23 Codicote Road Welwyn AL6 9TT

1. 9 Mar 2023

   Received by Welwyn Hatfield

2. 4 May 2023

   Decision issued: Granted

3. 7 Sep 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

• 23 Codicote Road Welwyn AL6 9TT

  6/2023/0538/HOUSE Submitted 9 Mar 2023 0m away

  Erection of a first floor rear extension and rebuild of existing ground floor extension

  Granted Householder Extension
  Domestic

• 4 Reynards Road Welwyn AL6 9TP

  6/2022/2772/PN8 Submitted 6 Dec 2022 48m away

  Prior approval for the erection of a single storey rear extension measuring 8m in depth, 4m in height and 3m to the eaves

  Granted Prior approval Extension
  Small domestic

• 1 The Limberlost Welwyn AL6 9TS

  6/2026/1288/LAWE Submitted 22 Jul 2026 91m away

  81% historically approved · decision due ~16 Sep

  Certificate of existing lawfulness for a single storey rear extension

  Awaiting decision Lawful development Extension 4 docs
  Small domestic

• 35 Codicote Road Welwyn AL6 9TT

  6/2024/1629/HOUSE Submitted 27 Aug 2024 97m away

  Erection of first floor extension with loft accommodation and rooflights to front and rear roofslopes, single storey rear extension, with other external alterations following demolition of single storey rear extension and outbuilding

  Granted Householder Extension Loft or dormer +1
  Small domestic

• Former Big Cat Sanctuary Codicote Road Welwyn Hertfordshire AL6 9TU

  26/01924/FP Submitted 1 Sep 2026 137m away

  90% historically approved · decision due ~27 Oct

  Erection of 109 residential dwellings with access, parking, hard and soft landscaping and public open space following demolition of all existing buildings and structures

  Awaiting decision Full applications Demolition

• 45 Codicote Road Welwyn AL6 9TT

  6/2021/0283/HOUSE Submitted 1 Feb 2021 161m away

  Erection of first floor extension and external alterations following demolition of single storey rear extension

  Granted Householder Extension Demolition 1 doc
  Small domestic

• 6/2026/0735/LAWE Refused

  1 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

  Certificate of lawfulness for the existing use of the land as residential garden land ancillary to the dwellinghouse continuously since 2012

  27 Apr 2026 Lawful development
• 6/2026/1132/LAWE Refused

  19 Cunningham Avenue Hatfield AL10 9LR

  Certificate of existing lawfulness of a 5 person HMO since 6 April 2006

  30 Jun 2026 Lawful development
• 6/2026/1506/LAWP Awaiting decision

  Gosmore Brocket Road Welwyn Garden City AL8 7TT

  Erection of single storey side extensions x 2 and two storey rear extension

  27 Aug 2026 Lawful development
• 6/2026/1503/LAWE Awaiting decision

  27 Batterdale Hatfield AL9 5JG

  Certificate of lawfulness for the existing like-for-like replacement of damaged and aged windows on the front and rear elevations

  26 Aug 2026 Lawful development
• 6/2026/1044/LAWP Granted

  5 Peartree Court Welwyn Garden City AL7 3XN

  Certificate of lawfulness for the change of use from C3 (dwellinghouse) to C4 (HMO for up to 6 unrelated residents)

  15 Jun 2026 Lawful development