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 50 yards 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

• 3 Hillside Road Harpenden Hertfordshire Al5 4Bs

  5/2025/1903 Submitted 15 Oct 2025 50 yards away

  Erection of a new front porch

  Granted Householder Extension 11 docs
  Small domestic

• 1 Hillside Road Harpenden Hertfordshire Al5 4Bs

  5/2016/3785 Submitted 19 Dec 2016 50 yards away

  Single storey rear extension following demolition of existing and alterations to openings (resubmission following approval of 5/2016/2209 dated 09/09/2016)

  Granted Householder Extension Demolition 13 docs
  Small domestic

• 11 Hillside Road Harpenden Hertfordshire Al5 4Bs

  5/2026/0525 Submitted 17 Mar 2026 50 yards 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 50 yards 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 50 yards 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

• 5/2026/1638 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