9 Mile House Close St Albans Hertfordshire Al1 1Td

1. 29 Sep 2025

   Received by St Albans

2. 30 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 6 Nov 2025

   Decision issued: Certificate of Lawfulness Approved

4. 21 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

• 22 Mile House Lane St Albans Hertfordshire Al1 1Tb

  5/2026/0185 Submitted 2 Feb 2026 109m away

  Ground floor part side and rear extension, with new roof over existing garage. First floor part extension

  Withdrawn Extension Roofing 12 docs

• 24 Mile House Lane St Albans Hertfordshire Al1 1Tb

  5/2026/0165 Submitted 30 Jan 2026 109m away

  Single storey side and rear extension

  Decided Householder Extension 22 docs
  Small domestic

• Avalon Hotel 260 London Road St Albans Hertfordshire Al1 1Tj

  5/2016/1922 Submitted 21 Jun 2016 113m away

  Demolition of existing building and construction of seven, two bedroom flats with associated parking and landscaping

  Decided New dwelling Demolition 35 docs

• 25 Mile House Lane St Albans Hertfordshire Al1 1Tf

  5/2021/1457 Submitted 16 May 2021 168m away

  Single storey rear and part single, part first floor side extension

  Decided Extension 18 docs
  Small domestic

• 25 Mile House Lane St Albans Hertfordshire Al1 1Tf

  5/2025/2305 Submitted 18 Dec 2025 168m away

  Demolition of single storey section of building, and construction of 3 no. extensions to provide ensuites to bedrooms

  Refused Extension Demolition 21 docs
  Small domestic

• 12 Admirals Walk St Albans Hertfordshire Al1 5Sf

  5/2026/0205 Submitted 4 Feb 2026 282m away

  Variation of conditions 2 (approved plans) & 12 (noise assessment -air source heat pump) - Condition 2 - To allow adjustments to fenestration sizes and locations , porch canopies location and roof detail including pergola to outbuilding plot 1. Condition

  Decided Extension Windows or glazing 48 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