10 Sefton Close St Albans Hertfordshire Al1 4Pf

1. 2 Feb 2026

   Received by St Albans

2. 3 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 27 May 2026

   Decision issued: Certificate of Lawfulness Approved

4. 25 Aug 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

• 9 Sefton Close St Albans Hertfordshire Al1 4Pf

  TP/2026/0169 Submitted 7 Apr 2026 0m away

  T1-Oak-Fell to ground level as it has outgrown its position and looks to be in decline due to the deep rot pockets at the base of the tree and the dead wood within the crown and down one side of the trunk. The owners and neighbours are extremely worried i

  Granted Trees 9 docs

• 11 Blenheim Road St Albans Al1 4Ns

  TP/2017/0465 Submitted 10 Sep 2017 69m away

  Fell Sycamore in rear garden.

  Granted Trees 2 docs

• 12 Blenheim Road St Albans Hertfordshire Al1 4Nr

  TP/2026/0036 Submitted 28 Jan 2026 86m away

  Proposed Works: Reduce and shape one Apple tree by approximately 30%. Reduce and shape one Cherry tree by approximately 30%. Reduce and shape one Liquidambar by approximately 30%. Reduce and shape one Prunus tree located in the front garden by approximate

  Granted Trees 2 docs

• 22 Blenheim Road St Albans Hertfordshire Al1 4Nr

  TP/2026/0385 Submitted 6 Aug 2026 86m away

  Apple - Fell

  Decided Trees 2 docs

• 35 Clarence Road St Albans Hertfordshire Al1 4Np

  5/2017/2513 Submitted 4 Sep 2017 152m away

  Demolition of existing bungalow and construction of five bedroom detached house including basement floor, new garden shed, garden access to basement and associated landscaping and parking

  At appeal New dwelling Demolition 22 docs
  Small domestic

• 23 Clarence Road St Albans Hertfordshire Al1 4Np

  5/2026/0951 Submitted 15 May 2026 152m away

  Certificate of Lawfulness (proposed) - New single storey garden room and close boarded access gates

  Refused Lawful development 6 docs
  Small domestic

• 5/2026/1607 Decided

  5 Flavian Close St Albans Hertfordshire Al3 4Jx

  Certificate of Lawfulness (proposed) - Construction of single storey rear extension with tiled lean to roof fitted with 3no. roof lights

  1 Sep 2026 Lawful development
• 5/2026/0951 Refused

  23 Clarence Road St Albans Hertfordshire Al1 4Np

  Certificate of Lawfulness (proposed) - New single storey garden room and close boarded access gates

  15 May 2026 Lawful development
• 5/2026/1558 Granted

  31 Highfield Avenue Harpenden Hertfordshire Al5 5Ub

  Certificate of Lawfulness ( Proposed) - Proposed rear single-storey extension, side single-storey extension and removal of rear chimney stack

  20 Aug 2026 Lawful development
• 5/2026/0291 Refused

  66 Pondfield Crescent St Albans Hertfordshire Al4 9Pf

  Certificate of Lawfulness (proposed) - Hip to gable and new dormer

  16 Feb 2026 Lawful development
• 5/2026/1252 Refused

  7 Palfrey Close St Albans Hertfordshire Al3 5Re

  Certificate of Lawfulness (proposed) - Single storey/ground floor extension to dining room, to extend as far as kitchen rear/outside wall across to party wall. Repositioning French windows to new rear of room, and repositioning downpipe and soak away in r

  30 Jun 2026 Lawful development