41 Hillside Road Harpenden Hertfordshire Al5 4Bs

1. 10 Sep 2017

   Received by St Albans

2. 12 Sep 2017

   Validated

   Checked as complete and ready for consideration.

3. 7 Nov 2017

   Decision issued: Certificate of Lawfulness Approved

4. 30 Jul 2026

   Added to PlanIndex

St Albans granted permission on 7 November 2017, 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.

• 43 Hillside Road Harpenden Hertfordshire Al5 4Bs

  5/2016/3084 Submitted 12 Oct 2016 0m away

  Single and two storey side and rear extension, alterations to openings including juliet balcony and loft conversion with rear dormer window

  Granted Householder Extension Loft or dormer +1 9 docs
  Domestic

• 11 Hillside Road Harpenden Hertfordshire Al5 4Bs

  5/2026/0525 Submitted 17 Mar 2026 0m away

  Garage conversion, with part roof extension and new front porch extension

  Granted Householder Extension 21 docs
  Small domestic

• 3 Hillside Road Harpenden Hertfordshire Al5 4Bs

  5/2026/0472 Submitted 11 Mar 2026 0m away

  Removal of existing concrete plain tiles to the main roof and replacement with natural slate; erection of a box dormer extension to the rear roof slope with metal standing-seam cladding; and construction of a single-storey rear extension with monocouche r

  Granted Householder Extension Loft or dormer 14 docs
  Small domestic

• 42 Bloomfield Road Harpenden Hertfordshire Al5 4Db

  5/2020/3132 Submitted 22 Dec 2020 66m away

  Single storey rear extension, first floor side extension, partial garage conversion and enlargement of existing dormer windows

  Granted Householder Extension Loft or dormer +1 18 docs
  Small domestic

• 5 Bloomfield Road Harpenden Hertfordshire Al5 4Dd

  5/2026/1516 Submitted 10 Aug 2026 103m away

  Proposed side and rear extension, including extension of roof and addition of dormer

  Decided Householder Extension Loft or dormer 13 docs
  Domestic

• 11 Bloomfield Road Harpenden Hertfordshire Al5 4Dd

  5/2017/1758 Submitted 19 Jun 2017 103m away

  Part single, part two storey rear extension, two storey side extension with habitable roofspace, rooflights and alterations to openings

  Granted Householder Extension Loft or dormer 11 docs
  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