12 St Johns Close Welwyn AL6 9RB

1. 18 Feb 2026

   Received by Welwyn Hatfield

2. 2 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 6 May 2026

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 6 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 11 Carleton Rise Welwyn AL6 9RP

  6/2021/0953/HOUSE Submitted 24 Mar 2021 139m away

  Erection of two storey front extension, garage conversion, new replacement roof to rear and alterations to fenestration and openings

  Granted Householder Extension Roofing +1
  Small domestic

• 11 Carleton Rise Welwyn AL6 9RP

  6/2026/0782/HOUSE Submitted 5 May 2026 140m away

  Installation of a front portico

  Granted Householder
  Domestic

• 3 Cylers Thicket Welwyn AL6 9RS

  6/2022/2832/HOUSE Submitted 14 Dec 2022 226m away

  Erection of part single storey rear extensions, part first floor side extension over existing double garage with conversion of 1 garage and removal of UPVC cladding in lieu of render finish.

  Granted Householder Extension
  Small domestic

• 20 Kindersley Close Welwyn AL6 9RN

  6/2019/2742/COND Submitted 30 Oct 2019 247m away

  Submission of details pursuant to condition 4 (archaeological report) on planning permission 6/2018/1599/FULL

  Granted Conditions

• 1A Wendover Drive Welwyn AL6 9LT

  6/2021/1546/LAWP Submitted 14 May 2021 248m away

  Certificate of lawfulness for erection of single storey side extension and internal alterations.

  Granted Lawful development Extension
  Small domestic

• 3 Wendover Drive Welwyn AL6 9LT

  6/2023/0427/HOUSE Submitted 24 Feb 2023 257m away

  Loft extension with installation of front & rear dormers and raising the height of the existing roof

  Granted Householder Extension Loft or dormer
  Domestic

• 6/2026/1228/HOUSE Granted

  109 Mount Way Welwyn Garden City AL7 4LA

  Erection of single storey front extension

  13 Jul 2026 Householder
• 6/2026/1011/HOUSE Granted

  5 Brookside Crescent Cuffley Potters Bar EN6 4QW

  Erection of rear extension, single storey side extension, new porch, additions/alterations to windows on side elevation and demolition of garage

  9 Jun 2026 Householder
• 6/2026/0703/HOUSE Granted

  57 Great North Road Brookmans Park AL9 6LA

  Erection of part double part single storey rear extension, single storey front porch extension, raising of roof and eaves to accommodate loft conversion, alterations to materials and fenestration, erection of front boundary wall and gates

  20 Apr 2026 Householder
• 6/2026/0534/HOUSE Refused

  16 Chipmunk Chase Hatfield AL10 9GH

  Retention of single storey rear extension and garage conversion to study/office

  24 Mar 2026 Householder
• 6/2026/1175/HOUSE Granted

  5A Honeycroft Welwyn Garden City AL8 6HR

  Erection of a single storey rear extension, alterations to opening on side elevation and garden room with covered area following demolition of conservatory

  7 Jul 2026 Householder