14 Summerfield Close London Colney Hertfordshire Al2 1Pt

1. 18 Jun 2017

   Received by St Albans

2. 20 Jun 2017

   Validated

   Checked as complete and ready for consideration.

3. 14 Aug 2017

   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

• 72 Manor Road London Colney Hertfordshire Al2 1Pw

  5/2017/1735 Submitted 18 Jun 2017 61m away

  Certificate of Lawfulness (proposed) - Rear dormer window, front rooflights and chimney breast removal

  Granted Lawful development Loft or dormer Windows or glazing 6 docs

• 56 Manor Road London Colney Hertfordshire Al2 1Pw

  5/2026/0543 Submitted 19 Mar 2026 61m away

  Part single storey, part double storey side extension

  Decided Householder Extension 13 docs
  Small domestic

• 61 Manor Road London Colney Hertfordshire Al2 1Pp

  5/2025/1346 Submitted 15 Jul 2025 108m away

  Single storey rear and side extension

  Decided Householder Extension 7 docs
  Small domestic

• 13 Manor Road London Colney Hertfordshire Al2 1Pn

  5/2021/0700 Submitted 8 Mar 2021 171m away

  Single storey front and rear extensions, alteration to opening

  Decided Householder Extension 8 docs
  Small domestic

• 23 Manor Road London Colney Hertfordshire Al2 1Pn

  5/2017/2647 Submitted 19 Sep 2017 171m away

  Single storey rear extension with rooflights following demolition of existing conservatory and outbuilding

  Decided Householder Extension Loft or dormer +1 13 docs
  Small domestic

• 139 Kings Road London Colney Hertfordshire Al2 1Er

  5/2016/2999 Submitted 3 Oct 2016 201m away

  Demolition of garage and construction of two, attached, two bedroom dwellings with associated landscaping, parking and new extended vehicle crossover. Single storey rear extension and replacement porch to existing property.

  Decided Extension Demolition 17 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