3A Alexander Road London Colney Hertfordshire Al2 1Hr

1. 31 Jul 2026

   Received by St Albans

2. 1 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 15 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• 3A Alexander Road London Colney Hertfordshire Al2 1Hr

  5/2026/0758 Submitted 14 Apr 2026 0m away

  Prior Approval - Single storey rear extension 3m in height x 6m in depth and 2.75m in height to the eaves

  Granted Prior approval Extension 15 docs
  Small domestic

• 256 High Street London Colney Hertfordshire Al2 1Hp

  5/2016/1970 Submitted 26 Jun 2016 59m away

  Single storey rear extension

  Decided Householder Extension 12 docs
  Small domestic

• 293 High Street London Colney Hertfordshire Al2 1Eu

  5/2026/1358 Submitted 14 Jul 2026 80m away

  Change of use of a Mixed A1/C3 to Adult Care Home (Use Class C2) for a maximum of 5no. adults

  Decided Full applications 16 docs

• Land Rear Of 251-255 High Street London Colney Hertfordshire Al2 1Ha

  5/2017/1781 Submitted 21 Jun 2017 146m away

  Discharge of Conditions 3 (samples of materials) and 6 (hard and soft landscaping) of planning permission 5/2016/2454 dated 25/10/2016 for the Erection of two bedroom dwelling with five no. car parking spaces

  Granted Conditions 7 docs
  Domestic

• London Colney Baptist Church Kings Road London Colney Hertfordshire Al2 1En

  5/2021/1356 Submitted 6 May 2021 170m away

  Alterations to the entrance of the Church Hall at the rear of the main church

  Decided 9 docs

• 18 Oldfield Road London Colney Hertfordshire Al2 1Ja

  5/2026/1198 Submitted 22 Jun 2026 207m away

  Certificate of Lawfulness (proposed) - Rear Garden Room

  Granted Lawful development 7 docs

• 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