5/2026/0301

1. 17 Feb 2026

   Received by St Albans

2. 18 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 12 Jun 2026

   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

• 5/2026/0631 Decided

  28 Wroxham Way Harpenden Hertfordshire Al5 4Pp

  Proposed two storey side and rear extension and single storey rear extension, alterations to patio, boundary treatments and landscaping.

  27 Mar 2026 0m away Householder
• 5/2026/1255 Decided

  82 Ox Lane Harpenden Hertfordshire Al5 4Pw

  Variation of Conditions 1 (approved plans),2 (materials compliance),4 (levels compliance),5 (access),6 (hard and soft landscaping) for planning permission 5/2025/1100 dated 13/08/2025 for Variation of Condition 2 (approved plans) to allow adjustments to

  29 Jun 2026 114m away
• 5/2026/1125 Decided

  52 Wroxham Way Harpenden Hertfordshire Al5 4Pr

  Single storey rear extension, garage conversion to gym and air conditioning unit

  29 May 2026 169m away Householder
• 5/2016/3091 Refused

  12 Willoughby Road Harpenden Hertfordshire Al5 4Pf

  Certificate of Lawfulness (proposed) - Single storey rear and side extension (prior approval given 5/2016/2391 dated 29/09/2016), insertion of skylight and french doors to existing extension

  12 Oct 2016 195m away Lawful development
• 5/2025/1634 Decided

  Four Oaks Farm Bower Heath Harpenden Hertfordshire Al5 5Fg

  Demolition of agricultural building and removal of earth bunds and erection of two dwellings with associated landscaping, driveways, garaging and parking areas and change of use of agricultural land to residential use for domestic gardens

  4 Sep 2025 238m away
• 5/2026/1021 Granted

  Sir John Lawes School Manland Way Harpenden Hertfordshire Al5 4Qp

  Discharge of Condition 3 (materials) of planning permission 5/2025/1978 dated 25/02/2026 for Proposed development of a single storey teaching block with music practice rooms, performance studio and classrooms including extension to existing car park and l

  22 May 2026 251m away Conditions

• 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