5/2017/2504

1. 3 Sep 2017

   Received by St Albans

2. 4 Sep 2017

   Validated

   Checked as complete and ready for consideration.

3. 30 Oct 2017

   Decision issued: Certificate of Lawfulness Approved

4. 24 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 5/2026/0730 Decided

  100 Crabtree Lane Harpenden Hertfordshire Al5 5Rf

  Removal of rear garden store, erection of first floor side extension over existing ground floor footprint and associated internal alterations

  13 Apr 2026 56m away Householder
• 5/2026/1344 Decided

  3 Granby Avenue Harpenden Hertfordshire Al5 5Qp

  Two storey front extension, part single and two storey rear extension with basement, replacement main roof including raising ridge height with rooms within the roof space, alterations to external materials and raised patio.

  13 Jul 2026 132m away Householder
• 5/2026/1265 Decided

  43 Granby Avenue Harpenden Hertfordshire Al5 5Qp

  Following demolition of store rooms etc, proposed two-storey side and rear extensions, single-storey side and rear extensions along with internal and external alterations, new openings and chimney removal

  30 Jun 2026 132m away Householder
• 5/2026/0945 Decided

  24 Lyndhurst Drive Harpenden Hertfordshire Al5 5Rj

  Proposed first floor side/front extension

  12 May 2026 183m away Householder
• 5/2026/0388 Decided

  9 Aldwickbury Crescent Harpenden Hertfordshire Al5 5Rs

  Part single storey front extension with pitched roof to existing extension and alterations to openings

  2 Mar 2026 250m away Householder
• 5/2026/1222 Decided

  7 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

  Two storey side and rear extension, single storey side and rear extension, front porch, alterations to openings

  25 Jun 2026 297m away Householder

• 5/2026/1430 Decided

  42 Holywell Hill St Albans Hertfordshire Al1 1Bx

  Certificate of Lawfulness (proposed works to a Listed Building) - Replace master bathroom suite on 1st floor of property. Modern bathroom to be replaced with new suite, including new shower cubicle. It will use existing water and waste routes , and tiling

  27 Jul 2026 Lawful development
• 5/2026/0901 Granted

  37 Saxon Road Wheathampstead Hertfordshire Al4 8Nz

  Certificate of Lawfulness (proposed) - Timber framed garden room to be built on ground screw foundation. Dimensions 3m x 4.2 & under 2.5m in height. This will be 1.4m distance from boundary to neighbour. This will be situation at the end of the garden

  8 May 2026 Lawful development
• 5/2026/1399 Decided

  10 Birchwood Way Park Street St Albans Hertfordshire Al2 2Sg

  Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and 3No. roof lights to front elevation

  22 Jul 2026 Lawful development
• 5/2026/1031 Granted

  5 Flamsteadbury Lane Redbourn Hertfordshire Al3 7Dh

  Certificate of Lawfulness (proposed) - Construction of single storey rear 3m extension, maximum eaves height 3m and maximum ridge height 4m

  26 May 2026 Lawful development
• 5/2026/1035 Refused

  30 Culver Road St Albans Hertfordshire Al1 4Ed

  Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and two velux to front

  22 May 2026 Lawful development