026 49m away

  Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and three rooflights to front

  Granted Lawful development Loft or dormer 14 docs

• 4 Lilac Way Harpenden Hertfordshire Al5 1Sq

  5/2026/0536 Submitted 18 Mar 2026 69m away

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

  Granted Householder Extension Demolition 13 docs
  Domestic

• 15 Pendennis Court Harpenden Hertfordshire Al5 1Sg

  5/2026/1046 Submitted 28 May 2026 99m away

  Garage conversion and house front extension

  Decided Householder Extension 12 docs
  Small domestic

• 10 Eastcote Drive Harpenden Hertfordshire Al5 1Se

  5/2017/3128 Submitted 7 Nov 2017 121m away

  Single storey front infill with rooflights, side extension, garage conversion, loft conversion with raised roof height and rear dormer window and rooflights to front, alterations to side openings

  Granted Householder Extension Loft or dormer +1 10 docs
  Small domestic

• 39 Eastcote Drive Harpenden Hertfordshire Al5 1Se

  5/2026/0998 Submitted 20 May 2026 121m away

  Certificate of Lawfulness (proposed) - Construction of a single storey rear extension with roof lights

  Granted Lawful development Extension Loft or dormer 6 docs
  Small domestic

• 12 Eastcote Drive Harpenden Hertfordshire Al5 1Se

  5/2016/1874 Submitted 14 Jun 2016 121m away

  Single storey rear extension and front canopy

  Granted Householder Extension 12 docs
  Small domestic

• 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