5/2026/0783

1. 20 Apr 2026

   Received by St Albans

2. 21 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 9 Jul 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

• 5/2026/1314 Decided

  46 Lea Road Harpenden Hertfordshire Al5 4Pg

  Certificate of Lawfulness (proposed) - Hip to gable Loft conversion with rear dormer & 3 velux to front

  7 Jul 2026 93m away Lawful development
• 5/2017/2493 Granted

  17 Lea Road Harpenden Hertfordshire Al5 4Pq

  Certificate of Lawfulness (proposed) - Single storey side extension with rooflights

  31 Aug 2017 117m away Lawful development
• 5/2025/1696 At appeal

  44A Sauncey Avenue Harpenden Hertfordshire Al5 4Ql

  ADDITIONAL PLAN & AMENDED DESCRIPTION - Demolition of existing 3 bedroom dwelling, garage and conservatory and construction of new 4 bedroom dwelling with parking, landscaping alterations and re-grading of the rear garden with garden outbuilding

  15 Sep 2025 169m away
• 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 196m away
• 5/2017/2565 Refused

  11 St James Road Harpenden Hertfordshire Al5 4Nx

  Non Material Amendment - Change the 2 first floor rear elevation bedroom 3 windows to one 1800mm wide window, change the masonry piers between windows on the basement level to steel posts and alter style of the patio windows to planning permission 5/2017/

  7 Sep 2017 210m away Amendments
• 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 213m away Lawful development

• 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